Abstract
Powder compaction has two equally important aspects: the elimination of pores and the creation of bonds between the particles. Important bonding mechanisms are cold welding and mechanical interlocking of particle surfaces. The first requires plastic flew in order to break the surface oxide, the second depends on irregular surface geometry. Hard, smooth particles do not usually permit the action of either of these mechanisms; after compaction, they simply fall apart again. Such powders must be contained in capsules and, after compaction, must be bonded by sintering or hot pressing. This has in fact become the normal fabrication route for superalloy and tool steel powders.
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© 1986 Martinus Nijhoff Publishers, Dordrecht
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Fischmeister, H., Arzt, E. (1986). The Compaction of Rapidly Solidified Materials. In: Sahm, P.R., Jones, H., Adam, C.M. (eds) Science and Technology of the Undercooled Melt. Nato Asi Series, vol 114. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4456-5_9
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DOI: https://doi.org/10.1007/978-94-009-4456-5_9
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