Article
Metastability in the MgAl₂O₄-Al₂O₃ system
Proceedings of the 13th Biennial Worldwide Congress on Refractories 2013 (2013, Victoria, Canada)
Abstract
Aluminum oxide must take a spinel form (γ-Al2O3) at elevated temperatures in order for extensive solid solution to form between MgAl2O4 and α-Al2O3. The solvus line between MgAl2O4 and Al2O3 has been defined at 79.6 wt% AI2O3 at 1500°C, 83.0 wt% Al2O3 at 1600°C, and 86.5 wt% Al2O3 at 1700°C. A metastable region has been defined at temperatures up to 1700°C which could have significant implications for material processing and properties. Additionally, initial processing could have major implications on final chemistry.
Meeting Name
13th Biennial Worldwide Congress on Refractories 2013 (2013: Sep. 10-13, Victoria, Canada)
Department(s)
Materials Science and Engineering
Comments
Chapter 53
Keywords and Phrases
- Aluminum oxides,
- Elevated temperature,
- Material processing,
- Metastabilities,
- Metastable region, Aluminum
International Standard Book Number (ISBN)
978-111883703-0
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2014 The American Ceramic Society, All rights reserved.
Publication Date
9-13-2014
Publication Date
13 Sep 2014
Disciplines
Citation Information
Kelley R. Wilkerson, Jeffrey D. Smith and James G. Hemrick. "Metastability in the MgAl₂O₄-Al₂O₃ system" Proceedings of the 13th Biennial Worldwide Congress on Refractories 2013 (2013, Victoria, Canada) (2014) p. 303 - 308 Available at: http://works.bepress.com/kelley-wilkerson/2/