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Preparation method of yttrium-stabilized zirconium oxide nano-powder
The invention provides yttrium-stabilized zirconium oxide nano-powder and a preparation method thereof.According to a hydrothermal synthesis method, a mixed solution of ammonia water, zirconium oxychloride and yttrium chloride is subjected to a reaction, nucleation and growth at high temperature and high pressure to form zirconium oxide crystal grains, then a yttrium-zirconium solid solution is generated in the calcination process to enable the crystals to form a metastable tetragonal phase or cubic phase, and the yttrium-stabilized zirconium oxide nano-powder is obtained. Therefore, the thermal shock resistance of zirconium oxide is improved. The zirconium oxide powder prepared by the method is high in purity, good in thermal shock resistance stability, narrow in particle size distribution, excellent in flowing property and suitable for preparing high-end ceramic parts such as medical beauty ceramics and electronic ceramics.
本发明提供一种以钇稳定的氧化锆纳米粉体及其制备方法，通过水热合成法，用氨水、氧氯化锆、氯化钇混合溶液在高温高压下反应、成核、生长形成氧化锆晶粒，然后在煅烧过程中生成钇锆固溶体使晶体形成亚稳的四方相或者立方相，从而提高氧化锆的抗热震性能。本发明制备的氧化锆粉体纯度高，抗热震稳定性好，粒度分布窄，流动性能优，适用于制备医美陶瓷、电子陶瓷等高端陶瓷制件。
Preparation method of yttrium-stabilized zirconium oxide nano-powder
The invention provides yttrium-stabilized zirconium oxide nano-powder and a preparation method thereof.According to a hydrothermal synthesis method, a mixed solution of ammonia water, zirconium oxychloride and yttrium chloride is subjected to a reaction, nucleation and growth at high temperature and high pressure to form zirconium oxide crystal grains, then a yttrium-zirconium solid solution is generated in the calcination process to enable the crystals to form a metastable tetragonal phase or cubic phase, and the yttrium-stabilized zirconium oxide nano-powder is obtained. Therefore, the thermal shock resistance of zirconium oxide is improved. The zirconium oxide powder prepared by the method is high in purity, good in thermal shock resistance stability, narrow in particle size distribution, excellent in flowing property and suitable for preparing high-end ceramic parts such as medical beauty ceramics and electronic ceramics.
本发明提供一种以钇稳定的氧化锆纳米粉体及其制备方法，通过水热合成法，用氨水、氧氯化锆、氯化钇混合溶液在高温高压下反应、成核、生长形成氧化锆晶粒，然后在煅烧过程中生成钇锆固溶体使晶体形成亚稳的四方相或者立方相，从而提高氧化锆的抗热震性能。本发明制备的氧化锆粉体纯度高，抗热震稳定性好，粒度分布窄，流动性能优，适用于制备医美陶瓷、电子陶瓷等高端陶瓷制件。
Preparation method of yttrium-stabilized zirconium oxide nano-powder
一种以钇稳定的氧化锆纳米粉体的制备方法
TAN HAIXIANG (author) / QIN WENZHONG (author) / WEI SHIQIANG (author) / HUANG YUFENG (author) / GAN PEIYUAN (author)
2023-05-26
Patent
Electronic Resource
Chinese
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