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Mullite reinforced flexible aluminum titanate ceramic and preparation method thereof
The invention discloses mullite reinforced flexible aluminum titanate ceramic and a preparation method thereof. The method comprises the following steps: mixing mullite, aluminum oxide powder, titanium oxide powder, an additive and water, carrying out ball milling treatment to obtain slurry, drying, and grinding to obtain mixed powder; and carrying out compression molding on the mixed powder, drying to obtain a ceramic green body, and heating for sintering treatment to obtain the mullite reinforced flexible aluminum titanate ceramic. The flexibility of the ceramic body is obtained by relying on the microcrack structure of the ceramic body, and the introduction of mullite can promote the solid-phase reaction of aluminum titanate, inhibit the medium-temperature-section decomposition of aluminum titanate and reduce the grain size of aluminum titanate, so that the width of microcracks is reduced, and the mechanical strength of the ceramic body is effectively improved. According to the mullite reinforced flexible aluminum titanate ceramic, the bending flexibility of the ceramic material at room temperature is realized, meanwhile, the ceramic material has relatively high strength, and the problem that the mechanical strength of the flexible aluminum titanate ceramic material is relatively low is solved.
本发明公开了一种莫来石增强柔性钛酸铝陶瓷及其制备方法。该方法包括：将莫来石、氧化铝粉体、氧化钛粉体、添加剂及水混合，球磨处理，得到料浆，干燥，研磨，得到混合粉体；将混合粉体压制成型，干燥得到陶瓷生坯，升温进行烧结处理，得到所述莫来石增强柔性钛酸铝陶瓷。陶瓷体的柔性是依靠其微裂纹结构来获得，莫来石的引入可促进钛酸铝的固相反应，抑制钛酸铝的中温段分解，减小钛酸铝的晶粒尺寸，从而减小微裂纹的宽度，有效提高陶瓷体的机械强度。该种莫来石增强柔性钛酸铝陶瓷在实现陶瓷材料于室温下具有弯曲柔性的同时，具备较高的强度，改善了柔性钛酸铝陶瓷材料机械强度较低的问题。
Mullite reinforced flexible aluminum titanate ceramic and preparation method thereof
The invention discloses mullite reinforced flexible aluminum titanate ceramic and a preparation method thereof. The method comprises the following steps: mixing mullite, aluminum oxide powder, titanium oxide powder, an additive and water, carrying out ball milling treatment to obtain slurry, drying, and grinding to obtain mixed powder; and carrying out compression molding on the mixed powder, drying to obtain a ceramic green body, and heating for sintering treatment to obtain the mullite reinforced flexible aluminum titanate ceramic. The flexibility of the ceramic body is obtained by relying on the microcrack structure of the ceramic body, and the introduction of mullite can promote the solid-phase reaction of aluminum titanate, inhibit the medium-temperature-section decomposition of aluminum titanate and reduce the grain size of aluminum titanate, so that the width of microcracks is reduced, and the mechanical strength of the ceramic body is effectively improved. According to the mullite reinforced flexible aluminum titanate ceramic, the bending flexibility of the ceramic material at room temperature is realized, meanwhile, the ceramic material has relatively high strength, and the problem that the mechanical strength of the flexible aluminum titanate ceramic material is relatively low is solved.
本发明公开了一种莫来石增强柔性钛酸铝陶瓷及其制备方法。该方法包括：将莫来石、氧化铝粉体、氧化钛粉体、添加剂及水混合，球磨处理，得到料浆，干燥，研磨，得到混合粉体；将混合粉体压制成型，干燥得到陶瓷生坯，升温进行烧结处理，得到所述莫来石增强柔性钛酸铝陶瓷。陶瓷体的柔性是依靠其微裂纹结构来获得，莫来石的引入可促进钛酸铝的固相反应，抑制钛酸铝的中温段分解，减小钛酸铝的晶粒尺寸，从而减小微裂纹的宽度，有效提高陶瓷体的机械强度。该种莫来石增强柔性钛酸铝陶瓷在实现陶瓷材料于室温下具有弯曲柔性的同时，具备较高的强度，改善了柔性钛酸铝陶瓷材料机械强度较低的问题。
Mullite reinforced flexible aluminum titanate ceramic and preparation method thereof
一种莫来石增强柔性钛酸铝陶瓷及其制备方法
SHUI ANZE (Autor:in) / LIAN JIAWEI (Autor:in) / SHAN QINGLIANG (Autor:in) / CHEN WEIWEI (Autor:in) / MA QIAN (Autor:in) / WANG YEWEI (Autor:in) / ZHOU YUQIAN (Autor:in)
25.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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