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Compact Coherency and the Classification of Compactable and Non-compactable Materials from Compression/compaction Curves by Nayland Stanley-Wood is a Engineering article available to read on EtoBox.

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The relationship between uniaxial stress on an assembly ofparticles inan instrumented mould and the resultant compressed powder volume has been examined to identify the sequential changes inthe assembly due to particle rearrangement, formation of support structures, deformation and, ultimately, bulk compression. Materials were selected which were either non-compactable and non-coherent (polypropylene and polystyrene) or compactable coherent plastic (polyethylene), plastic-like (sodium chloride) and fragmentary (sugar and dicalcium phosphate). Differentiation of the compaction/compress profiles, obtained from a computer-interfaced and instrumented uniaxial compression assembly, classified the materials into compactable and non-compact groups. These characteristic groups extended and modified the classification initially proposed byWalker. 1.INTRODUCTION Because of the wide variety of materials densified throughout the different scientific and engineering disciplines, the number of equations generated to describe such a range of densification mechanisms is extreme. Kawakita and Ludde [1]and MacLeod [2] have surveyed many of the empirical and semi-theoretical equations which have been

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Author

Nayland Stanley-Wood

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0921-8831)

Published

1993

Language

EN

Field

Engineering (Physical Sciences)