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Preparation method of black pigment for nano zirconia ceramics
The invention discloses a preparation method of a black pigment for nano zirconia ceramics. The preparation method of the pigment comprises the following steps: 1, dropwise adding metal salts such as cobalt, chromium, aluminum, iron and the like and alkali or alkali metal salts into water at the same time, and carrying out filter pressing, washing and drying to obtain a precursor A; 2, putting the precursor A and water into a ball mill according to a certain mass ratio for ball milling, and then washing and drying to obtain a precursor B; 3, uniformly mixing the precursor B with a rare earth compound such as yttrium and the like which assists in stability according to a certain mass ratio, and calcining at 600-800 DEG C; and 4, washing the calcined product with water, drying, and carrying out jet milling to obtain the black pigment for nano zirconia ceramics. According to the invention, the crystal transformation temperature of the black pigment is reduced to 600-800 DEG C, the D100 of the material after crystal transformation is directly within 2 microns without secondary grinding, and the obtained black pigment has a spinel structure, good crystal grain development, high specific surface, stable chemical properties and the like, and meets the performance requirements in the field of zirconia ceramics.
本发明公开了一种纳米氧化锆陶瓷用黑色颜料的制备方法。该颜料的制备方法如下：1、将钴、铬、铝、铁等金属盐与碱或碱金属盐同时滴入水中，经压滤水洗烘干后获得前驱体A；2、将前驱体A与水按一定质量比装入球磨机中球磨后，再经水洗烘干后获得前驱体B；3、将前驱体B与助稳定性的钇等稀土化合物按一定质量比混合均匀后，在600℃‑800℃下煅烧；4、将煅烧产物水洗、烘干、气流粉碎获得纳米氧化锆陶瓷用黑色颜料。本发明使黑色颜料的转晶温度降低至600℃‑800℃，且转晶后物料不需二次研磨D100直接达到2微米以内，所得黑色颜料具有尖晶石结构、晶粒发育良好、高比表面及稳定的化学性等，符合氧化锆陶瓷领域的性能要求。
Preparation method of black pigment for nano zirconia ceramics
The invention discloses a preparation method of a black pigment for nano zirconia ceramics. The preparation method of the pigment comprises the following steps: 1, dropwise adding metal salts such as cobalt, chromium, aluminum, iron and the like and alkali or alkali metal salts into water at the same time, and carrying out filter pressing, washing and drying to obtain a precursor A; 2, putting the precursor A and water into a ball mill according to a certain mass ratio for ball milling, and then washing and drying to obtain a precursor B; 3, uniformly mixing the precursor B with a rare earth compound such as yttrium and the like which assists in stability according to a certain mass ratio, and calcining at 600-800 DEG C; and 4, washing the calcined product with water, drying, and carrying out jet milling to obtain the black pigment for nano zirconia ceramics. According to the invention, the crystal transformation temperature of the black pigment is reduced to 600-800 DEG C, the D100 of the material after crystal transformation is directly within 2 microns without secondary grinding, and the obtained black pigment has a spinel structure, good crystal grain development, high specific surface, stable chemical properties and the like, and meets the performance requirements in the field of zirconia ceramics.
本发明公开了一种纳米氧化锆陶瓷用黑色颜料的制备方法。该颜料的制备方法如下：1、将钴、铬、铝、铁等金属盐与碱或碱金属盐同时滴入水中，经压滤水洗烘干后获得前驱体A；2、将前驱体A与水按一定质量比装入球磨机中球磨后，再经水洗烘干后获得前驱体B；3、将前驱体B与助稳定性的钇等稀土化合物按一定质量比混合均匀后，在600℃‑800℃下煅烧；4、将煅烧产物水洗、烘干、气流粉碎获得纳米氧化锆陶瓷用黑色颜料。本发明使黑色颜料的转晶温度降低至600℃‑800℃，且转晶后物料不需二次研磨D100直接达到2微米以内，所得黑色颜料具有尖晶石结构、晶粒发育良好、高比表面及稳定的化学性等，符合氧化锆陶瓷领域的性能要求。
Preparation method of black pigment for nano zirconia ceramics
一种纳米氧化锆陶瓷用黑色颜料的制备方法
CHENG LANLAN (author) / LIU HUAFENG (author) / CHEN RENHUA (author) / LIU WENMING (author) / LIAO YANQIN (author)
2021-12-17
Patent
Electronic Resource
Chinese
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