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ASM Handbook

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials

By
ASM Handbook Committee
ASM Handbook Committee
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ASM International
Volume
2
ISBN electronic:
978-1-62708-162-7
Publication date:
1990
Book Chapter

Electrical Contact Materials

By
Yuan-Shou Shen
Yuan-Shou Shen
Revising author
Engelhard Corporation
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;
Pat Lattari
Pat Lattari
Revising author
Texas Instruments, Inc.
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;
Jeffrey Gardner
Jeffrey Gardner
Revising author
Texas Instruments, Inc.
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;
Harold Wiegard
Harold Wiegard
Revising author
J.M. Ney Company
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Published:
1990
Page range:
840 - 868

Abstract

Electrical contacts are metal devices that make and break electrical circuits. This Article commences with information on materials selection criteria and failure modes of make-break contacts. It describes the property requirements for make-break arcing contacts, namely, electrical conductivity, mechanical properties, chemical properties, fabrication properties, and thermal properties. The Article presents a brief note on brush contact materials and their interdependence factors for sliding contacts. It also describes the type of commercial contact materials for electrical contacts, namely, copper metals, silver metals, gold metals, metals of the platinum group, precious metal overlays, tungsten and molybdenum, aluminum, and composite materials. Finally, the Article provides information on composite manufacturing methods, and tabulates the physical, and mechanical properties of electrical contact materials, including copper, silver, gold, platinum, palladium, and composites.

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Yuan-Shou Shen, Pat Lattari, Jeffrey Gardner, Harold Wiegard, 1990. "Electrical Contact Materials", Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook Committee

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