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Colored zirconia ceramic and preparation method thereof
The invention discloses colored zirconia ceramic and a preparation method thereof. The preparation method comprises the following steps: S1, carrying out ball-milling mixing on nano aluminum oxide powder and zirconia powder according to a mass ratio of 5: 95, and drying to obtain uniformly dispersed composite ceramic powder; s2, molding and sintering the composite ceramic powder to obtain the nano-alumina reinforced white zirconia ceramic, s3, the nanometer aluminum oxide reinforced white zirconia ceramic is subjected to mechanical polishing; s4, embedding the polished nano aluminum oxide reinforced white zirconia ceramic into cobalt oxide or chromium oxide powder, and compacting to obtain colored zirconia ceramic with a colored surface layer; and S5, carrying out mechanical accurate grinding on the colored zirconia ceramic. The high-toughness colored zirconia ceramic with high core toughness and pure surface color is obtained through the thought that the zirconia matrix is toughened by using the nano aluminum oxide, and the coloring compound is generated on the surface layer of the matrix through the solid-phase reaction of the coloring oxide and the nano aluminum oxide.
本发明公开一种彩色氧化锆陶瓷及其制备方法，其制备方法包括以下步骤：S1、将纳米氧化铝粉体与氧化锆粉体按质量配比5：95进行球磨混合，干燥得到分散均匀的复合陶瓷粉末；S2、将复合陶瓷粉末进行成型，烧结得到纳米氧化铝增强白色氧化锆陶瓷；S3、将纳米氧化铝增强白色氧化锆陶瓷进行机械打磨；S4、将经打磨后的纳米氧化铝增强白色氧化锆陶瓷埋入氧化钴或氧化铬粉体中压实，得到表层着色的彩色氧化锆陶瓷；S5、将彩色氧化锆陶瓷进行机械精磨。本发明通过利用纳米氧化铝对氧化锆基体进行增韧，同时在基体表层通过着色氧化物与纳米氧化铝固相反应生成显色化合物来呈色的思路，得到了芯部高韧性，表面色彩纯正的高韧性彩色氧化锆陶瓷。
Colored zirconia ceramic and preparation method thereof
The invention discloses colored zirconia ceramic and a preparation method thereof. The preparation method comprises the following steps: S1, carrying out ball-milling mixing on nano aluminum oxide powder and zirconia powder according to a mass ratio of 5: 95, and drying to obtain uniformly dispersed composite ceramic powder; s2, molding and sintering the composite ceramic powder to obtain the nano-alumina reinforced white zirconia ceramic, s3, the nanometer aluminum oxide reinforced white zirconia ceramic is subjected to mechanical polishing; s4, embedding the polished nano aluminum oxide reinforced white zirconia ceramic into cobalt oxide or chromium oxide powder, and compacting to obtain colored zirconia ceramic with a colored surface layer; and S5, carrying out mechanical accurate grinding on the colored zirconia ceramic. The high-toughness colored zirconia ceramic with high core toughness and pure surface color is obtained through the thought that the zirconia matrix is toughened by using the nano aluminum oxide, and the coloring compound is generated on the surface layer of the matrix through the solid-phase reaction of the coloring oxide and the nano aluminum oxide.
本发明公开一种彩色氧化锆陶瓷及其制备方法，其制备方法包括以下步骤：S1、将纳米氧化铝粉体与氧化锆粉体按质量配比5：95进行球磨混合，干燥得到分散均匀的复合陶瓷粉末；S2、将复合陶瓷粉末进行成型，烧结得到纳米氧化铝增强白色氧化锆陶瓷；S3、将纳米氧化铝增强白色氧化锆陶瓷进行机械打磨；S4、将经打磨后的纳米氧化铝增强白色氧化锆陶瓷埋入氧化钴或氧化铬粉体中压实，得到表层着色的彩色氧化锆陶瓷；S5、将彩色氧化锆陶瓷进行机械精磨。本发明通过利用纳米氧化铝对氧化锆基体进行增韧，同时在基体表层通过着色氧化物与纳米氧化铝固相反应生成显色化合物来呈色的思路，得到了芯部高韧性，表面色彩纯正的高韧性彩色氧化锆陶瓷。
Colored zirconia ceramic and preparation method thereof
一种彩色氧化锆陶瓷及其制备方法
ZHANG HAIBO (author) / MA WEIGANG (author) / TAN HUA (author) / LIU KAI (author) / ZHANG SHUNPING (author) / ZHANG XIAODONG (author)
2023-04-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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