Observation of internal pulsed current flow through the ZnO specimen in the spark plasma sintering method

被引：30

作者：

Misawa, Tatsuya ^{[1
]}

Shikatani, Noboru ^{[2
]}

Kawakami, Yuji ^{[3
]}

Enjoji, Takashi ^{[3
]}

Ohtsu, Yasunori ^{[1
]}

Fujita, Hiroharu ^{[1
]}

机构：

[1] Saga Univ, Dept Elect & Elect Engn, Fac Sci & Engn, Saga 8408502, Japan

[2] Fukuoka Inst Technol, Fac Engn, Dept Life Environm & Mat Sci, Higashi Ku, Fukuoka 8110295, Japan

[3] Ind Technol Ctr Saga, Dept Mat & Environm, Nabeshima, Saga, Japan

来源：

JOURNAL OF MATERIALS SCIENCE | 2009年 / 44卷 / 06期

关键词：

SINTERING/SYNTHESIS PROCESS; FUNDAMENTAL INVESTIGATIONS; CONSOLIDATION;

D O I：

10.1007/s10853-008-2906-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In spark plasma sintering (SPS), it is supposed that a part of the large pulsed sintering current flows into the specimen and affects the sintering behavior. To clarify the influence of the internal pulsed current that flows through the specimen during SPS, measurement of the electrical resistance of the specimen was conducted using Pt electrodes and the internal pulsed current was successfully observed using a magnetic probe during the sintering of ZnO and other materials. Two Pt electrodes were installed on the sides of a ZnO sample through a carbon die, and decrease of electrical resistance was observed with the progress of sintering. The internal current that flows through the specimen during SPS was several hundred ampere, and the ratio of the internal current to the total current was found to be dependent on the material and the progress of SPS process.

引用

页码：1641 / 1651

页数：11

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