STUDY OF THE VOLUME FRACTION, TEMPERATURE, AND PRESSURE-DEPENDENCE OF THE RESISTIVITY IN A CERAMIC POLYMER COMPOSITE USING A GENERAL EFFECTIVE MEDIA THEORY EQUATION

被引：30

作者：

BLASZKIEWICZ, M ^{[1
]}

MCLACHLAN, DS ^{[1
]}

NEWNHAM, RE ^{[1
]}

机构：

[1] UNIV WITWATERSRAND,DEPT PHYS,JOHANNESBURG 2001,SOUTH AFRICA

来源：

JOURNAL OF MATERIALS SCIENCE | 1991年 / 26卷 / 21期

关键词：

D O I：

10.1007/BF01130131

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A quantitative general effective media (GEM) equation is used to describe quantitatively the resistivity of an Fe3O4-epoxy composite system over a large range of volume fractions in terms of the resistivities of each component and two percolation morphology parameters. One parameter is the critical (percolation) volume fraction, phi-c, and the other is an exponent, t. Preliminary models, also based on the GEM equation, are used to describe the positive temperature coefficient of resistivity (PTC) and the piezoresistivity (uniaxial pressure) of the composite when the composition is near the percolation threshold.

引用

页码：5899 / 5903

页数：5

共 19 条

[1]

BLASZKIEWICZ M, IN PRESS POLYM SCI E

[2] PIEZORESISTIVITY OF HETEROGENEOUS SOLIDS [J].

CARMONA, F ;

CANET, R ;

DELHAES, P .

JOURNAL OF APPLIED PHYSICS, 1987, 61 (07) :2550-2557

[3] THE MEASUREMENT AND COMPARATIVE-ANALYSIS OF THE ELECTRICAL AND THERMAL-CONDUCTIVITIES, PERMEABILITY AND YOUNGS MODULUS OF SINTERED NICKEL [J].

DEPREZ, N ;

MCLACHLAN, DS ;

SIGALAS, I .

SOLID STATE COMMUNICATIONS, 1988, 66 (08) :869-872

[4]

GURLAND J, 1966, T METALL SOC AIME, V236, P642

[5] INFLUENCE OF PARTICLE-SIZE RATIO ON CONTINUITY OF AGGREGATES [J].

KUSY, RP .

JOURNAL OF APPLIED PHYSICS, 1977, 48 (12) :5301-5305

[6]

Landauer R., 1978, AIP Conference Proceedings, P2, DOI 10.1063/1.31150

[7] INFLUENCE OF PARTICLE SIZE ON ELECTRICAL RESISTIVITY OF COMPACTED MIXTURES OF POLYMERIC AND METALLIC POWDERS [J].

MALLIARIS, A ;

TURNER, DT .

JOURNAL OF APPLIED PHYSICS, 1971, 42 (02) :614-+

[8] MORPHOLOGY DEPENDENCE OF THE RESISTIVITY AND MEISSNER CURVES IN 2-PHASE SUPERCONDUCTORS [J].

MCLACHLAN, DS .

SOLID STATE COMMUNICATIONS, 1989, 69 (09) :925-929

[9] EQUATION FOR THE CONDUCTIVITY OF HETEROGENEOUS BINARY MEDIA [J].

MCLACHLAN, DS .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1987, 26 :901-902

[10] ELECTRICAL-RESISTIVITY OF COMPOSITES [J].

MCLACHLAN, DS ;

BLASZKIEWICZ, M ;

NEWNHAM, RE .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (08) :2187-2203

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