Grain Refining In Spark Plasma Sintering Al2O3 Ceramics

Keywords

Al O 2 3; Microstructure refining; Nanostructure; Spark plasma sintering

Abstract

The paper reports the effect of starting powder size and sintering temperature on the grain refining in spark plasma sintering Al2O3. It was found that the grain refining effect only occurred for the starting particles larger than a certain size. The grain size increased with increasing sintering temperature. The grain refining is likely caused by the rearrangement of dislocations through a thermo-mechanical fatigue process. It suggested that nanostructured alumina ceramics could be synthesized from micro-sized powders by optimizing the particle size and sintering temperature.

Publication Date

2-15-2015

Publication Title

Journal of Alloys and Compounds

Volume

622

Number of Pages

596-600

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.jallcom.2014.10.113

Socpus ID

84910622428 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84910622428

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