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High-strength transparent silicon nitride ceramic and preparation method thereof
The invention belongs to the technical field of advanced ceramic materials, and particularly relates to high-strength transparent silicon nitride ceramic and a preparation method thereof. According to the invention, nano alpha-silicon nitride and nano aluminum oxide are used as raw materials, have large specific surface area and good compatibility, are preheated and calcined under the protection of inert atmosphere, and are subjected to sectional heating and cooling to obtain the transparent silicon nitride ceramic, and the transparent silicon nitride ceramic has considerable strength, the strength is more than 1800MPa, and the transparent silicon nitride ceramic has good thermal stability and good thermal stability. The material has excellent mechanical properties and can be used in the fields of aerospace, bulletproof automobiles and the like. The high-strength transparent silicon nitride ceramic provided by the invention can be used for aerospace and bulletproof automobiles, is particularly suitable for safety protection parts with observation requirements, and has a wide application prospect.
本发明属于陶瓷先进材料技术领域，具体涉及一种高强度透明氮化硅陶瓷及其制备方法。本发明采用纳米α‑氮化硅和纳米三氧化二铝作为原料，其比表面积大，两者彼此的相容性较好，在惰性气氛保护下进行预热和煅烧，通过上述两者的分段式加热，冷却后即可得到透明的氮化硅陶瓷，并且强度可观，其强度在1800MPa以上，力学性能优异，可用于航空航天和防弹汽车等领域。本发明提供的高强度透明氮化硅陶瓷可用于航空航天和防弹汽车，尤其适合用于有观察需要的安全防护性部件，应用前景广阔。
High-strength transparent silicon nitride ceramic and preparation method thereof
The invention belongs to the technical field of advanced ceramic materials, and particularly relates to high-strength transparent silicon nitride ceramic and a preparation method thereof. According to the invention, nano alpha-silicon nitride and nano aluminum oxide are used as raw materials, have large specific surface area and good compatibility, are preheated and calcined under the protection of inert atmosphere, and are subjected to sectional heating and cooling to obtain the transparent silicon nitride ceramic, and the transparent silicon nitride ceramic has considerable strength, the strength is more than 1800MPa, and the transparent silicon nitride ceramic has good thermal stability and good thermal stability. The material has excellent mechanical properties and can be used in the fields of aerospace, bulletproof automobiles and the like. The high-strength transparent silicon nitride ceramic provided by the invention can be used for aerospace and bulletproof automobiles, is particularly suitable for safety protection parts with observation requirements, and has a wide application prospect.
本发明属于陶瓷先进材料技术领域，具体涉及一种高强度透明氮化硅陶瓷及其制备方法。本发明采用纳米α‑氮化硅和纳米三氧化二铝作为原料，其比表面积大，两者彼此的相容性较好，在惰性气氛保护下进行预热和煅烧，通过上述两者的分段式加热，冷却后即可得到透明的氮化硅陶瓷，并且强度可观，其强度在1800MPa以上，力学性能优异，可用于航空航天和防弹汽车等领域。本发明提供的高强度透明氮化硅陶瓷可用于航空航天和防弹汽车，尤其适合用于有观察需要的安全防护性部件，应用前景广阔。
High-strength transparent silicon nitride ceramic and preparation method thereof
一种高强度透明氮化硅陶瓷及其制备方法
ZHU FULIN (author) / XIAO LIANG (author) / XU TAO (author) / LIU HAIYUAN (author) / XIE QINGZHONG (author) / CHEN JIE (author)
2024-04-09
Patent
Electronic Resource
Chinese
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