放电等离子烧结工艺对不导电材料整体电阻的影响

中国机械工程 ›› 2015, Vol. 26 ›› Issue (18): 2524-2527.

放电等离子烧结工艺对不导电材料整体电阻的影响

骆俊廷1,2;刘永康1;申江龙1;张春祥2

1.先进锻压成形技术与科学教育部重点实验室（燕山大学）,秦皇岛,066004
2.燕山大学亚稳材料制备技术与科学国家重点实验室,秦皇岛,066004

出版日期:2015-09-25 发布日期:2015-09-23
基金资助:
燕山大学青年教师自主研究计划资助项目（１4LA002）

Influences of Spark Plasma Sintering Process on Overall Resistance of Non-conductive Materials

Luo Junting1,2;Liu Yongkang1;Shen Jianglong1;Zhang Chunxiang2

1.Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan University),Ministry of Education of China,Qinhuangdao,Hebei,066004
2.State Key Laboratory of Metastable Materials Science and Technology,Yanshan niversity,Qinhuangdao,Hebei,066004

Online:2015-09-25 Published:2015-09-23

摘要/Abstract

摘要：

基于Si3N4纳米陶瓷放电等离子烧结(SPS)试验数据,研究了不导电材料烧结过程中烧结系统整体电阻的变化规律。结果表明:烧结温度与烧结粉体高度是影响烧结系统整体电阻的两大因素，在烧结的升温阶段，电阻随着温度的升高和粉体高度的减小逐渐减小，当粉体烧结致密后，如果烧结温度继续升高，则电阻逐渐增大。根据烧结试验结果，得到了总电阻随烧结温度与粉体初始高度的变化曲线，并用SiC陶瓷材料的SPS试验数据对所拟合公式进行了验证，证明了该公式对不导电材料在SPS烧结过程中烧结系统整体电阻变化规律的适用性。

关键词: Si3N4, 纳米陶瓷, 不导电材料, 放电等离子烧结, 整体电阻

Abstract:

The overall resistance variation of sintering system on non-conductive materials in spark plasma sintering was studied based on experimental data of Si3N4 nano-ceramic.Results show that sintering temperature and the height of the initial powder are the two key factors that affect the overall resistance.In the heating stage,the overall resistance gradually decreases with the rising of temperature and reducing of initial powder height,but when the powder sintering,if the sintering temperature continues to raise,the overall resistance increases gradually.According to the sintering test results,the curve of overall resistance with the initial powder height and the sintering temperature was
obtained.And with the SPS test data of SiC ceramic material on the fitting formula was verified, the applicability of the formula for the spark plasma sintering of non-conductive material was demonstrated.

Key words: Si3N4, nano-ceramic, non-conductive material, spark plasma sintering(SPS), overall resistance

中图分类号:

TF124

骆俊廷, 刘永康, 申江龙, 张春祥. 放电等离子烧结工艺对不导电材料整体电阻的影响[J]. 中国机械工程, 2015, 26(18): 2524-2527.

Luo Junting, Liu Yongkang, Shen Jianglong, Zhang Chunxiang. Influences of Spark Plasma Sintering Process on Overall Resistance of Non-conductive Materials[J]. China Mechanical Engineering, 2015, 26(18): 2524-2527.

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