Modeling the effect of pulsing on the spark plasma sintering of silicon nitride materials

被引：20
|
作者：
Belmonte, M. [1 ]
Osendi, M. I. [1 ]
Miranzo, P. [1 ]
机构：
[1] Inst Ceram & Glass CSIC, Madrid 28049, Spain
来源：
SCRIPTA MATERIALIA | 2011年 / 65卷 / 03期
关键词：
Liquid-phase sintering; Spark plasma sintering; Ceramics; Wetting; Silicon nitride; ELECTRIC-FIELD; CERAMICS; ZIRCONIA;
D O I：
10.1016/j.scriptamat.2011.04.029
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of the pulse peak voltage on the initial particle rearrangement stage of liquid-phase spark plasma sintering of silicon nitride is studied by varying the DC on:off pulse pattern. The shrinkage rate vs. temperature curves showed that the intensity and position of the rearrangement stage peak were dependent on the pulse peak voltage. An alternative sintering mechanism based on the electrowetting phenomenon is proposed to explain the experimental data. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：273 / 276
页数：4
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