Aqueous degradation and chemical passivation of yttria-tetragonally-stabilized zirconia at 25°C
Aqueous degradation and chemical passivation of yttria-tetragonally-stabilized zirconia at 25°C
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DOI：
10.1111/j.1151-2916.2002.tb00288.x
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发表时间：
2002-06-01
影响因子：
3.9
通讯作者：
Adair, JH
中科院分区：
文献类型：
--
作者：
Kimel, RA;Adair, JH
本研究的目的是建立机制（S）控制的氧化钇四方稳定氧化锆（Y-TZP）粉末在水悬浮液中的降解，并确定这种降解的Y-TZP的水物理化学的意义。实验是在25 ℃下将市售的Y-TZP粉末置于水悬浮液中进行的。实验研究包括通过ICP-MS分析Y-TZP在水中的水性化学，通过XRD和固态NMR测定粉末的表面和本体结构，以及通过zeta电位测定观察表面电荷的变化。本研究的目的是控制Y-TZP在水悬浮液中的表面化学，以促进分散并允许Y-TZP粉末的水处理。
The objective of this study was to establish the mechanism(s) controlling degradation of yttria-tetragonally-stabilized zirconia (Y-TZP) powder in aqueous suspensions and determine the significance of this degradation to the aqueous physical chemistry of Y-TZP. Experiments were performed on commercially available Y-TZP powder placed in aqueous suspensions at 25degreesC. Experimental investigations included analysis of the aqueous chemistry of Y-TZP in water via ICP-MS, determination of the surface and bulk structure of the powder via XRD and solid-state NMR, and observation of changes in surface charges via zeta potential determinations. The goal of this study was to control the surface chemistry of Y-TZP in aqueous suspension to promote dispersion and permit aqueous processing of Y-TZP powders.