Metastable solid solution extension of mullite by rapid solidification

John P. Pollinger; Gary L. Messing

doi:10.1557/JMR.1988.0375

Metastable solid solution extension of mullite by rapid solidification

John P. Pollinger
, Gary L. Messing

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

5 Scopus citations

Abstract

The melt self-quenching technique has been used to examine the metastable solid solution extension of mullite formed from rapidly solidified A1₂O₃ • SiO₂ melts. Increasing melt cooling rates were seen to increase the A1₂O₃ content of mullite, decrease the amount of mullite precipitating, and decrease the melt compositional range over which mullite forms. The maximum mullite A1₂O₃ content achieved was 77.3 mol % for cooling rates between 10³ and 10⁵ K/s. The highest A1₂O₃ content mullite also exhibited very similar a₀ and b₀lattice parameters indicating a structure close to tetragonal symmetry (equilibrium mullite is orthorhombic).

Original language	English (US)
Pages (from-to)	375-379
Number of pages	5
Journal	Journal of Materials Research
Volume	3
Issue number	2
DOIs	https://doi.org/10.1557/JMR.1988.0375
State	Published - Apr 1988

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/JMR.1988.0375

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title = "Metastable solid solution extension of mullite by rapid solidification",

abstract = "The melt self-quenching technique has been used to examine the metastable solid solution extension of mullite formed from rapidly solidified A12O3 • SiO2 melts. Increasing melt cooling rates were seen to increase the A12O3 content of mullite, decrease the amount of mullite precipitating, and decrease the melt compositional range over which mullite forms. The maximum mullite A12O3 content achieved was 77.3 mol \% for cooling rates between 103 and 105 K/s. The highest A12O3 content mullite also exhibited very similar a0 and b0lattice parameters indicating a structure close to tetragonal symmetry (equilibrium mullite is orthorhombic).",

author = "Pollinger, \{John P.\} and Messing, \{Gary L.\}",

year = "1988",

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doi = "10.1557/JMR.1988.0375",

language = "English (US)",

volume = "3",

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AU - Pollinger, John P.

AU - Messing, Gary L.

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N2 - The melt self-quenching technique has been used to examine the metastable solid solution extension of mullite formed from rapidly solidified A12O3 • SiO2 melts. Increasing melt cooling rates were seen to increase the A12O3 content of mullite, decrease the amount of mullite precipitating, and decrease the melt compositional range over which mullite forms. The maximum mullite A12O3 content achieved was 77.3 mol % for cooling rates between 103 and 105 K/s. The highest A12O3 content mullite also exhibited very similar a0 and b0lattice parameters indicating a structure close to tetragonal symmetry (equilibrium mullite is orthorhombic).

AB - The melt self-quenching technique has been used to examine the metastable solid solution extension of mullite formed from rapidly solidified A12O3 • SiO2 melts. Increasing melt cooling rates were seen to increase the A12O3 content of mullite, decrease the amount of mullite precipitating, and decrease the melt compositional range over which mullite forms. The maximum mullite A12O3 content achieved was 77.3 mol % for cooling rates between 103 and 105 K/s. The highest A12O3 content mullite also exhibited very similar a0 and b0lattice parameters indicating a structure close to tetragonal symmetry (equilibrium mullite is orthorhombic).

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DO - 10.1557/JMR.1988.0375

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EP - 379

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JF - Journal of Materials Research

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Metastable solid solution extension of mullite by rapid solidification

Abstract

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