Influence of additives on the morphology of α-Al2O3 platelets synthesized in a molten salt

被引：0
|
作者：
Dai Yue-qin [1 ]
Zhu Li-hui [1 ]
Huang Qing-wei [1 ]
机构：
[1] Shanghai Univ, Shanghai Key Lab Modern Met & Mat Proc, Shanghai 200072, Peoples R China
来源：
JOURNAL OF CERAMIC PROCESSING RESEARCH | 2010年 / 11卷 / 02期
关键词：
Platelets; alpha-Al2O3; Molten salt synthesis; Additives; ALPHA-ALUMINA PLATELETS; GAMMA-ALUMINA; SULFATE FLUX; TRANSFORMATION;
D O I：
暂无
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：
Trisodium phosphate (Na3PO4 center dot 12H(2)O) and titanyl sulfate (TiOSO4) were chosen to study the influence of additives on the morphology of alpha-Al2O3 platelets synthesized by molten salt synthesis. When Na3PO4 center dot 12H(2)O is added, alpha-Al2O3 platelets become thin and quite irregular. Besides, less overlapped particles can be found. When TiOSO4 is added, regular hexagonal alpha-Al2O3 platelets with a decreased size and increased thickness are obtained. When 0.51 wt% Na3PO4 center dot 12H(2)O and 12 wt% TiOSO4 are added, alpha-Al2O3 platelets with a regular shape and an aspect ratio of 12.5 are developed. The mechanism of Na3PO4 center dot 12H(2)O and TiOSO4 on the morphology of alpha-Al2O3 platelets is also discussed in this paper.
引用
收藏
页码：254 / 258
页数：5
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