Metastability in the MgAl2O4-Al2O3 System

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

doi:10.1111/ijac.12294

Metastability in the MgAl₂O₄-Al₂O₃ System

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

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Aluminum oxide must take a spinel form (γ-Al₂O₃) at increased 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% Al₂O₃ 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.

Original language	English
Pages (from-to)	1020-1024
Number of pages	5
Journal	International Journal of Applied Ceramic Technology
Volume	11
Issue number	6
DOIs	https://doi.org/10.1111/ijac.12294
State	Published - Nov 1 2014

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10.1111/ijac.12294

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

abstract = "Aluminum oxide must take a spinel form (γ-Al2O3) at increased 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\% Al2O3 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.",

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

note = "Publisher Copyright: {\textcopyright} 2014 The American Ceramic Society.",

year = "2014",

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doi = "10.1111/ijac.12294",

language = "English",

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journal = "International Journal of Applied Ceramic Technology",

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T1 - Metastability in the MgAl2O4-Al2O3 System

AU - Wilkerson, Kelley R.

AU - Smith, Jeffrey D.

AU - Hemrick, James G.

PY - 2014/11/1

Y1 - 2014/11/1

N2 - Aluminum oxide must take a spinel form (γ-Al2O3) at increased 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% Al2O3 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.

AB - Aluminum oxide must take a spinel form (γ-Al2O3) at increased 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% Al2O3 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.

UR - https://www.scopus.com/pages/publications/84939472667

U2 - 10.1111/ijac.12294

DO - 10.1111/ijac.12294

M3 - Article

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SN - 1546-542X

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SP - 1020

EP - 1024

JO - International Journal of Applied Ceramic Technology

JF - International Journal of Applied Ceramic Technology

IS - 6

ER -

Metastability in the MgAl₂O₄-Al₂O₃ System

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