Metastability in the MgAl2O4-Al2O3 system

Kelley R. Wilkerson; Jeffrey D. Smith; James G. Hemrick

doi:10.1002/9781118837009.ch53

Metastability in the MgAl₂O₄-Al₂O₃ system

Kelley R. Wilkerson, Jeffrey D. Smith, James G. Hemrick

Mechanical Properties and Mechanics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Aluminum oxide must take a spinel form (7-Al₂O₃) at elevated temperatures in order for extensive solid solution to form between MgAl₂O₄ and OÎ-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% A1₂O₃ 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.

Original language	English
Title of host publication	Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013
Editors	Dana G. Goski, Jeffrey D. Smith
Publisher	John Wiley and Sons Inc.
Pages	303-308
Number of pages	6
ISBN (Electronic)	9781118837030
DOIs	https://doi.org/10.1002/9781118837009.ch53
State	Published - 2014
Event	13th Biennial Worldwide Congress on Refractories 2013 - Victoria, Canada Duration: Sep 10 2013 → Sep 13 2013

Publication series

Name	Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013

Conference

Conference	13th Biennial Worldwide Congress on Refractories 2013
Country/Territory	Canada
City	Victoria
Period	09/10/13 → 09/13/13

Access to Document

10.1002/9781118837009.ch53

Cite this

Wilkerson, K. R., Smith, J. D., & Hemrick, J. G. (2014). Metastability in the MgAl₂O₄-Al₂O₃ system. In D. G. Goski, & J. D. Smith (Eds.), Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013 (pp. 303-308). (Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013). John Wiley and Sons Inc.. https://doi.org/10.1002/9781118837009.ch53

Wilkerson, Kelley R. ; Smith, Jeffrey D. ; Hemrick, James G. / Metastability in the MgAl₂O₄-Al₂O₃ system. Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013. editor / Dana G. Goski ; Jeffrey D. Smith. John Wiley and Sons Inc., 2014. pp. 303-308 (Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013).

@inproceedings{40831ca244cf4d6c9b1c38c556b29c18,

title = "Metastability in the MgAl2O4-Al2O3 system",

abstract = "Aluminum oxide must take a spinel form (7-Al2O3) at elevated temperatures in order for extensive solid solution to form between MgAl2O4 and O{\^I}-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% A12O3 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.",

author = "Wilkerson, {Kelley R.} and Smith, {Jeffrey D.} and Hemrick, {James G.}",

note = "Publisher Copyright: {\textcopyright} 2014 The American Ceramic Society.; 13th Biennial Worldwide Congress on Refractories 2013 ; Conference date: 10-09-2013 Through 13-09-2013",

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doi = "10.1002/9781118837009.ch53",

language = "English",

series = "Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013",

publisher = "John Wiley and Sons Inc.",

pages = "303--308",

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booktitle = "Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013",

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Wilkerson, KR, Smith, JD & Hemrick, JG 2014, Metastability in the MgAl₂O₄-Al₂O₃ system. in DG Goski & JD Smith (eds), Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013. Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013, John Wiley and Sons Inc., pp. 303-308, 13th Biennial Worldwide Congress on Refractories 2013, Victoria, Canada, 09/10/13. https://doi.org/10.1002/9781118837009.ch53

Metastability in the MgAl₂O₄-Al₂O₃ system. / Wilkerson, Kelley R.; Smith, Jeffrey D.; Hemrick, James G.
Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013. ed. / Dana G. Goski; Jeffrey D. Smith. John Wiley and Sons Inc., 2014. p. 303-308 (Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - Aluminum oxide must take a spinel form (7-Al2O3) at elevated temperatures in order for extensive solid solution to form between MgAl2O4 and OÎ-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% A12O3 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.

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Wilkerson KR, Smith JD, Hemrick JG. Metastability in the MgAl₂O₄-Al₂O₃ system. In Goski DG, Smith JD, editors, Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013. John Wiley and Sons Inc. 2014. p. 303-308. (Proceedings of the Unified International Technical Conference on Refractories, UNITECR 2013). doi: 10.1002/9781118837009.ch53