Influences of Particle Size and Single Sample Weight of W Powders on the Properties of W-10Cu Composite Materials for Electronic Packing AITranslate

4Carl Zweben. Advances in composite materials or thermal management in electronic packaging[J]. JOM, 1998,50(6) : 47-51.

5Sethi G, Hauck E, German R M. High velocity compaction compared with conventional compaction [J]. Materials Science and Technology, 2006,22 (8) 955-959.

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Chinese Library Classification Number:TG146.411[金属学及工艺—金属材料]

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Abstraet..W-10Cu composite materials were prepared by high velocity compaction-cold forging-copper infil tration. Meanwhile,investigation was made on the influences of particle size and single sample weight of W powders on the microstructure and properties of the materials. The results show that the relative density of W skeleton decreases with the increase of single sample weight before and after cold forging. Upon compaction of the mixed powders,W skeleton has the greatest relative density,yet it is not satisfactory to W-10Cu composite material,of which the relative density should be no less than 81%. By cold forging,the maximum relative density of all the types o{ W skeletons can reach 81%, and among them W skeleton com- pacted with medium-grained powders has the greatest relative density. The W-10Cu composite materials with dense and uniform microstructure can be prepared by high velocity compaction-cold forging-copper in- filtration with three types of powders and they can also meet the performance requirement for electronic packaging materials. Keywords ： W-10Cu ; W powders ; particle size; single sample weight; W skeleton; electronic packing