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Process of preparation of zircona stabilized and application of zircona stabilized preparation of ceramics

机译:氧化锆稳定剂的制备方法及氧化锆稳定剂在陶瓷中的应用

摘要

Submicronic zirconia particulates containing stabilizing amounts of yttrium or cerium, well adapted for ceramics applications, are produced by (i) admixing an aqueous suspension of zirconium fluosulfate particles having a pH of from about 0 to 3 with an aqueous solution of a salt of yttrium or cerium, (ii) neutralizing the resulting mixture at a pH of at least 7, (iii) separating a mixture of zirconium/yttrium or zirconium/cerium hydroxides from the medium of neutralization, (iv) washing said mixture of hydroxides to eliminate sulfate and fluoride ions therefrom, and then (v) calcining said mixture of hydroxides.
机译:含有稳定量的钇或铈的亚微米氧化锆颗粒非常适合用于陶瓷应用,是通过(i)将pH值为约0至3的氟硫酸锆颗粒的水悬浮液与钇盐或铈盐的水溶液混合而成的铈;(ii)在至少7的pH值下中和所得混合物,(iii)从中和介质中分离出锆/钇或氢氧化锆/铈的混合物,(iv)洗涤所述氢氧化物混合物以消除硫酸根和氟离子,然后(v)煅烧所述氢氧化物混合物。

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