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Structure and mechanical properties of Al–B composite powder

✍ Scribed by F Muktepavela; I Manika; V Mironovs

Publisher
Elsevier Science
Year
1997
Weight
89 KB
Volume
18
Category
Article
ISSN
0261-3069

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✦ Synopsis

Al᎐B composite powder has been obtained by crushing pieces of composite material presenting ( ) industrial waste. Structural peculiarities and microhardness of separate powder particles d ; 1 mm have been investigated. Original design of high precision microhardness tester made it possible to detect the properties of powder both in near-surface layer and below it. The powder represents a new ( ) structurally non-homogenous material with the increased microhardness 1.5 GPa which grows up to 4 GPa in near-surface layers. Stable oxide compounds are formed on internal surfaces and defects of the aluminium alloy. Powder compacts were obtained. Adhesion on Al᎐B and Al᎐Al interfaces at various temperatures and pressures were investigated. The applications of the powder compacts were considered.

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