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Preparation of hot-pressed silicon-germanium ingots: Part II - Reduction of chill cast material

Authors
Journal
Materials Research Bulletin
0025-5408
Publisher
Elsevier
Publication Date
Volume
9
Issue
6
Identifiers
DOI: 10.1016/0025-5408(74)90108-1

Abstract

Abstract Nine different reduction techniques were evaluated for reducing Si-Ge chill cast alloys. Planetary ball milling with agate vessels and balls proved best for producing large quantities of high purity Si-Ge alloy powders. With the planetary ball mill Si-rich alloys were more difficult to reduce than Ge-rich alloys and the addition of dopant (boron or phosphorus) decreased the grinding time necessary for comparable particle size distributions.

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