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Formation of aluminium nitride during sintering of powder injection moulded aluminium
Journal article   Peer reviewed

Formation of aluminium nitride during sintering of powder injection moulded aluminium

Damon Kent, M Qan and G B Schaffer
Powder Metallurgy, Vol.53(2), pp.118-124
2010
url
https://doi.org/10.1179/003258909X12523294330154View
Published Version

Abstract

Materials Engineering Resources Engineering and Extractive Metallurgy aluminium powder injection moulding aluminium nitride atmosphere nitrogen
A detailed transmission electron microscopy study of the structure of aluminium nitride formed during sintering of powder injection moulded aluminium is presented. A polycrystalline layer formed on Al particle surfaces exposed to a nitrogen atmosphere. This layer consisted of fine, rod-like crystallites of hexagonal AlN typically aligned normal to the Al surface. A double layer of AlN separated by a thin layer of Al was observed at the interfaces between Al grains. In this report, the structure of the nitride is characterised and its influence on sintering is discussed.

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