This study looks at crystallization and sintering behavior in B₂O₃ containing Li2O-Al₂O₃-SiO₂ glass powder. The sintered sample was produced with glass powders measuring 44 μm. The relative density and transmittance of the sintered samples showed the highest value at the temperature of 650°C. At temperatures higher than 650°C, crystal growth occurred to decrease the densification of B₂O₃-Li₂O-Al₂O₃-SiO₂ (BLAS) glass powder. The main crystalline phase in the glass powder was â-spodumene. From non-isothermal differential thermal analysis, the crystallization of particles (Φ = 44 μm) was observed at 640°C to 684°C with respect to the heating rate. The activation energy of crystallization (EC) and the Avrami constant (n) calculated by Kissinger and Ozawa equations indicated that the surface and the bulk crystallization occurred simultaneously in the glass. The optimum sintering temperature of this glass powder was 650°C without crystal growth of β-spodumene, although nucleation or nano-crystal growth occurred.

本研究着眼于在含Li2O-Al ₂ O ₃ -SiO ₂玻璃粉的B ₂ O ₃中的结晶和烧结行为。用尺寸为44μm的玻璃粉末生产烧结样品。烧结样品的相对密度和透射率在650℃的温度下显示出最高值。在高于650°C的温度下，发生晶体生长以降低B ₂ O ₃ -Li ₂ O-Al ₂ O ₃ -SiO ₂的致密化（BLAS）玻璃粉。玻璃粉末中的主要结晶相是锂辉石。根据非等温差热分析，相对于加热速率，在640°C至684°C下观察到了颗粒的结晶（Φ= 44μm）。通过基辛格和小泽方程计算的结晶活化能（EC）和Avrami常数（n）表明，玻璃中的表面和整体结晶同时发生。尽管发生了成核或纳米晶体的生长，但该玻璃粉末的最佳烧结温度为650℃，而没有β-锂辉石的晶体生长。