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Melt infiltration casting of bulk metallic-glass matrix composites

Published online by Cambridge University Press:  31 January 2011

R. B. Dandliker ,
R. D. Conner  and
W. L. Johnson
R. B. Dandliker
Affiliation:
W. M. Keck Laboratory of Engineering Materials, Mail Code 138-78, California Institute of Technology, Pasadena, California 91125
R. D. Conner
Affiliation:
W. M. Keck Laboratory of Engineering Materials, Mail Code 138-78, California Institute of Technology, Pasadena, California 91125
W. L. Johnson
Affiliation:
W. M. Keck Laboratory of Engineering Materials, Mail Code 138-78, California Institute of Technology, Pasadena, California 91125
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Abstract

The authors describe a technique for melt infiltration casting of composites with a metallic-glass matrix. We made rods 5 cm in length and 7 mm in diameter. The samples were reinforced by continuous metal wires, tungsten powder, or silicon carbide particulate preforms. The most easily processed composites were those reinforced with tungsten and carbon steel continuous wire reinforcement. The Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 matrix was quenched to a glass after infiltrating the reinforcement. We analyzed the microstructure of the composites by x-ray diffraction and scanning electron microscopy. The measured porosity was less than 3% and the matrix was about 97% amorphous material.

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Articles
Information
Journal of Materials Research , Volume 13 , Issue 10 , October 1998 , pp. 2896 - 2901
Copyright
Copyright © Materials Research Society 1998

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