Hydrothermal Aging Behavior of Nanocrystalline Y-TZP Ceramics

被引：49

作者：

Paul, Anish ^{[1
]}

Vaidhyanathan, Bala ^{[1
]}

Binner, Jon G. P. ^{[1
]}

机构：

[1] Univ Loughborough, Dept Mat, Loughborough LE11 3TU, Leics, England

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2011年 / 94卷 / 07期

基金：

英国工程与自然科学研究理事会;

关键词：

TETRAGONAL ZIRCONIA POLYCRYSTAL; YTTRIA-STABILIZED ZIRCONIA; FRACTURE-TOUGHNESS; GRAIN-SIZE; MECHANICAL-PROPERTIES; PHASE-TRANSFORMATION; VICKERS INDENTATION; ZRO2; POLYCRYSTALS; DEGRADATION; WATER;

D O I：

10.1111/j.1551-2916.2010.04341.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The influence of grain size and yttria content on the hydrothermal aging behavior of yttria-stabilized zirconia ceramics has been investigated via the preparation of genuine, fully dense nanozirconia ceramics with <100 nm grain size by two-step sintering. The samples were aged at different temperatures for varying periods of time and XRD and micro-Raman spectroscopy have been used to monitor the aging process while the hardness of the samples was used as a measure of the deterioration in the physical properties. The results were compared with those of a commercial submicrometer 3YSZ zirconia sample subjected to the same aging treatment and characterization. Nano3YSZ with <100 nm grain size did not exhibit degradation, whereas the submicrometer 3YSZ samples underwent severe degradation.

引用

页码：2146 / 2152

页数：7

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