Grain characteristics of nanocrystalline ZrO2 powders

被引：6
|
作者：
Yin, Huiyan [1 ]
Han, Minfang [1 ]
机构：
[1] China Univ Mining & Technol, Union Res Ctr Fuel Cell, Beijing 100083, Peoples R China
来源：
HIGH-PERFORMANCE CERAMICS IV, PTS 1-3 | 2007年 / 336-338卷
关键词：
ZrO2 nanocrystalline powders; soft agglomerates; hard agglomerates;
D O I：
10.4028/www.scientific.net/KEM.336-338.2558
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 grain characteristics of four kinds of ZrO2 nanocrystalline powders were manifested and discussed in this paper. The grain size of sample 1 tested by XRD, TEM and BET is consistent. The agglomeration coefficient of Sample 1 is higher, about 62.5, and the span of grain distribution is 14.58. The grain sizes of Sample 2 and 3 tested by XRD, TEM and BET are different. These differences identify the crystalline domain including 2 similar to 3 unite, which make the departure spheres in TEM. There are more soft agglomerates in Sample 2 with the agglomeration coefficient of 25.71 and the span of grain distribution being 18.94 than that in Sample 3 with the agglomeration coefficient of 6.89 and the span of grain distribution being 8.91. The grain sizes of Sample 4 tested by XRD, TEM and BET are obviously different. That identifies the large hard agglomerates.
引用
收藏
页码：2558 / +
页数：2
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