Journal
SCRIPTA MATERIALIA
Volume 46, Issue 3, Pages 217-221Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S1359-6462(01)01227-1
Keywords
intermetallic; composite; powder processing; fracture toughness
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A novel technique for fabricating high-temperature molybdenum-silicon-boron intermetallic composites is described. Vacuum annealing of silicide particles resulted in a loss of Si, and consequently a Mo solid solution layer, at the surfaces. Subsequent consolidation produced a microstructure of silicide particles bonded by a continuous Mo matrix. The alpha-Mo imparted significant room temperature fracture toughness. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
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