Journal Published Online: 01 October 1995
Volume 17, Issue 4

Electrodeposited Cobalt-Tungsten as a Diffusion Barrier Between Graphite Fibers and Nickel

CODEN: JCTRER

Abstract

An electrodeposited cobalt alloy coating having a composition of 7.1 ± 0.8 at % tungsten was developed to serve as a diffusion barrier between graphite fibers and nickel. A nickel matrix was electrodeposited around the fibers, and the resulting composite was annealed in vacuum under various time/temperature conditions. The coating was shown to inhibit interdiffusion for up to 24 h at 800°C. This represents an improvement of 200° over the uncoated fibers.

Author Information

Wheeler, NS
University of Virginia, Charlottesville, VA National Institute of Standards and Technology, Gaithersburg, MD
Lashmore, DS
National Institute of Standards and Technology, Gaithersburg, MD
Pages: 7
Price: $25.00
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Stock #: CTR10450J
ISSN: 0884-6804
DOI: 10.1520/CTR10450J