Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance AlON transparent ceramic and low-temperature rapid preparation method thereof
The invention relates to a high-performance AlON transparent ceramic and a low-temperature rapid preparation method thereof. The preparation method comprises the following steps: carrying out ball milling and mixing on gamma-Al2O3, AlN and three-phase sintering aids (Y2O3, MgO and La2O3); filling the dried powder into a graphite mold; the graphite mold is placed in a discharge plasma sintering furnace for vacuum sintering, and finally a sample is subjected to carbon removal treatment in the N2 atmosphere. According to the method, the novel Y2O3, MgO and La2O3 three-phase sintering aids are adopted, and the discharge plasma sintering technology is utilized to prepare the AlON transparent ceramic through solid-phase reaction in one step, so that the preparation process of the AlON transparent ceramic is simplified, the sintering temperature of the AlON transparent ceramic is greatly reduced, the sintering time is shortened, meanwhile, the density of the AlON transparent ceramic is improved, and the AlON transparent ceramic has good application prospects. The comprehensive mechanical property of the AlON transparent ceramic is greatly improved on the premise of ensuring the transmittance of the AlON ceramic.
本发明涉及一种高性能AlON透明陶瓷及其低温快速制备方法，将γ‑Al2O3、AlN、三相烧结助剂(Y2O3、MgO、La2O3)进行球磨混合；将干燥后的粉体装入石墨模具中；将石墨模具置于放电等离子烧结炉中进行真空烧结，最后在N2气氛下对样品进行除碳处理。该方法采用新型Y2O3、MgO、La2O3三相烧结助剂并利用放电等离子烧结技术通过固相反应一步制得AlON透明陶瓷，不仅简化了AlON透明陶瓷的制备工艺，且大幅降低了AlON透明陶瓷的烧结温度，缩短烧结时间，同时提高了AlON透明陶瓷的致密度，在保证AlON陶瓷透过率的前提下极大地提高AlON透明陶瓷的综合力学性能。
High-performance AlON transparent ceramic and low-temperature rapid preparation method thereof
The invention relates to a high-performance AlON transparent ceramic and a low-temperature rapid preparation method thereof. The preparation method comprises the following steps: carrying out ball milling and mixing on gamma-Al2O3, AlN and three-phase sintering aids (Y2O3, MgO and La2O3); filling the dried powder into a graphite mold; the graphite mold is placed in a discharge plasma sintering furnace for vacuum sintering, and finally a sample is subjected to carbon removal treatment in the N2 atmosphere. According to the method, the novel Y2O3, MgO and La2O3 three-phase sintering aids are adopted, and the discharge plasma sintering technology is utilized to prepare the AlON transparent ceramic through solid-phase reaction in one step, so that the preparation process of the AlON transparent ceramic is simplified, the sintering temperature of the AlON transparent ceramic is greatly reduced, the sintering time is shortened, meanwhile, the density of the AlON transparent ceramic is improved, and the AlON transparent ceramic has good application prospects. The comprehensive mechanical property of the AlON transparent ceramic is greatly improved on the premise of ensuring the transmittance of the AlON ceramic.
本发明涉及一种高性能AlON透明陶瓷及其低温快速制备方法，将γ‑Al2O3、AlN、三相烧结助剂(Y2O3、MgO、La2O3)进行球磨混合；将干燥后的粉体装入石墨模具中；将石墨模具置于放电等离子烧结炉中进行真空烧结，最后在N2气氛下对样品进行除碳处理。该方法采用新型Y2O3、MgO、La2O3三相烧结助剂并利用放电等离子烧结技术通过固相反应一步制得AlON透明陶瓷，不仅简化了AlON透明陶瓷的制备工艺，且大幅降低了AlON透明陶瓷的烧结温度，缩短烧结时间，同时提高了AlON透明陶瓷的致密度，在保证AlON陶瓷透过率的前提下极大地提高AlON透明陶瓷的综合力学性能。
High-performance AlON transparent ceramic and low-temperature rapid preparation method thereof
一种高性能AlON透明陶瓷及其低温快速制备方法
ZHANG CHAOHUI (Autor:in) / JIA XIAOTONG (Autor:in) / CHENG XINGWANG (Autor:in) / XU TIANHAO (Autor:in) / LIU LUOJIN (Autor:in) / LI XIANYU (Autor:in) / JIA ZHAOHU (Autor:in) / LIU YA (Autor:in) / FENG XIANGXIANG (Autor:in) / WANG QIANG (Autor:in)
27.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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