Manufacturing Conditions for Non-Melting Polycrystalline Translucency Ceramics Using Composite Quartz Materials

材料科学 烧结 陶瓷 微观结构 造型(装饰) 复合材料 原材料 光散射 散射 光学 化学 物理 有机化学
作者
Kazuya Miyagi,Yosuke Fukano
出处
期刊:Materials transactions [The Japan Institute of Metals]
卷期号:64 (12): 2814-2820
标识
DOI:10.2320/matertrans.mt-y2023004
摘要

Verification of the manufacturing conditions for translucency ceramics are showed using powder forming and sintering method in order to establish the manufacturing technology for optical devices with arbitrary complex shape and shape retention, and optical excitation materials. However, this method is extremely difficult to obtain translucency ceramics because the combination of complex factors such as “the shape and particle size of the raw materials, forming conditions and sintering” adversely affect the translucency of the sintered material, which is caused by the transmitted light scattering of the sintered material. Therefore, we have succeeded in realizing transparent ceramics by examining these complicated factors (materials, molding, sintering conditions, crystallization) and specifying the amorphous sintering conditions and the densification-molding conditions necessary to eliminate the light scattering factors inherent in sintered materials. It is necessary to show the correlation of the volume change with respect to Tg-temperature and Tm-temperature, which are important regarding amorphization, considering the sintering treatment conditions that depend on the particle size of the raw material fine powder, and to specify the molding body-pressurization (pressure and time) conditions. These optimizations will make it possible to develop the expected high-functional-photoelectric optical devices with microstructures and, high-power laser light sources independent of materials.
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