Surface Roughness Research Articles

Effects of water-guided laser surface strengthening on surface properties and fatigue life of TC4 titanium alloy in tension-tension fatigue tests

In this study, we introduce a novel surface strengthening technique known as Water-Jet Guided Laser (WJGL) strengthening. This method is investigated for its impact on the surface properties of TC4 titanium alloy, highlighting its effectiveness in enhancing material performance and extending service life. WJGL strengthening influences material characteristics by adjusting jet velocity and laser overlap ratio.Surface roughness increases with higher jet velocities, and residual stress distribution is similarly affected. Specifically, at a 30 % overlap ratio, surface roughness values rise by 0.0562, 0.2551, and 0.6634 μm as jet velocity increases from 300 to 400 mm/s. Residual compressive stress initially increases with jet velocity, reaching peaks of 827.5, 1018.8, and 1003.3 MPa, before declining.The technique shows consistent effects on maximum residual compressive stress across various overlap ratios, with jet velocity being the primary factor affecting residual stress distribution. WJGL strengthening significantly improves high-cycle fatigue life and thermo-mechanical fatigue performance under tensile-tensile loading conditions. Higher jet velocities correlate with an increased number of cycles to failure in high-cycle fatigue testing. The fracture-prone area initially contracts and then expands, likely due to changes in residual stress.In thermo-mechanical fatigue tests, the central region exhibits a reduced lifespan, indicating a concentrated stress distribution. Fatigue cycle counts show a consistent pattern across different overlap ratios and jet velocities, with higher overlap ratios contributing to longer fatigue life.Compared to traditional techniques such as Water-Jet (WJ) and Laser Shock Peening (LSP), WJGL strengthening demonstrates superior performance and presents a promising approach for material enhancement.

Ultrasonic shot peening (USSP) post-treatment of Ni laser cladding on mild steel

The ultrasonic shot peening (USSP) technique serves as a reliable post-treatment method for various industrial components to prevent functional failures. This study aims to develop hybrid Ni claddings approximately 300 µm thick on mild steel using laser cladding (LC) and USSP techniques. Morphological studies reveal that the claddings exhibit enhanced closure of cracks, increased hardness, and improved scratch resistance after peening. XRD analysis confirms the presence of compressive residual stress, as well as grain refinement and texturing effects after the peening. Furthermore, the research endeavors to improve their mechanical and electrochemical properties by employing USSP's varied process parameters in a hybrid approach. After undergoing USSP treatment, the average surface roughness was increased by up to 6 µm due to the formation of dimples, while it was 8 µm in the as-cladded and only 1.5 µm after polishing. Furthermore, compared to the as-cladded and polished claddings, the hybrid claddings exhibit a hydrophobic character linked to improved corrosion resistance and better in-depth roughness profiles.

Investigation of anisotropic characteristics in ultra-precision grinding of sapphire crystal planes and strategies for suppression

Sapphire has been extensively utilized due to its excellent infrared transmittance. The demand for sapphire optical components has transitioned from flat geometries to more complex curved geometries. This transition necessitates the processing of sapphire from a single crystal plane to multiple crystal planes, presenting a significant challenge. To gain a comprehensive understanding of the anisotropy present in the machining of sapphire multiple crystal planes and to explore strategies for its suppression, various grinding wheels were employed for ultra-precision grinding of the sapphire A-plane, C-plane, M-plane, N-plane, and R-plane. This investigation encompassed multiple facets, including surface roughness, surface topography, residual stress, acoustic emission time-frequency characteristics, and infrared transmittance. A thorough analysis was conducted on the morphology of corrosion damage and the anisotropic mechanisms involved in sapphire ultra-precision grinding, as well as the resulting grinding quality following the implementation of suppression strategies. The findings indicate that the A-plane, C-plane, and M-plane of sapphire exhibit significant anisotropic characteristics when ground with the D25 resin bond grinding wheel, whereas the N-plane and R-plane do not display such characteristics. Furthermore, the application of the D3 ceramic bond grinding wheel effectively suppresses the anisotropy in the grinding of different sapphire crystal planes, achieving a high-quality surface finish with a ductile domain exceeding 90 %, and ensuring high uniformity in the ultra-precision grinding of various sapphire crystal planes.

Multi-facial freeform monolith optics for astronomical and space applications

The utilization of a multi-facial freeform monolithic (MFFM) component in a compact Cassegrain configuration design offers unprecedented capabilities to accommodate various next-generation science instruments. The concept of the MFFM component can be employed for applications in telescopes working at ultra-violet, optical, infrared, terahertz, microwave, and even radio frequencies. MFFM finds its scope in space optical and astronomical systems where the risks are associated with the alignment, manufacturability, and maintaining large-sized apertures, large number of components, cost, and volume of the flight optical terminals and instruments. The current challenges faced at the manufacturing phase of MFFM are the precision positioning of each surface concerning the optical axis and maintaining the required edge thickness. This paper presents the optical design, fabrication, measurement, and in-laboratory characterization of MFFM. The results of a prototyping effort through ultra-precision single-point diamond turning (SPDT) and coating demonstrate the feasibility of producing these elements as per size and weight requirements. The experimental results show excellent surface qualities in terms of nanometric surface roughness and close-to-submicron form accuracy on each surface of the freeform monolith. Focusing performance and imaging performance are carried out to validate the designed and manufactured precision component. The main contribution is highlighted in terms of the optimized fabrication process for producing the precision MFFM for a fast optical system while balancing the alignment errors. The demonstrated research work highlights the intriguing possibilities of the monolith and creates new avenues for research in domains that use huge optical systems, such as astrophysical study, planetary observation, earth monitoring, and geosciences.

High-efficient nanoemulsions separation by surface manipulation of sands

Oil-in-water (O/W) nanoemulsions, prevalent in the cosmetics, pharmaceutical, and petroleum industries, present significant threats to aquatic ecosystems and human health upon their inadvertent release into the environment. However, the nanoscale droplet size and robust interfacial film of nanoemulsions confer exceptional stability, rendering their separation a formidable challenge. Developing an economical and efficient method to remove nanoemulsions is crucial, offering a cost-effective and energy-saving alternative to traditional techniques. Here we present a sand filtration system integrating oleophilic and oleophobic sands, achieving cost-effective, high-flux, and efficient separation of nanoemulsions. The synergistic effect of hydrophobic silane treatment and a rough surface structure endows the oleophilic sands with exceptional oil absorption capacity. Meanwhile, the hydration layer on the oleophobic sands confers strong anti-oil adhesion properties in aqueous environments, facilitating swift water permeation. Remarkably, under gravity alone, the mixed rough sand filter (MRSF) achieves a separation flux exceeding 2519 L.m−2.h−1 with a separation efficiency of up to 98.7 %. This work offers a promising approach for achieving high-flux, efficient nanoemulsion separation.

Gold nanostars and nanourchins for enhanced photothermal therapy, bioimaging, and theranostics.

Photothermal therapy (PTT), a recently emerging method for eradicating tumors, utilizes hyperthermia induced by photo-absorbing materials to generate heat within cancer cells. Gold nanoparticles (AuNPs) have gained reliability for in vitro and in vivo applications in PTT due to their strong light absorbance, stability, and biocompatibility. Yet, their potential is limited by their spherical shape, impacting their size capabilities, electromagnetic enhancement effects, and localized surface plasmon resonance (LSPR). Anisotropic shapes have been tested and implemented in this treatment to overcome the limitations of spherical AuNPs. Nanostars (AuNSs) and nanourchins (AuNUs) offer unique properties, such as increased local electron density, improved catalytic activity, and an enhanced electromagnetic field, which have proven to be effective in PTT. Additionally, these shapes can easily reach the NIR-I and NIR-II window while exhibiting improved biological properties, including low cytotoxicity and high cellular uptake. This work covers the critical characteristics of AuNS and AuNUs, highlighting rough surface photothermal conversion enhancement, significantly impacting recent PTT and its synergy with other treatments. Additionally, the bioimaging and theranostic applications of these nanomaterials are discussed, highlighting their multifaceted utility in advanced cancer therapies.

Experimental Study of Single-Lap Adhesive Joints to Analyze and Predict the Tensile Strength Values of Aluminum Alloy 6061 Substrates using Artificial Neural Networks

Adhesive bonding is one of the essential methods applied in wide fields, mainly automotive and aerospace, because the adhesive can be used with various materials, weighs less compared to other methods, is easy to work with, and does not require many tools. The present research focuses on determining and predicting the ultimate tensile values for single-lap adhesive joints. The mathematical models and artificial neural network (ANN) method predict the tensile strength values. Two variables were used: the surface roughness and the bonding area. To determine tensile test values, ten samples were used with different surface roughness and an overlap distance of 25 and 40 mm. The results showed that the bonding distance had more effect than the surface roughness on the ultimate tensile load. Also, the predicted error values through mathematical models did not exceed 3.209% for the samples, while the ANN samples' error values did not exceed 8.312.

Multiscale Investigation of Liquid Imbibition on an Electrodeposited Rough Surface.

Hydrophilic and superhydrophilic surfaces are often used in various applications, such as biomedical surface modification, heat pipe design, lab-on-chip devices, microelectronic structure design, etc. Deposition of molecules on surfaces and chemical modification of the surface are two of the frequently adopted techniques to fabricate hydrophilic surfaces. However, achieving controlled and precise surface roughness is an expensive process, and the multiscale nature of liquid imbibition on rough surfaces complicates the system's physics. To address this challenge, we propose an alternative approach for creating controlled rough surfaces by electrodeposition of copper ions on copper electrodes, explore the influence of various length scales encountered in roughened surfaces, ranging from micrometers to angstroms, and examine the associated physics. The microscale roughnesses are controlled by adjusting the deposition time. A molecular level investigation is employed to probe the intriguing physics of liquid imbibition on the created rough surface. The molecular analysis of droplet contact line dynamics, including the contact angle and footprint radius, shows qualitative alignment with the real systems. Additionally, this study provides new insights into the flow velocities during imbibition within surface asperities at the molecular level. Directional velocities, such as axially downward and horizontally outward flows, which are otherwise challenging to measure experimentally, are also evaluated on a molecular scale. These findings provide a fundamental understanding of the intricate phenomena of liquid spreading and imbibition on metallic surfaces with randomly distributed rough textures, deepened by molecular-scale insights. The agreement, on a qualitative scale, between the experiments and simulations is successfully established, providing a fundamental understanding of the complex phenomena of water droplet imbibition dynamics on an electrodeposited surface.

Numerical simulation of cathode-spot crater and droplet formation with linear and circular motion process

Abstract In this paper, a three-dimensional cathode spot erosion model is proposed to study the development of cathode spot motion 
process on the surface of copper cathode. The formation and development process of cathode spots motion without external 
magnetic field is studied. In this model, energy flux density, pressure, and current value are considered as external parameters. 
The simulation results compared the cathode spot ablation trajectories and temperature distribution under different motion 
forms and motion velocities. The results indicated that during the spots expansion process, the flow of liquid metal will form a 
convex structure on the surface of the cathode and a hollow structure inside the cathode. Comparing different motion types, the 
annular motion significantly increased the roughness of the cathode surface. With the increase of the speed of spots movement, 
the interaction between the craters is significantly weakened, which will reduce the temperature and the roughness of the 
cathode surface. The simulation results are consistent with the experimental results.

Synthesis of nickel and copper metal complexes for blending in PVC to enhance UV absorption and stability

Three new copper and nickel complexes were synthesized using N-alkylated imidazole as a ligand, characterized by NMR, FTIR, and UV analysis, and subsequently assessed as UV absorbers to enhance the stability of polyvinyl chloride (PVC). PVC is widely used due to its cost-effectiveness, resistance to alkali and acid corrosion, and ease of molding. However, its susceptibility to degradation under prolonged UV exposure poses a significant challenge to its durability. To address this, the study focuses on the effect of these synthesized complexes on the stabilization of PVC films subjected to 500 h of UV irradiation at 25 °C. Analytical techniques, including IR spectroscopy, UV-visible spectroscopy, weight loss analysis, and SEM with EDX, were employed to evaluate the degradation of the PVC films. The results demonstrated that the C1 complex provided superior protection against UV-induced damage, significantly reducing decomposition, and minimizing surface roughness, cracks, and overall deterioration compared to C2 and C3 complexes, and a blank sample. C1 exhibited the highest efficiency, with a 91% reduction in degradation. Response Surface Methodology (RSM) was utilized to optimize the experimental results, further confirming the outstanding performance of C1 in stabilizing PVC against UV exposure.

The Effect of NiTi Brush, Polishing Brush, and Chemical Agent on the Dental Implant Surface Morphology and Cytocompatibility.

To invitro investigate the effect of different implant surface decontamination methods and treatment storing conditions on implant surface morphology and cell viability. Titanium disks with a sand-blasted and acid-etched surface (Promote, PRO) were treated with diamond polishing brushes (BRUSH), nickel-titanium brushes (NITI), or phenol and sulfuric acid-gel (GEL). The disks were stored in saline (-S) or left exposed to air overnight (-A). Untreated (PRO) and machined (MACHINED) disks were used as controls. GEL samples were treated for the 60 s, while the operative time was recorded for BRUSH and NITI. The samples were subjected to scanning electron microscopy (SEM), surface roughness measurements, and cell viability (SaOS-2 cells, 7 days) assessment. The operative time was shorter for NITI than for BRUSH (p = 0.017). The original surface morphology (PRO) was not altered in the GEL group, in contrast with what was observed for BRUSH and NITI. The type of storage did not influence the surface morphology. No significant differences in Sa and Sz were observed among the groups, except for MACHINED, which presented lower Sa values (p < 0.05). Cells were able to proliferate on all surfaces. NITI-S showed significantly higher cell viability compared to all groups (p ≤ 0.001), except for NITI-A and MACHINED. Among the treated groups, only one additional significant difference was found, as NITI-A performed better than GEL-S. None of the investigated protocols compromised the cytocompatibility of the titanium dental implant surface. The best results were registered in the NITI group when the samples were stored in saline. Future studies should confirm the effectiveness of the proposed methods in removing bacterial biofilm from contaminated implant surfaces.

Study the effect of zinc oxide nanoparticles on degradation, antibacterial, thermal and morphological properties of polyvinyl alcohol films

Abstract In this study, a film was prepared from polyvinyl alcohol (PVA) and zinc oxide (ZnO) nanoparticles (nano-ZnO) via the casting method. Nanoparticles were added to PVA biopolymer to create reinforced biocomposite films with different loading contents (2, 4, and 6 wt.%), and they were tested by performing the following assays: the FTIR test, the antibacterial, soil burial test, DSC, AFM, and SEM. The results showed an improvement of the membranes in the antibacterial properties for both Escherichia coli (E. coli, Gram-negative) and Staphylococcus aureus (S. aureus, Gram-positive) when nano-ZnO was added. The biodegradation through weight loss was observed for all samples, and the results showed that the weight loss increased with the increase in ZnO nanoparticle content from 2% to 6% wt. The DSC results showed that the addition of ZnO led to an increase in Tg, and increasing the degree of glass transition led to an increase in the degradation rate. In the FTIR results, only physical interference was observed; no chemical interference was evident. The AFM results showed some agglomerations of nano-ZnO in the PVA matrix led to an increase in the surface roughness of the PVA/nano-ZnO film.

Crosslinked lignin starch copolymer as a sustainable and thermally stable drilling fluid controller

Fluid loss is a well-known challenge of drilling operations. In this work, a novel sustainable starch-lignin-based polymer was synthesized for possible use in drilling fluid applications. The X-ray photoelectron spectroscopy (XPS) analysis confirmed that kraft lignin was crosslinked with starch via ether covalent bonds. The X-ray diffraction (XRD) analysis confirmed the loss of crystallinity in starch and emerging of new amorphous structures in crosslinked starch-lignin (CSL) polymers after crosslinking with lignin. The incorporation of lignin and new covalent ether bonds improved the thermal stability of starch. The CSL had a rougher surface morphology, higher hydrophilicity, and significantly higher water absorption than starch. CSL-2, with its higher lignin content, demonstrated higher hydrophilicity, better water absorption capacity, and thermal stability than CSL-1. The rheology analysis of the CSL-2 polymer suggested that crosslinking starch with lignin would increase G′ more than G" and reduce tan δ of the polymer solution, resulting in more elastic properties and more stability against the angular frequency. Due to its improved swelling, thermal, and rheological properties as compared to native starch, the produced sustainable lignin-starch copolymer could be used as a new viscosity and rheology modifier, such as a fluid loss controller for oil extraction from wells.

Nonlinear optical characterization of opaque and scattering media: from rough surfaces to powder

Nonlinear optical characterization of opaque and scattering media: from rough surfaces to powder

A comparative study of strength and surface properties of permanent 3D-printed resins with CAD-CAM milled fixed dental prostheses.

To compare the strength, surface roughness, and hardness of newly introduced permanent three-dimensional (3D)-printed resin in comparison with computer-aided design and computer-aided manufacturing (CAD-CAM) milled materials. Three 3D-printed resins (NextDent C&B, Formlabs Permanent Crown, and VarseoSmile Crownplus) and two CAD-CAM milled (IPS e.max ZirCAD LT and VITA Enamic) resins were used to fabricate discs specimens. A total of 200 disc specimens were fabricated according to manufacturer recommendations. Within each group, half of the specimens were subjected to thermal cycling (5°C-55°C, the 30s, 5000 cycles). Aged and nonaged specimens were evaluated for biaxial flexural strength (BFS), surface roughness, and hardness. Results were statistically analyzed using analysis of variance (ANOVA) and t-tests (α=0.05). Significant differences (p<0.05) were observed in the BFS, surface roughness, and hardness between the 3D-printed and milled groups, before and after thermal aging. Overall, the CAD-CAM milled ceramic group had superior strength, surface roughness, and hardness when compared to all other groups (p<0.001), except for surface roughness after thermal aging, which was similar in all groups (p=0.063). Within each group, there was no significant difference (p>0.05) in surface roughness after thermal aging. BFS values of 3D-printed materials were statistically similar. In terms of surface roughness, Formlabs specimens displayed the highest value before and after thermal cycling, when compared to other 3D-printed materials. Regarding hardness, the VarseoSmile Crown plus group demonstrated the highest values compared to other 3D-printed materials, before and after thermal cycling. Permanent 3D-printed resins have lower strength than CAD-CAM milled materials. 3D-printed permanent resin materials exhibited high roughness and comparable hardness to CAD-CAM materials. Thermal aging negatively affected the properties of 3D-printed permanent crowns. Owing to the low strength of 3D-printed permanent resins, they may not be recommended for clinical practice until further improvements in flexural strength are made to meet clinical standards.

Surface properties and biofilm formation on resins for subtractively and additively manufactured fixed dental prostheses aged in artificial saliva: Effect of material type and surface finishing

Statement of problemAdditive manufacturing (AM) and subtractive manufacturing (SM) have been widely used for fabricating resin-based fixed dental prostheses. However, studies on the effects of material type (AM or SM resin) and surface finishing (polishing or glazing) on the surface properties and biofilm formation are lacking. PurposeThe purpose of this in vitro study was to investigate the effects of material type and surface finishing on the surface roughness, wettability, protein adsorption, and microbial adhesion of the AM and SM resins marketed for fixed restorations under artificial saliva-aged conditions. Material and methodsDisk-shaped specimens (∅10×2 mm) were fabricated using 3 types of resins: AM composite resin with fillers (AMC), AM resin without fillers (AMU), and SM composite resin with fillers (SMC). Each resin group was divided into 2 subgroups based on surface finishing: polished (P) and glazed (G). Therefore, 3 polished surface groups (AMCP, AMUP, and SMCP) and 3 glazed surface groups (AMCG, AMUG, and SMCG) were prepared. Specimens were then categorized according to aging condition in artificial saliva. Surface roughness (Ra and Sa), contact angle, surface free energy (SFE), protein adsorption, and microbial adhesion were measured. The data were analyzed using a nonparametric factorial analysis of variances and post hoc tests with Bonferroni correction (α=.05). ResultsWhen nonaged, significant interactions between material type and surface finishing were detected for Ra, contact angle, SFE, protein adsorption, and microbial adhesion (P≤.008). AMCP showed higher Ra and microbial adhesion than AMUP and SMCP, and higher contact angle and protein adsorption than SMCP (P<.001). AMCG had lower SFE than AMUG (P=.005) and higher bacterial adhesion than SMCG (P<.001). AMC had higher Sa than AMU and SMC (P≤.006). When aged, significant interactions between material type and surface finishing were detected for Ra, Sa, protein adsorption, and microbial adhesion (P≤.026). The contact angle and SFE were significantly affected only by the material type (P≤.001), as AMC exhibited higher wettability than SMC (P≤.004). AMCP had higher Ra and microbial adhesion than AMUP and SMCP (P≤.003). AMCP had higher Sa and protein adsorption than SMCP (P≤.004). AMCG showed lower Ra and higher protein adsorption than AMUG (P≤.001). ConclusionsBoth material type and surface finishing significantly affected surface properties and biofilm formation. AMCP exhibited higher surface roughness, protein adsorption, and microbial adhesion compared with SMCP. Glazing may reduce the differences in surface-biofilm interactions between AMC and SMC.

Modeling &amp; optimization of Ti6Al4V turning for sustainable shearing considering rake angle

Titanium alloys, such as Ti6Al4V, have become increasingly prevalent in aerospace and biomedical industries owing to their exceptional mechanical properties and corrosion resistance. However, the machining of these alloys presents significant challenges including high tool wear, poor surface finish, and low productivity. This study focused on enhancing the machinability of Ti6Al4V during CNC turning using the Taguchi optimization method. This approach aims to identify the optimal cutting parameters that minimize the surface roughness, flank wear, and crater wear, thereby improving the overall machining performance. This study systematically investigated the influence of various cutting parameters on machining outcomes. The experimental results demonstrate that the Taguchi method effectively determines the optimal process parameters, leading to a significant reduction in surface roughness and tool wear. These findings highlight the potential of the Taguchi optimization technique for achieving improved machinability and sustainability in the machining of Ti6Al4V.

Электрофизические характеристики сегнетоэлектрических пленок оксида гафния и титаната бария стронция

Electrophysical properties of hafnium oxide (HfO2) and barium strontium titanate of the composition (BST) thin films of various thicknesses from 20 nm to 250 nm are studied. Capacitance-voltage characteristics of Ni/HfO2/Si and Ni/BST/Si structures have been measured. The hysteresis loops width values are obtained depending on the films thickness. It is shown, that as the films thickness increases, the surface roughness and grain size increase. Calculated the exponential growth index values were β = 1.4 for HfO2, and β = 0.5 for BST films. Based on the local hysteresis loops results obtained in the polarization switching spectroscopy mode, coercive field values for studied films of various thicknesses were calculated, and «scaling» effect was found. It has been found that BST films are more ferroelectric «soft» material compared to HfO2 films at the same thicknesses.

The effect of surface roughness and carburized depth on wear resistance in 16MnCr5 case hardening steel

Purpose Today, wear and tear is a metaphor whose cost cannot be ignored by real sector. For this reason, many sectoral and academic studies are carried out to minimize the wear effect. This study aims to create a perspective against wear problems for the automotive industry as well. Design/methodology/approach The 16MnC5 material, which is used as the U-joint material in the powertrain of the automotive industry, was subjected to heat treatment such as normalization and carburization at certain temperatures and duration. By subjecting the resulting carbide thickness to the abrasion process, the maximum effective heat treatment parameters against wear were determined. Findings It has been determined that the ideal cementation condition for 16MnCr5 steel to be used in the wear system is carburized samples at 900 °C for 3.5 h with a hardness depth of 1.04 mm. Originality/value The variation in which the surface hardness thickness and surface roughness obtained by different heat treatment variations of the U-joint part, which is one of the cardan shaft components that provide power transmission of heavy commercial vehicles, show the best wear resistance, were investigated. As a result of this study, the study is to prevent the waste of limited materials in the world and to reduce the repair and maintenance costs of commercial vehicles. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2024-0152/

Novel solar absorber from cement industry waste

Solar radiation harvesting is a global imperative that requires the development of effective solar absorbers. The current work focuses on the development and testing of solar absorbers using glass derived from industrial cement waste. Glass samples were prepared experimentally by combining 25 % cement plant waste with 75 % silica sand and additives. To increase absorptivity and reduce transmittance, cobalt (at 0.2 % and 0.4 % by weight) and basalt (at 10 %, 20 %, 30 %, and 40 % by weight) were added as additives to reduce transmissivity of the glass. The effects of various additives, as well as variations in surface roughness, on optical properties were examined. Adding basalt found to be more effective than cobalt in improving the optical characteristics and hardness of the glass. With 20 %–40 % basalt, absorptivity increased significantly to 98 %, while emissivity was around 4.4 % and transmittance was minimal at around 0.2 %. Furthermore, the polished glass had better optical qualities than the roughened glass. The samples were investigated and characterized using analytical techniques such as X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), and differential thermal analysis (DTA). The transformation temperatures from amorphous to crystalline structure of glass containing 30 and 40 % basalt were determined. Accordingly, the glass containing 40 % basalt was heat treated at 900 °C for 2h leading to crystallization of the glass. The absorptivity decreased to 97 % and the emissivity increased to 6 %. The results indicate that the glass with 40 % basalt addition is an excellent low-cost candidate for solar absorber manufacturing.