The invention belongs to the field of inorganic non-metallic materials and the preparation technology thereof, in particular to a lithium base casting porcelain oral restorative material and a preparation method thereof. Chemical composition of the material (wt%): Li: 2 O 17 to 24% Al, 2 O:: 3 10 ~ 15% SiO, down 2 from 55 to 65%, down K 2 O 4 ~ 6%, Na: 2 O 0.5 ~ 3% ZrO: 2, 0.5 ~ 4% and 0.5 ~ 3% oxide colorants. The molar ratio of SiO: 2 and Li: 2 O 1.2 - 1.8: 1. Fe: colorant oxide 2 O: 3, MnO: 2, CeO: 2 in any one or more. The preparation method of ceramic dental restorative materials comprising the following steps: preparation, melting, quenching, grinding, spray drying, molding and sintering. Compared with the prior art, the present invention has the advantages of low cost, high dimensional accuracy, good product repeatability, stable product quality, excellent mechanical comprehensive performance and suitability for industrial production.
【技术实现步骤摘要】
【技术保护点】
一种锂基铸瓷口腔修复材料,其特征在于该材料的化学组成成分(重量%)为:Li↓[2]O17~24%、Al↓[2]O↓[3]10~15%、SiO↓[2]55~65%、K↓[2]O4~6%、Na↓[2]O0.5~3%、ZrO↓[2]0.5~4%以及着色剂氧化物0.5~3%。
【技术特征摘要】
【专利技术属性】
技术研发人员:梁新杰,仇越秀,周少雄,宋文娟,冯金海,李晓天,高振英,孙梦依,
申请(专利权)人:安泰科技股份有限公司,北京安泰生物医用材料有限公司,
类型:发明
国别省市:11[中国|北京]
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