1B12 Al-Zr-C 系複合体の作製と特性

概要

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Composite in the system Al-Zr-C, with about 95% relative density, was fabricated by heating the powder mixed compact consisting of Al and ZrC (5 : 1 mol%) in Ar at temperatures above 1200℃. It was composed of Al, Al_3Zr, ZrC and AlZrC_2. The Al_3Zr grain exhibited plate-like shape and its size increased with incresing temperature. The average three-point bending strength of the composites was 140 ∿ 190MPa and the maximum strength was 203 MPa in the composite obtained at 1300℃ for 1h. Moreover, the composites showed high oxidation resistivity to air up to 1000℃.
1997-10-02