Properties Of Glass-ceramics Research Articles

Effect of ZnAl2O4 crystallization on ion-exchange properties in aluminosilicate glass

ZnAl2O4 nanocrystals (NCs) embedded transparent glass-ceramics containing relatively large amount of alkali oxide were prepared and effects of the crystallization on ion-exchange properties of glass-ceramics were investigated. Precipitation of ZnAl2O4 NCs not only improves the Vickers hardness of the glass-ceramics, but also reduces the content of zinc and aluminum with concomitant increase in the content of sodium in the residual glassy phase. These changes in the residual glassy phase decrease the activation energy of K–Na ion-exchange and enhance the diffusion coefficient of potassium, resulting in the large ion-exchange depth and significantly improved Vickers hardness of the ion-exchanged glass-ceramics. These results show that glass-ceramics containing non-alkali nanocrystals have promising applications in fields of covers for optoelectronic devices.

Effect of SiO2/Al2O3 ratio on the structure and electrical properties of MgO–Al2O3–SiO2 glass-ceramics doped with TiO2

Glass-ceramics of the MgO–Al2O3–SiO2 (MAS) ternary system were successfully prepared through a melting method with borax, quartz sand, and chemical reagents as the main raw materials. The effects of SiO2/Al2O3 ratios on the structure and properties of glass-ceramics were systematically investigated by differential thermal analysis (DSC), X-ray diffraction (XRD), scanning electron microscope (SEM), dielectric properties and electrical resistivity measurements. The results show that the average coefficient of thermal expansion (CTE) (30–800 °C) of all the samples increased with increasing of the SiO2/Al2O3 ratio, but the density of the glass-ceramics and the grain refinement decreased at the same time. The crystalline phase of all the samples was a prepared sapphirine phase when the SiO2/Al2O3 ratio was equal or greater than 1.78 and a second phase of enstatite precipitation. The electrical performance was the best when the SiO2/Al2O3 ratio was equal to 1.27, and its dielectric constant, dielectric loss, and electrical resistivity (room temperature) were 8.78 (1 MHz), 3.55 × 10−3 (1 MHz), and 10.57 × 10 11 Ω m, respectively.

Sinterability and mechanical properties of glass-ceramics in the system SiO2-Al2O3-MgO/ZnO

The sintering, crystallization and mechanical behavior of three glass compositions in the SiO2-Al2O3-MgO/ZnO system were investigated. Partial substitution of MgO by ZnO causes a decrease in Tg, a slight increase in the crystallization temperature and improves sinterability. Cordierite and enstatite were crystallized in bulk glasses heat treated at 1000 °C. Addition of ZnO resulted in the crystallization of cordierite, willemite and gahnite for the heat treated bulk glasses and cristobalite, enstatite, gahnite and willemite for the sintered glass powders. The first phase to crystallize is the β-quartz solid solution at 850−900 °C for all compositions. The glass and glass-ceramic with ZnO had the lowest hardness and elastic modulus. There was no variation of fracture strength with composition. The glass-ceramic with ZnO had a similar wear resistance in comparison to the composition with higher MgO content.

Study on glass-ceramics made from MSWI fly ash, pickling sludge and waste glass by one-step process

Municipal solid waste incinerated (MSWI) fly ash and pickling sludge contain heavy metals such as Cr, Pb, Ni, etc., which are harmful to the environment but also suitable to be the nucleating agents in glass-ceramics preparation. In this paper, MSWI fly ash, pickling sludge, and waste glass were melted at 1400 °C for 3 h, and the obtained parent glass was nucleated and crystallized at 800 °C for 0.5 h. Glass-ceramics was successfully prepared by the one-step process. The effects of the content of pickling sludge on crystalline properties of parent glass and the physicochemical properties of glass-ceramics have been systematically discussed. The gap between nucleation temperature (Tn) and crystallization temperature (Tc) can be narrowed with higher content of pickling sludge, which caused fracture of the glass network (Si-O) and generation of the nonbridging oxygen (NBO), promoting the formation of diopside phase. As a result, nucleation and crystallization can be finished at the same temperature, called one-step process. The sample PS22 with 22 wt% pickling sludge added performed the best crystallization ability for having the narrowest gap (ΔT = 177 °C) between Tc and glass transition temperature (Tg) and the highest ratio of NBO to total oxygen (T) (NBO/T = 1.72). The Vickers’ hardness and bending resistance of the products are 13.11 GPa and 135.84 MPa, respectively. The glass-ceramics are composed of homogeneously distributed diopside, donathite-spinel and glass phase. The toxic heavy metals are effectively stabilized by glass-ceramics. This study provides insights into more efficient and cleaner utilization of MSWI fly ash, pickling sludge and waste glass as glass-ceramic materials.

Effect of crystallization temperature on glass-ceramics derived from tailings waste

Abstract Sintered glass-ceramics containing CaO–Al2O3–SiO2 were successfully fabricated by application of sinter-crystallization process, with tungsten tailings waste (TTW) as main raw materials. Crystallization kinetics analysis showed that surface crystallization dominated the overall crystallization process and the ingredient of TTW was beneficial to the crystallization process. The effects of crystallization temperature on crystallization behavior and properties of glass-ceramics demonstrated that it played an important role in controlling the crystal growth and crystalline phase transition. With the increasing crystallization temperature to 1050 °C, part of the crystalline phase was transformed from wollastonite to anorthite. Also, the glass-ceramic fired at 950 °C for 2 h presented higher volumetric density (2.82 g/cm3), lower water absorption (0.09%), higher flexural strength (97.56 MPa), superior Vickers hardness (6.3 GPa), moderate acid resistance (0.18%), and lower alkali resistance (0.19%). Leaching tests performed on as-prepared glass-ceramics demonstrated that heavy metals were stabilized well in the newly formed phase. Overall, the glass-ceramics derived from TTW are promising for exploring high value-added products and vitrifying hazardous elements, as well as promoting their application in construction and environmental protection.

Effects of CaO/SiO2 ratio and heat treatment parameters on the crystallization behavior, microstructure and properties of SiO2-CaO-Al2O3-Na2O glass ceramics

The SiO2-CaO-Al2O3-Na2O glass ceramics were prepared by the melting-sintering method. For samples with a CaO/SiO2 ratio of 0.23, wollastonite was the only crystal phase after heat treatment for 2h in the temperature range of 800–1000 °C, and a maximum flexural strength of 99.39 MPa can be achieved at 900 °C. When the sintering time was extended from 2 h to 40 h at 800 °C, the metastable phase Na2CaSiO4 first appeared, but then disappeared as the heat treatment continued. The maximum hardness and flexural strength were achieved at the sintering time of 20 h in this case. Furthermore, when the CaO/SiO2 ratio was increased from 0.23 to 0.45 under the same heat treatment conditions (800 °C for 20 h), the main crystalline phase transformed from wollastonite to Na2CaSiO4, besides nepheline (NaAlSiO4) and SiO2. The existence of the nepheline enhanced the mechanical properties of glass ceramics.

Contribution of some transition metal oxides to crystallization and electro-thermal properties of glass-ceramics

Lithium di-silicate (LS2) glass-ceramics modified with copper oxide using the formula: 34.83Li2O–xCuO–(65.17-x)SiO2 (where; x = 1, 2, 4 and 6 mol%) were prepared by melt-quenching followed by controlling heat-treatment. 6 mol% of MnO or Fe2O3 transition metal oxides was added instead of SiO2 in the high CuO-content composition. The effect of the transition cations on phase formation, microstructure, density, thermal expansion, and electrical conductivity was investigated as a function of the controlled crystallization. Results show that up to 4 mol%, Cu+2 was hosted in stable Li2Si2O5 structure. This enhanced the crystal formation, including Li2Si2O5 and its solid solution (ss), Li2SiO3, Li2Cu5(Si2O7)2, CuMn6SiO12, LiFeSi2O6 (ss), and the orthosilicate Li2FeSiO4 (ss). The prepared materials had different density values ranged from 2.35 to 2.79 g/cm3 for glass and varied from 2.43 to 3.15 g/cm3 for glass–ceramics, whereas the α-values of glass-ceramics ranged in the 95–165 × 10−7/°C. The progress of electrical properties in glass-ceramics, as a function of composition, was studied. It was markedly improved by adding different transition cations especially, Fe+3. The study reveals that the incorporation of transition metal ions in LS2 composition has a positive effect on the physical-chemical properties of the prepared glass-ceramics. Therefore, it constitutes to prepare future glass-ceramic applications as hermetic seals of metals as well solid electrolyte materials.

Magnetic and Electrical Properties of Glass and Glass-Ceramics Based on Weathered Basalt

A total of six glass batches (WB100-WB50) based primarily on weathered basalt with successive addition of bypass cement dust (with the weight content 0–50%) were melted at 1450 °C and cast into glass specimens then crystallized into glass-ceramic through applying heat treatment at 1000 °C for 2 h. The dielectric constant (e’), dielectric loss (e”) and electric conductivity (σ) of both the glass and glass-ceramic samples were measured by applying the alternating current (AC) field and scanned at 1500 points in frequency range 50 Hz up to 7.5 MHz. A relatively high conductivity was assigned for the glass sample WB60 at the low frequency (50HZ) with value 1.85 μS/cm and for the glass-ceramic samples WB100 at higher frequencies (7.5 MHz) with value 3440 μS/cm. Besides, magnetic properties of the glass-ceramics were measured using a hysteresis magnetic loop technique up to 20 kg. The highest magnetization is assigned for samples WB100 and WB60 with value 3.074 and 2.914 emu/g, respectively; whereas the lowest values assigned for samples WB50 with value 0.209 emu/g. In order to achieve the best characterization of the obtained mixtures and to explain their electric and magnetic behavior as a function of the applied frequencies and magnetic field, various experimental techniques were applied in this study including, DTA, XRD, and SEM. The DTA indicated a gradual increase in the exothermic temperature by increasing the bypass content from WB100 to WB50. XRD analysis indicated that major crystalline phases are diopside, anorthite, wollastonite, gehlenite, magnetite and hematite. SEM indicated that the best crystal size is obtained for the samples WB60 and WB70.

Structure, crystallization mechanism, and properties of glass ceramics from molten blast furnace slag with different B2O3/Al2O3

Glass ceramics with different B2O3/Al2O3 from molten blast furnace slag (BF slag) were prepared using traditional melting, annealing, and heat treatment method. According to DSC analysis, the parent glass samples were nucleated at 760 °C for 1 h, and then respectively crystallized at 900 °C, 920 °C, and 940 °C for 1 h. The structure of parent glass was characterized using XRD, Raman spectra, 27Al MAS NMR spectra. The results indicated that with an increasing B2O3/Al2O3, Q2 remained dominant in the glass network, Q0 disappeared and Q4 existed when B2O3/Al2O3 was 0.21. [BO3] and [BO4] were both characterized when B2O3/Al2O3 exceeded 0.09, but the further addition of B2O3 was prior to form [BO3] in glass network. The investigation of crystallization mechanism revealed that the crystallization activation energy Ec strikingly decreased from 403.8 kJ/mol to 277.8 kJ/mol with increasing B2O3, and surface crystallization was determined due to that the crystallization index n was below 3. The results of XRD and SEM-EDS analysis both confirmed the main crystalline in glass ceramics was gehlenite. The flexural strength of glass ceramics reached the minimum when B2O3/Al2O3 was 0.21. Glass ceramics nucleated at 760 °C for 1 h and crystallized at 940 °C for 1 h exhibited the highest flexural strength of 57.61 MPa.

Effect of ZrO2 crystallization on ion exchange properties in aluminosilicate glass

Ion exchange has the potential to improve the mechanical properties of glass ceramics. In this work, ZrO2 nanocrystals embedded transparent glass ceramics were prepared and effect of the crystallization on ion-exchange properties was investigated. The crystallization of ZrO2 did not affect the transmittance and Vickers hardness due to the small nanocrystal size and the low crystallinity, but significantly enhanced the ion exchange depth of layer (DOL). X-ray diffraction, high resolution transmission electron microscope, Raman spectra and nuclear magnetic resonance analysis demonstrated that with the crystallization of ZrO2, the charge compensator (Na+) was released, which promoted the transformation of highly coordinated Al into [AlO4]− tetrahedral units and the formation of Na+ balanced non-bridging oxygens. These changes in structure of glass made the Na+ more mobile and increased the DOL upon the crystallization. Results reported here may be useful for the development of glass-ceramic materials suitable for chemical strengthening.

Effect of ZnO content on the physical, mechanical and chemical properties of glass-ceramics in the CaO–SiO2–Al2O3 system

The objective of this study was to evaluate the effect of ZnO content on the physical, mechanical and chemical properties of CaO–Al2O3–SiO2 (CAS) glass-ceramics produced from Colombian wastes, such as fly ash, granulated blast furnace slag and glass cullet. The CaO/SiO2 molar ratio of the mixtures was held constant (0.36). ZnO was added to the mixtures in proportions of 4, 7 and 10 wt%. The glass-ceramics were produced by the controlled crystallization of a parent glass. The values of crystallization temperature (Tp) show a fall up to 7 wt% and then shoots up with 10 wt% concentration of ZnO, but in general, ZnO addition lowers the temperature required for the formation of crystalline phases. In general, anorthite (CaAl2Si2O8) is the main phase observed in all heat treated samples, in addition to albite (Na(AlSi3O8)) and labradorite (Na0.45 Ca0.55 Al1.55 Si2.45 O8). The crystalline phases hardystonite (Ca2ZnSi2O7) and willemite (Zn2SiO4) were also identified in the samples with 7 and 10 wt% ZnO. The densities of the glass-ceramics were between 2658 and 2848 kg/m3, and it was found that ZnO helps to increase the density of glass-ceramics. The elastic modulus was in the 100–105 GPa range, the fracture toughness was between 0.45 and 0.64 MPa m1/2, and the Vickers microhardness was between 632 and 653 MPa. With regards to the durability, the weight loss of the glass-ceramics immersed in alkaline solution (NaOH) did not exceed 1.5 wt% after immersion for 6 h at 80 °C. The results of this study confirm that the vitrification process is a favorable option to utilize these industrial wastes.

Effect of B2O3 on the crystallization, structure and properties of MgO–Al2O3–SiO2 glass-ceramics

The formation of α-cordierite glass-ceramics in the MgO–Al2O3–SiO2 system without and with addition of B2O3 was investigated. Moreover, the effects of different contents of B2O3 on the crystallization behavior, structure variation, thermal and physical properties of glass-ceramics were studied, and the action mechanism of B2O3 was systematically discussed by XRD, FT-IR and XPS. The results show that a proper amount of B2O3 shortens the crystallization route and reduces formation temperature of α-cordierite, which further promotes the direct precipitation of α-cordierite in MAS system. The glass-ceramics undergo the phase transitions from intermediate phases of MgO·Al2O3·SiO2 and Mg0·6Al1·2Si1·8O6 to pure α-cordierite without the addition of B2O3. However, the pure α-cordierite directly precipitates in the glass-ceramics adding 4 mol% B2O3 without intermediate phases. Low B2O3 content (4 mol%) promotes the crystallization of α-cordierite, while high B2O3 content (8–12 mol%) inhibits it, which is accompanied by the increase of thermal expansion coefficient from 1.70 × 10−6 °C−1 to 3.72 × 10−6 °C−1 and the decrease of Vickers hardness from 9.4 GPa to 6.9 GPa. B2O3 is confirmed to be very important in controlling the crystallization process of α-cordierite in this glass-ceramics system, and this study is helpful for providing the reference value for others to choose B2O3 and its content.

Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag

Abstract A novel preparation method of glass-ceramics from coal fly ash (CFA) and oil shale ash-derived amorphous slag (OSAS) was developed in this study. Effects of important factors such as OSAS/CFA ratio and sintering temperature on the crystalline phase compositions, microstructure, mechanical-chemical properties, heavy metals leaching characteristics, and potential ecological risk assessment of glass-ceramics were investigated. The results showed that the properties of glass-ceramics increased with increasing OSAS/CFA ratio and sintering temperature, and S4 glass-ceramics (100% OSAS) showed the most superior product performances, followed by the S3 (80%OSAS-20%CFA), S2 (60%OSAS-40%CFA), and S1 (100% CFA). As for the products from the mixed sources, the best product properties of S2 glass-ceramics (density, 2.00 ± 0.04 g/cm 3 ; water absorption, 3.11 ± 0.22%; and compressive strength, 106.67 ± 28.42 MPa) were achieved at 1085 °C. S3 glass-ceramics showed the highest density of 2.16 ± 0.04 g/cm 3 , and lowest water absorption of 0.22 ± 0.01%, and highest compressive strength of 195.99 ± 23.85 MPa at 1085 °C. Specially, the overall energy consumption for preparing S2 and S3 glass-ceramics was estimated to be reduced 23.66–27.00% and 11.67–13.50%, respectively, compared to that of S4 glass-ceramics. In addition, the good chemical stability, low heavy metals leaching concentrations and low potential ecological risk of OSAS-CFA-derived glass-ceramics further confirmed its potential and feasibility as building material in engineering application.

Use of Bypass Cement Dust from Al-Kufa Cement Factory for Production of Glass Ceramic Material

Bypass cement dust was supplied from Alkufa cement factory, which has been used in preparing glass ceramic material. The percentage of bypass cement dust which is included in the overall batch is about 30 wt%. The bypass cement dust composition has been modified by adding other materials like marble, granite, and silica, to prepare glass ceramic material by powder technology. The prepared samples with different ratios ingredients were pressed under a load of 15 tons/cm2 for 90 sec, in a steel mold of 30 mm in diameter, liquid phase sintering is carried out by using High-Temperature Furnace at 100 – 1250 º C and 208/ 240 VAC. Techniques including SEM (Scanning electron microscopy) and XRD (X-ray diffraction) tests were then used to evaluate the produced material. The obtained glass ceramic material have high bulk and apparent density, low apparent porosity , high compression strength and hardness , low electrical and thermal conductivity. The XRD and SEM results showed that glass ceramic materials are formed. The phase transformation has happened and the titanite, wollastonite, diopside, periclase, and silica condense clusters phase are formed, which are the important phases of glass ceramic. Tests show that the sample A5 contains 38% bypass cement dust, 30%granite, and 32% silica , the sample C5 contains 28% bypass, granite 30%, marble 10%, and silica 32% and the sample B4 contains 59% bypass , 25% marble, and 16% silica . Showing properties A5 and C5 which conform to that of glass ceramic properties better than B4. The research is considered a pioneer work in the field of investment of dust of bypass cement for producing glass ceramic materials. It represents an important step and could be the basis for future researches leading to the achievement of glass ceramic production in Iraq.

Thermal process and mechanism of phase transition and detoxification of glass-ceramics from asbestos tailings

Based on the chemical and mineral composition of asbestos tailings, the asbestos tailings powder was pre-fired, formed into green body and finally heat-treated to prepare glass-ceramics through the processes of crystallization and sintering. The main crystal phases of the sample were forsterite and enstatite, and the minor crystal phases were magnesioferrite and diopside. The effects of crystallization temperature (787–867 °C) and sintering temperature (1150–1250 °C) on crystallization and phase change, micromorphology and physical-chemical properties of glass ceramics were investigated by means of thermogravimetry-differential scanning calorimetry analysis (TG-DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM-EDS) and mechanical properties tests. The results showed that the toxic phase chrysotile was almost converted into forsterite when the asbestos tailings powder was pre-fired at 700 °C for 1 h. During the sintering process of the green body, with the increase in the crystallization temperature, the content of the forsterite firstly increased and then decreased, and the enstatite increased gradually. After crystallizing at 850 °C for 1 h and holding at different sintering temperatures for 1 h, the glass-ceramics samples were obtained. With the increase in sintering temperature, the content of diopside in the samples gradually decreased, the hematite gradually disappeared and magnesioferrite precipitated at the same time. The crystal morphology was transformed from aggregates of spherulites and ellipse into intertwined bodies of spherulites, ellipse and round bar-like shape. The glass-ceramics achieved optimum compactness at the sintering temperature of 1200 °C with the water absorption rate being 0.026%, the bulk density being 3.164 g/cm3, and the flexural strength being 88 MPa, which reached the standard of glass ceramics for construction. In the process of preparing glass-ceramics from asbestos tailings, the phase transition and detoxification in asbestos tailings were realized, which had certain practical value for the utilization of asbestos tailings and the preparation of high value-added materials.

Effects of SiO2/CaO ratio on viscosity, structure, and mechanical properties of blast furnace slag glass ceramics

In an attempt to improve the effective utilization of solid waste generated in the steel industry and reduce the production cost of glass ceramics, glass ceramics were prepared from blast furnace slag as the main raw material. The effects of SiO2/CaO molar ratio on the viscosity, structure, and properties of the as-prepared CaO–MgO–Al2O3–SiO2 (CMAS) blast furnace slag glass ceramics were investigated by viscometry, X-ray diffraction, scanning electron microscopy, Raman spectroscopy, and physicochemical property measurements. The results showed that with decreasing SiO2/CaO ratio, the viscosity and degree of polymerization of molten glass significantly decreased, and the main crystalline phase transformed from single diopside to a combination of augite and gehlenite phases, which affected the physicochemical properties of the glass ceramics. The glass ceramic sample with a density of 2.78 g/cm3 exhibited the best comprehensive performance: bending strength of 182.86 MPa, microhardness of 7.34 GPa, acid resistance of 95.21%, and alkali resistance of 98.43%. The various characterization results proved that the prepared glass ceramics could be potentially used for several industrial applications.

Effects of Al/Na and heat treatment on the structure and properties of glass ceramics from molten blast furnace slag

Abstract Glass ceramics with different Al/Na molar ratio from blast furnace slag were prepared using conventional melting-casting method. The structure and properties of glasses or glass ceramics were investigated by DSC, Raman, MAS NMR, XRD, and SEM. The DSC results indicated that the thermal stability (ΔT = Tc-Tg) and crystallization temperature (Tc) of the parent glass firstly increased and then decreased when Al/Na exceeded 1.21. The Raman and 27Al MAS NMR spectra analysis revealed that [AlO6] increased positively with Al2O3/Na2O. The calculation of Qn ([SiO4] units with bridging oxygen atoms number of n) suggested an obvious decline of (Q0+Q2)/(Q1+Q3) and that [SiO4] mainly existed in the form of Q1 when Al/Na exceeded 1.21, which accorded closely with Tc variation. The crystallization results determined by XRD showed that as Al/Na increased, the main crystal phase was transformed from akermanite to gehlenite and nepheline disappeared. Glass ceramics with Al/Na of 1.48 nucleated at 780 °C for 2 h and crystallized at 880 °C for 3 h exhibited the maximum value of flexural strength. Orthogonal experiment (L9(34)) were carried out to investigated the optimum heat treatment of glass ceramics with a Al/Na of 1.48. The analyses indicated that nucleation time variation has little influence on the flexural strength, and the optimum heat treatment was determined as 760 °C – 1 h–900 °C – 1 h and the flexural strength was characterized as 81.310 MPa.

Influence of Sintering Temperature on Mechanical Properties of Glass-Ceramics Produced with Windshield Waste

In this work, glass-ceramics were produced with mechanical and physical properties, using recycled glass powder from windshields as raw material. The glass powder was formed and sintered at temperatures 600, 650, 700, 750, and 800°C. Pieces were also produced with the addition of niobium oxide to the glass powder. The flexural strength and the Archimedes density of the produced parts were determined. The reliability of the results was evaluated by the Weibull statistic. X-ray diffraction was performed. Maximum flexural strength was 77.64 MPa at 750°C, with the addition of niobium oxide at 43.86 MPa at 700°C. X-ray diffraction showed crystalline structures in the specimens with the addition of the nucleating agent, confirming the production of glass-ceramics in this composition. The pure glass powder only crystallized from 750°C. The Nb2O5 favors the formation of crystalline structures in the vitreous matrix at low temperatures and with piezoelectric structures.

Influence of TiO2 and thermal processing on morphological, structural and magnetic properties of Fe2O3/MnO2 modified glass-ceramics

The present report is an investigation of morphological, structural and magnetic properties of multicomponent glass-ceramics with respect to content of nucleating agent (TiO2) as well as thermal processing parameters. Structural features of these glass-ceramics were explored by their crystalline phase analysis and morphological studies after sintering at various temperatures (850–1000 °C) for 2 h (h). The samples exhibited near superparamagnetic nature which would be helpful for heat generation purposes (such as in hyperthermia treatment of cancer). Magnetic properties of the glass-ceramics are dependent on the crystallized phases grown upon sintering. Concentration dependent role of TiO2 is discussed based upon the obtained results.

Study the effect of gamma radiation on the some properties of glass and glass-ceramic immobilize nuclear waste

Vitrifications process one of the important methods to immobilize nuclear waste. In this research nuclear waste (Strontium Oxides) with molecular weight (5%) was immobilized by vitrification methods in two types of borosilicate glass (c-type) which are glass and glass-ceramics. To investigate the physical, chemical and mechanical properties of glass and glass-ceramic after immobilize nuclear waste these samples irradiated by gamma ray radiation. Co-60 was used as gamma a irradiation with dose rate 0.38 kGy/hr for different period of time. It’s found that gamma radiation affected the glass and glass-ceramic properties. From phase analysis by the x-ray diffraction for glass-ceramic samples proved that at doses 343kGy change the crystalline glass to amorphous glass. A conclusion from these ionization studies is that the limited magnitude of Strontium ion leaching associated with ionization damage does not appear to pose any direct problems for the safe storage of nuclear waste glass.