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Published October 1998 | Published
Journal Article Open

Melt infiltration casting of bulk metallic-glass matrix composites


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.

Additional Information

© 1998 MRS. (Received 5 May 1997; accepted 5 January 1998) This report is based upon work supported in part by the U.S. Army Research Office under Grant No. DAAH04-95-1-0233. We would like to thank M. Tenhover and H. Choi-Yim for useful discussions. In addition, we would like to thank Dr. Tenhover and Carborundum Corporation for supplying silicon carbide fibers and preforms.

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