Ceramic Particles Research Articles

Effect of Adding Al2O3 Ceramic in Wire Arc Additive Manufacturing 308LSi Stainless Steel

Wire Arc Additive Manufacturing (WAAM) is a process that allows for efficient in-situ production of components or remanufacturing based on its capabilities to produce at a greater rate of deposition at a lower cost. However, WAAM components suffer from heat dissipation during the deposition process that causes the growth of coarse columnar grains resulting in poor mechanical properties that will limit industrial applications. Thus, this research investigates the role of introducing Al2O3 ceramic powder particle inoculants to the AWS A5.9 ER308LSi stainless steel wall structure to enhance the mechanical performance capabilities by refining the grain process. During deposition, the Al2O3 ceramic powder particle was manually added to each layer when the temperature drops to 150ᵒC. A complete series of tensile testing was executed to bridge those knowledge gaps. WAAM walls were fabricated and the microstructure of the sample were analysed. The results revealed that the highest tensile strength of WAAM SS308LSi components recorded at 560 MPa in the deposition direction, which increased by 6% compared to the non-inoculated sample. The improvement was due to the success of grain refinement and heterogeneous nucleation. The study demonstrates the potential of the technique to improve the mechanical properties and microstructure during WAAM components fabrication or remanufacturing.

Fracture behavior of brittle particulate composites consisting of a glass matrix and glass or ceramic particles with elastic property mismatch

The aim of this work is two-fold: i) elaborating dense and transparent inorganic glass composites with improved fracture properties, and ii) testing the theoretical analysis proposed in [1] and based on Poisson's ratio mismatch. Particulate composites, consisting of glass or ceramic particles embedded in a soda-lime-silica glass matrix, were synthesized and their fracture behavior was studied by means of the Single Edge Precraked Beam (SEPB) and Double Cantilever Drilled (DCDC) methods, using in situ experiments with X-ray tomography where possible. An important effect of the T-stress on the fracture toughness (KIc) was observed in the case of DCDC exdperiments. KIc is increased by about 40 % by incorporating 7 vol. % amorphous silica beads or SrAl2O4:Eu,Dy ceramic particles (SAED) with a 40 μm mean particle size. It is suggested that toughening results from the crack front trapping and pinning at particle sites and from the tortuous crack path in the case of a-SiO2 particles, and from the contribution of the intrinsic fracture surface energy of the ceramic particles, which are cleaved by the propagating crack, in the case of the SAED particles. The thermally induced stress field is believed to play a major role in the case of a-SiO2 particles. Two glass grades possessing Young's moduli similar to the one of the matrix but much larger Poisson's ratios were used to produce glass beads. However, the incorporation of these latter beads in the matrix was found to have a minor incidence on the fracture behavior.

Improvement of the nylon (N)-glass fiber (G) reinforced polyester composite properties by varying oxide ceramic particles and stacking sequences of N and G

Abstract This study investigated the mechanical and physical properties of hybrid composites made with nylon fiber mesh (N), woven glass fiber (G), and unsaturated polyester (UPE) resin filled with different oxide ceramic particles (CPs) (ZnO, Al2O3, ZrO2, and TiO2). The influence of the stacking order of N and G (GGNNGG, GNGGNG, NGGGGN, and NNGGGG) on the mechanical properties of the composites was also studied. The goals of this study are to determine the best CP and stacking sequence for enhancing composite properties (flexural and impact properties) and reducing water absorption. The composites were manufactured in two steps using hand lay-up and press molding techniques. The first step involved fabricating N/G/UPE-2%CPs composites with a ratio of 8:14:78 (vol%) and a GNGGNG stacking sequence, referred to as type 1. In the second step, a composite with optimum properties obtained from type 1 was used as a reference and compared to composites with three different stacking sequences of GGNNGG, NGGGGN, and NNGGGG, known as type 2. The three-point bending, Charpy impact, and water absorption tests were conducted. The results revealed that the mechanical properties of N/G/UPE-2Al2O3 and N/G/UPE-2ZnO composites are nearly identical and higher than the others. However, N/G/UPE-2Al2O3′s water absorption is lower than that of N/G/UPE-2ZnO. These results suggest that the N/G/UPE-2Al2O3 composite, with a GGNNGG stacking pattern and a flexural strength of 125.12 MPa, an impact strength of 84.2 kJ m−2, and a low water absorption of 0.56%, could potentially serve as biomaterials.

Microstructure and mechanical performance of the YSZ/Al2O3 hybrid surface composite on AZ31 Mg alloy by friction stir processing

Abstract This study aims to fabricate the hybrid yttria-stabilized zirconia (YSZ)/Al2O3 surface composite on the AZ31 magnesium (Mg) alloy through friction stir processing (FSP). The base alloy center surface was turned to provide a 1 × 2 mm groove to fabricate the friction-stirred surface composite using the tapered cylindrical tool. The microstructural and mechanical behavior of the hybrid surface composite (FHSC) results were compared with the Al2O3-reinforced surface composite (FASC), the FSP-treated sample, and the base alloy. In terms of microhardness performance, the FHSC exhibits a 10% improvement over the FASC, a 32% improvement over the FSP treated alloy, and a 95% improvement over the base alloy. Additional FHSC samples exhibit improved impact resistance of around 30% over the FASC, 81% over the FSP treatment, and 226% over the base alloy. Furthermore, FHSC samples outperform FASC by about 15%, FSP-treated alloys by 59%, and base alloys by 95% in terms of tensile strength augmentation. This is due to the synergistic effects of both Al2O3 and YSZ particles, which significantly strengthen the interfacial bonding between the matrix. This results in substantially enhanced interface adhesive behavior between the base alloy and ceramic particles and leads to enhanced mechanical characteristics.

Multi-stage load partitioning in additively manufactured Al6061+TiC nanocomposite characterized by in-situ neutron diffraction

Metal matrix composites (MMCs), combining metal matrix and ceramic particles, exhibit high mechanical strength and stiffness compared to conventional metallic materials. During fusion-based additive manufacturing (AM), MMCs undergo a rapid heating and cooling thermal history, which affects the interfacial bonding, thermal misfit stress and mechanical load transfer behavior between the metal matrix and particles, thus impacting the bulk mechanical performance. Here, we investigate the deformation dynamics and phase-specific load transfer in fusion-based AMed Al6061+TiC MMCs through in-situ neutron diffraction. By calculating the phase-specific lattice strains, a multi-stage load transfer and deformation behavior during uniaxial compression is revealed: (1) elastic deformation in Stage I for both phases; (2) sudden stress rebalance between two phases in Stage II, evidenced by a sudden decrease in Al lattice strain and increase in TiC; (3) active load carrying by both phases in Stage III, with both phases experiencing an increase in lattice strains. The deformation mechanism of each stage is deducted by correlating the evolutions of the interphase stresses and peaks’ broadening and intensity of the Al matrix. The local plastic deformation of the Al matrix near the phase interface is triggered and leads to stress rebalancing in Stage II. The global plastic deformation subsequently propagates throughout the Al matrix in Stage III, and the composite is further hardened through both dislocation multiplication and load transfer. The findings offer valuable insights into deformation and load-sharing behavior in AMed MMCs.

Fabrication and characterization of Al alloy composites reinforced with nanocrystalline Al4CrFeMnTi0.25 high-entropy alloy particles via double ultrasonic stir casting for aerospace applications

The aim of the present work is to fabricate the Al alloy-based composites by using a new class of High Entropy Alloy (HEA) reinforcement particles for aerospace applications, addressing the limitations associated with traditional ceramic reinforcement particles. Therefore, the present work is to fabricate an Al-7150 alloy-based composite by incorporating a novel nanocrystalline Al4CrFeMnTi0.25 HEA (NCHEA) reinforcing particle (0.5, 1, 1.5 and 2 wt%) through a double ultrasonic two-step stir casting technique. The relative density decreases with the addition of NCHEA particles in the mixture, however, the porosity remains below 5 % due to double ultrasonication. The grain size was significantly refined with the addition of NCHEA particles. The AA7150-HEA composite exhibits a “stone in mud” structure in which the HEA particles (stone) are embedded in an aluminum matrix (mud) due to the high density of NCHEA reinforcement. The AA7150–1.5 wt% HEA composite exhibited a small average crystallite size of 27.03 nm and a maximum dislocation density of 2.67 nm-2 analysed by X-Ray Diffraction (XRD) analysis. The AA7150–1.5 wt% HEA alloy achieved a maximum Vickers microhardness of 214.49 HV and an ultimate tensile strength of 218.37 MPa, which were 37 % and 27.5 % higher, respectively, compared to the base Al-7150 alloys. Failure usually occurs at the interface where the alloy is bonded to the ceramic reinforcement, however, in the HEA-reinforced composite, this fall-off action does not occur as observed by fractographic analysis. Nonetheless, Al7150–2wt% HEA-composites have many cracks on the fractured surface due to the agglomeration of NCHEA particles in composite. The NCHEA reinforcement particles can be incorporated into the Al7150 matrix as an alternative to ceramic reinforcements, enabling enhanced strength improvement.

Optimization of Structural, Dielectric, and Electrical Properties in Lead-free Ba0.85Ca0.15Zr0.1Ti0.9O3 through site engineering for Biocompatible Energy Harvesting

Piezoelectric energy harvesting has recently gained attention due to its high power density and potential for self-powered sensor networks. This study investigates the effects of dopants on Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) ceramics, examining Strontium (Sr2+), Zinc (Zn2+), and praseodymium (Pr3+/4+) ions at different sites and their impact on structural, dielectric, and electrical properties. X-ray diffraction and Rietveld analysis reveal a coexistence of tetragonal and rhombohedral/orthorhombic phases, with a predominant tetragonal phase, confirmed by Raman analysis. Energy-dispersive X-ray spectroscopy ensures chemical homogeneity. The density measurements indicate a dense microstructure with a relative density of 90-95%. Dielectric analysis shows a relaxor-like behavior in AB-site doped BCZT ceramics, validated by polarization-electric field hysteresis loops. B-site doped BCZT ceramics exhibit ultra-low leakage currents, approximately 103 times lower than undoped BCZT. An optimized biocompatible flexible film-based energy harvester, incorporating A-site doped BCZT ceramic particles, demonstrated impressive energy harvesting capabilities. A simple finger tapping generated ~80.2V and ~18.2nA, with an average peak-to-peak power density of 7.6 µW-cm-3. These results highlight the significant potential of dopant inclusion in BCZT ceramics, marking a major advancement in doping strategies for piezoelectric energy harvesting in miniature electronics.

Enhancement of high-entropy alloy coatings with multi-scale TiC ceramic particles via high-speed laser cladding: Microstructure, wear and corrosion

Enhancement of high-entropy alloy coatings with multi-scale TiC ceramic particles via high-speed laser cladding: Microstructure, wear and corrosion

Interfacial Microstructures and Mechanical Properties of TiC Reinforced GH 3230 Superalloy Manufactured by Laser Metal Deposition

GH 3230 superalloy is a solution strengthening nickel-based superalloy and it is commonly used for fabricating hot components with the service temperature of above 900 ℃. In order to further improve high-temperature performance, nickel-based alloy matrix composites (NMCs) were proposed. Meanwhile, it is known that laser additive manufacturing is an optional method for fabricating nickel-based composites. However, the research on ceramic-reinforced GH 3230 fabricated by laser metal deposition (LMD) are highly lacking. The aim of this study is to develop TiC ceramic particle reinforced GH 3230 composites using laser metal deposition (LMD) method and study the effect of TiC content on their microstructure and tensile properties. The results showed that TiC particles not only changed the intensity and position of the X-ray diffraction peaks of the alloy matrix but also had a significant effect on the refinement of the cellular dendrites. Meanwhile, it was found that an interfacial layer with sub-micrometer thickness was formed between the TiC ceramic particle and the superalloy matrix, which was identified to be (W, Ti)C1-x phase by the TEM. In terms of the as-built composites, the ultimate tensile strength (UTS) and yield strength (YS) gradually increased, but elongation (EL) decreased with the increase of TiC content. For the as-LMDed 10 vol.% TiC/GH3230 composites, UTS and EL reached 1077.0 MPa and 12.4%, respectively. The enhancement of the tensile strength for composites was attributed to the combined effect of grain refinement strengthening, Orowan strengthening, dislocation strengthening and loading-bearing strengthening.

Multi-Response Optimisation of Wear Behaviour of Epoxy Composites Reinforced with Metallic and Ceramic Particles Using Taguchi-Grey Method

In this work, a multi-response optimization technique has been used to optimize the process parameters considered while conducting the wear tests of fabricated particle-reinforced epoxy composites. The paper signifies the effect of CaSiO3 and WS2 particles reinforced epoxy composite’s performance at different filler wt.% (2 wt.% CaSiO3 and 1, 2.5, 4, 5.5 and 7 wt.% WS2), load (30-70 N), and sliding distance (400-2000 m) parameters that are considered while conducting friction and wear tests. Experiments were conducted on a pin-on-disc configuration using an L25 OA through Taguchi's design of experiment for a constant time of 15 min. The results showed that the inclusion of particles improved the material's friction and wear resistance. The optimal combination of parameters was obtained with Taguchi-GRA followed by determining the most influencing factor using the ANOVA tool. The ANOVA tool calculates the percentage contribution of the process parameters. The wear behaviour was optimized to achieve the lowest coefficient of friction and specific wear rate. At a sliding distance of 2000 m and 15 min testing duration, the combination of parameters that yields the best result is a filler content of 2 wt. % CaSiO3 and 5.5 wt. % WS2, along with a load of 70 N. The ANOVA results reveal that the load with a percentage contribution of 50.87% is the most significant parameter followed by filler content (15.63%) and sliding distance (13.55%). A confirmation test is carried out using the optimal control parameters to validate the experimental results. Additionally, the SEM was used to analyse the worn surfaces of epoxy composites. The SEM images reveal the adhesive and abrasive wear mechanism is most prevalent in the observed material.

GEOMETRICLY NONLINEAR BENDING OF FUNCTIONAL-GRADIENT SHALLOW SHELLS ON AN ELASTIC FOUNDASHION

The paper considers the problem of geometrically nonlinear bending of shallow elements of structures made of functional gradient materials (FGM) under the influence of various transverse loads. The shallow shells under consideration can have arbitrary plan shapes and be in contact with an elastic base of the Winkler-Pasternak type. The mathematical formulation is made within the framework of classical geometric-nonlinear theory. To linearize the nonlinear system of differential equations of equilibrium, the sequential load method in combination with Newton's method is used. The effective mechanical properties of FGM vary along the thickness and are calculated according to the power law. The use of the theory of R-functions made it possible to build the necessary systems of coordinate functions for shells with arbitrary geometry and support conditions. The proposed approach is implemented in software, tested, and applied to solve the problems of bending shallow shells of complex plan shapes with holes. The influence of the elasticity coefficients of the base, the gradient index in the distribution of metal and ceramic particles, as well as other parameters on the deflections of structural elements, was studied.

Sensing capability of molten salt synthesize (K, Na) NbO3 ceramic powder

At room temperature, K0.5Na0.5NbO3 ceramic particles were tested for sensing. This study synthesized K0.5Na0.5NbO3 particles using molten salts. X-ray diffraction and scanning electron microscopy were employed to understand the material. The gas-sensing properties of a novel material family are greatly improved. Sodium potassium niobate granules detect ammonia at room temperature. This material offers excellent temporal sensitivity and a quick response. The sample has oxygen shortages, according to Photoelectron X-ray spectroscopic investigations.

PTHF/LATP Composite Polymer Electrolyte for Solid State Batteries.

The novel crosslinked composite polymer electrolyte (CPE) was developed and investigated using polytetrahydrofuran (PTHF) and polyethyleneglycol diacrylate (PEGDA), incorporating lithium aluminum titanium phosphate (LATP) particles and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salt. Composite polymer electrolytes (CPEs) for solid-state lithium-ion batteries (LIBs) were synthesized by harnessing the synergistic effects of PTHF crosslinking and the addition of LATP ceramics, while systematically varying the film composition and LATP content. CPEs containing 15 wt% LATP (PPL15) demonstrated improved mechanical strength and electrochemical stability, achieving a high conductivity of 1.16 × 10-5 S·cm-1 at 80 °C, outperforming conventional PEO-based polymer electrolytes. The CPE system effectively addresses safety concerns and mitigates the rapid degradation typically associated with polyether electrolytes. The incorporation of PEGDA not only enhances mechanical stability but also facilitates lithium salt dissociation and ion transport, leading to a uniform microstructure free from agglomerated particles. The temperature-dependent ionic conductivity measurements indicated optimal performance at lower LATP concentrations, highlighting the impact of ceramic particle agglomeration onion transport pathways. These findings contribute to advancing solid-state battery systems toward practical application.

Evaluation of ZrB2/SiC coating for high-temperature alloy under high-energy laser

Although ZrB2/SiC coating has been widely used in high-temperature protection, it remains unclear whether it can be applied in high-energy laser protection. In this study, ZrB2/SiC spherical powder was synthesized, and ZrB2/SiC coatings were deposited on the surfaces of high-temperature alloys via atmospheric plasma spraying. Laser ablation tests were conducted on the ZrB2/SiC coatings. The results indicated that laser parameters, such as irradiation time and laser power density, significantly influenced the phase composition and morphology of the coating. Due to the high temperatures induced by the laser, the ZrB2/SiC coating oxidized rapidly, generating various glass and ceramic phases. As the temperature rose further, the glass phase content increased, encapsulating ceramic particles until vaporization occurred. The ceramic particles experienced partial sintering, which enhanced the coating’s reflectivity. During laser ablation, the vaporization of the glass phase dissipated heat, while the sintering of the ceramic phase increased reflectivity, both of which contributed to improved laser protection performance.

Manufacturing Aluminum-Based Nanocomposites via Stir-Squeeze Casting Combined with Ultrasonication

This study successfully produced aluminum nanocomposites using a stir-squeeze casting process, both with and without ultrasonication (US) assistance. The matrix material utilized was scrap automobile wheel aluminum alloy (A356), with 1% SiC nano particles, averaging a size of 40 nm, serving as the reinforcement material. A comparison was made by also producing A356 aluminum casts with and without the use of US. The produced casts underwent thorough chemical and mechanical characterization, including optical and scanning microscopy, porosity measurement, hardness measurement, compression and tensile testing, as well as wear testing. Additionally, energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analyses were conducted to assess compositions and confirm the presence of SiC nano particles in the aluminum matrix. Porosity levels were slightly higher in the nanocomposite samples compared to pure matrix samples, attributed to the tendency of pore formation due to improper distribution of ceramic particles, resulting in clustering and agglomeration. However, significant reduction in porosity was observed with the application of ultrasonication, effectively breaking up clusters and agglomerations of reinforcement particles. Regarding mechanical properties, the A356+SiC sample with US exhibited the highest hardness (70.8 HRB), tensile strength (163.25 MPa), and compressive strength (387.2 MPa), along with the lowest abrasive wear loss (0.0017 g) among all types of casts produced in this study.

Fibrous‐biocomposites scaffold of natural rubber with bioactive glass–ceramic particles obtained by solution blowing spinning

AbstractBioactive glass‐ceramics (BGs) are widely used in clinical applications due to their excellent biodynamic and biological properties, though their low mechanical strength limits their use in load‐bearing contexts. This study aimed to develop fibrous biocomposite scaffolds based on natural rubber (NR) reinforced with BG particles, such as biosilicato (BioS) and 45S5‐K (BL0), to improve tensile strength, biocompatibility, and bioactivity for biomedical applications, such as tissue engineering. Morphological, tensile, thermal, and biological tests were conducted to evaluate the impact of BG particles on the NR fibrous matrix. TG/DTG analysis revealed similar decomposition profiles for NR/BioS and NR/BL0 biocomposites compared to NR mats, with primary degradation occurring in the 290–450°C range. Tensile tests demonstrated that the addition of 30 mass% BioS or BL0 enhanced the ultimate tensile strength (σbreak) of the NR matrix from 1.44 ± 0.08 to 3.38 ± 1.31 MPa (NR/BioS) and 1.97 ± 0.53 MPa (NR/BL0). The Cole–Cole plot indicated system heterogeneity and strong NR‐BG particle interactions. Cytotoxicity tests revealed over 70% MSC viability for NR, NR/BioS, and NR/BL0 biocomposites, meeting ISO 10993‐5:2009 standards. These findings suggest that incorporating BioS and BL0 enhances the mechanical and biological properties of NR‐based scaffolds, making them suitable for biomedical applications, such as bone regeneration.

Microstructure control of ultra-high-strength AlZnMgCu alloys fabricated by wire arc directed energy deposition: the role of variable polarity electric pulse

ABSTRACT In the manufacturing of large-scale ultra-high strength AlZnMgCu alloy components, wire arc directed energy deposition can be an efficient and flexible candidate. However, the fabricated AlZnMgCu alloys are faced with problems like coarse microstructures and high sensitivity to defects. Although metallurgical methods like micro-alloying and ceramic particle addition have shown considerable effects in microstructural control, pure process control methods that don’t affect the composition still lack investigation. This work proposed an effective control method by simply adding electric pulses during manufacturing. Results show that the application of pulses significantly reduces pore defects. A 2 Hz pulse can reduce the porosity by 65.7% to 0.122%. Low-frequency pulses effectively promote grain refinements. At 2 Hz, the deposited metal exhibited a mix of short columnar and fine equiaxed grains with a near-random orientation. Applying electric pulses leads to at least a 4.8% increase in UTS and a 225.0% increase in elongation.

Impression creep behavior of extruded Mg–TiO2 composites prepared by powder metallurgy

Magnesium (Mg) composites with ceramic fillers are considered favorable for their recyclability compared to Mg alloys for lightweight designs with high creep resistance. In this work, we studied the difference in impression creep properties of pure magnesium and its composites, which contained 2, 3.5, and 5 vol% of submicron TiO2 particles. For each composition, samples were fabricated by hot extrusion after hot pressing of the cold-compacted powders. Creep tests were conducted at temperatures in the 423–473 K range and under stress levels in the 125–275 MPa range. The results showed that the composites had higher creep resistance than pure magnesium, and increasing TiO2 content improved their creep behavior under all testing conditions. The effect of TiO2 content on grain size was statistically insignificant, and therefore, the improvement was attributed to reinforcing ceramic particles, which reduce the creep load on the magnesium matrix. The Dorn model was used in a new approach to calculate the effective stress on the magnesium matrix, justifying composites' higher creep load-bearing capacity than pure Mg under studied creep conditions. Fitting the Dorn exponential equation to creep data revealed that the stress exponent was between 6.6 and 8.6, and the activation energy was between 90.1 and 95.2 kJ/mol for all compositions. Therefore, it was inferred that pipe diffusion-controlled dislocation climb was the creep mechanism for the studied materials.

Preparation of iron-based composites reinforced with submicron/nano-sized TiC ceramic particles by in-situ reaction in melts and one-step integrated hot pressing densification

The iron matrix composites strengthened with submicron/nano-sized TiC particles dopping with different alloying elements (Mo, Ni) were prepared by melt-in-situ reaction and one-step integrated hot compaction. The results indicate that the incorporation of Mo and Ni through alloying treatment can refine ceramic particles, and thus lead to a significant improvement in the uniformity of the microstructure. The mismatch between the TiC and α-Fe is significantly reduced and the interface stability is enhanced. The yield strength of 1904 MPa and maximum compressive strength of 2605 MPa of TiC/Fe composite with the addition of 4 wt.% Mo are 28.3 % and 23.9 % higher than those without alloying elements, respectively. The yield strength of 2032 MPa and maximum compressive strength of 2815 MPa of TiC/Fe composite with the addition of 2 wt.% Ni are 36.9 % and 33.9 % higher than those without alloying elements, respectively. First-principles calculation results indicate that Mo atoms tend to accumulate at the interface, while Ni atoms can easily substitute Fe atoms, resulting in the formation of a FeNi solid solution. The primary strengthening mechanisms of TiC/Fe composites dopping Mo are the refinement strengthening of ceramic particles. The interface bond between Fe matrix and TiC particles is also strengthened. The addition of Ni primarily leads to solid solution strengthening and grain refinement. This TiC particle manipulating strategy within Fe melt can effectively optimize the corresponding interfacial bonding, lead to comprehensive improvement in property, and finally realize the expanding application at specific wear locations.

Promotion of fluorescence and temperature sensitive properties for 8YSZ:Eu3+ thermo-sensitive ceramic powders by nitrogen-modified Ti3C2Tx MXene

Fluorescence temperature measurement technology offers a promising approach for real-time monitoring of internal temperature in thermal barrier coatings (TBCs). However, under high-temperature and corrosion environments of TBCs, luminescent materials experience substantial challenges, including reduced fluorescence intensity, shortened decay lifetime and diminished temperature sensitivity. In this paper, nitrogen modified Ti3C2Tx MXene (N-MXene, Tx represents -O, -OH, -F, and -N functional groups) was prepared and mechanically grounded with Eu-doped 8 mol% yttria-stabilized zirconia (8YSZ:Eu3+, Zr0.92Y0.08O1.96: Eu3+) ceramic materials to produce N-MXene/8YSZ:Eu3+ composites, enhancing the fluorescence and temperature sensitive properties of Eu3+. Results showed that homogenous N-MXene/8YSZ:Eu3+ composites with uniformly distributed Zr, Y, O, Eu, Ti, C, F and N elements were successfully synthetized. The 8YSZ:Eu3+ ceramic particles, with an average particle size of about 18 nm, were embedded within the porous, wrinkled structure of N-MXene. The addition of N-MXene did not alter the symmetry or electron transitions of Eu3+ but significantly improved luminescence intensity, fluorescence lifetime and temperature sensitivity of 8YSZ:Eu3+ powders. The optimal fluorescence characteristics were observed in composites containing 0.6 wt% N-MXene. The emission intensities for 5D0→7D1 and 5D0→7D2 transition were up to 7 times higher than those of pure 8YSZ:Eu3+ powders at room temperature and nearly 6 times higher at 500 K. The fluorescence lifetime of 8YSZ:Eu3+ powders were extended from 1.41 to 1.50 ms by N-MXene. The absolute and relative sensitivity of Y/NM-6 thermo-sensitive ceramic powders were SA (Y/NM-6) = 3.32 % K−1@350K, SR (Y/NM-6) = 0.32 % K−1@350K respectively, compared to SA (8YSZ:Eu3+) = 0.49 % K−1@350K, SR (8YSZ:Eu3+) = 0.16 % K−1@350K for 8YSZ:Eu3+. These findings demonstrate the N-MXene/8YSZ:Eu3+ composition is a potential thermos-sensitive ceramic with excellent fluorescence properties for monitoring service temperature in TBCs.