Thermal stability of mixed-cation alpha-sialon ceramics

Seeber, A. J. and Cheng, Y. B. (2003) Thermal stability of mixed-cation alpha-sialon ceramics. Materials Science And Engineering A-structural Materials Properties Microstructure And Processing, 339 1-2: 115-123. doi:10.1016/S0921-5093(02)00113-2

Author Seeber, A. J.
Cheng, Y. B.
Title Thermal stability of mixed-cation alpha-sialon ceramics
Formatted title
Thermal stability of mixed-cation α-sialon ceramics
Journal name Materials Science And Engineering A-structural Materials Properties Microstructure And Processing   Check publisher's open access policy
ISSN 0921-5093
Publication date 2003
Sub-type Article (original research)
DOI 10.1016/S0921-5093(02)00113-2
Volume 339
Issue 1-2
Start page 115
End page 123
Total pages 9
Place of publication Amsterdam
Publisher Elsevier
Language eng
Subject 09 Engineering
Abstract A series of alpha-sialon (alpha') compositions containing mixed stabilising cations were prepared, by introducing additional CaO to a basic Sm alpha-sialon compositions. The thermal stability of these Sm-Ca-containing alpha-sialon phases was investigated using XRD, SEM and EDXS techniques. It was found that the addition of calcium into the Sm alpha-sialon systems greatly improved the stability of the alpha-sialon phases. Calcium was found to be incorporated into the alpha-sialon structure, coexistent with the samarium, and partitioning of the calcium and samarium was observed between the alpha' phase and grain boundary phases. This indicates a technique which may be used to improve the thermal stability of the alpha' phase while maintaining good refractory phases at the gialon grain boundaries. (C) 2003 Elsevier Science B.V. All rights reserved.
Keyword Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Stabilising Cations
Heat Treatment
Temperature Stability
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Earth Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 4 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 13 Aug 2007, 13:15:41 EST