Effects of Pressure Application Method on Transparency of Spark Plasma Sintered Alumina

被引：60
作者：
Grasso, Salvatore [1 ,2 ,3 ]
Hu, Chunfeng [2 ,3 ]
Maizza, Giovanni [4 ]
Kim, Byung-Nam [2 ,3 ]
Sakka, Yoshio [1 ,2 ,3 ]
机构：
[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Ibaraki 3050047, Japan
[2] Natl Inst Mat Sci, World Premier Int Res Ctr Initiat WPI Initiat Mat, Ibaraki 3050047, Japan
[3] Natl Inst Mat Sci, Nano Ceram Ctr, Ibaraki 3050047, Japan
[4] Politecn Torino, Dipartimento Sci Mat & Ingn Chim, I-10129 Turin, Italy
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2011年 / 94卷 / 05期
关键词：
MICROSTRUCTURE; PARAMETERS; HARDNESS; POWDER;
D O I：
10.1111/j.1551-2916.2010.04274.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：
Commercially available alumina powder was consolidated at 1150 degrees C by spark plasma sintering at the heating rate of 100 degrees C/min. The effects of the pressure application mode were examined with respect to microstructure, porosity, and transparency. A finite-element simulation was developed in order to understand the relationship between sample homogeneity and its temperature distribution. The effects of the temperature probing point on the microstructure were investigated. The application of two steps pressure was found effective to obtain homogeneously densified translucent alumina samples at high heating rate.
引用
收藏
页码：1405 / 1409
页数：5
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