Effect of porosity on thermal and electrical properties of polycrystalline bulk ZrN prepared by spark plasma sintering

被引：84

作者：

Adachi, Jun ^{[1
]}

Kurosaki, Ken ^{[1
]}

Uno, Masayoshi ^{[1
]}

Yamanaka, Shinsuke ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Div Sustainable Energy & Environm Engn, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 432卷 / 1-2期

关键词：

nitride materials; thermal expansion; thermal conductivity; electrical conductivity; porosity dependence;

D O I：

10.1016/j.jallcom.2006.05.115

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two kinds of polycrystalline zirconium nitride (Zi-N) pellets were prepared by a spark plasma sintering (SPS). Thermal and electrical properties were measured from room temperature to 1473 and 1000 K, respectively. Thermal expansion is almost independent of porosity. On the other hand, electrical and thermal conductivities systematically decreased with increasing porosity. Porosity dependences of electrical and thermal conductivities are studied through the Maxwell-Eucken's equation. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：7 / 10

页数：4

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