Microstructure of polycrystalline MgO penetrated by a silicate liquid

Sundar Ramamurthy; Michael P. Mallamaci; Catherine M. Zimmerman; C. Barry Carter; Peter R. Duncombe; Thomas M. Shaw

doi:10.1017/S1431927696211134

Microstructure of polycrystalline MgO penetrated by a silicate liquid

Sundar Ramamurthy
, Michael P. Mallamaci
, Catherine M. Zimmerman
, C. Barry Carter
, Peter R. Duncombe
, Thomas M. Shaw

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

16 Scopus citations

Abstract

Dense, polycrystalline MgO was infiltrated with monticellite (CaMgSiO 4) liquid to study the penetration of liquid along the grain boundaries of MgO. Grain growth was found to be restricted with increasing amounts of liquid. The inter-granular regions were generally found to be comprised of a two-phase mixture: crystalline monticellite and a glassy phase rich in the impurities present in the starting MgO material. MgO grains act as seeding agents for the crystallization of monticellite. The location and composition of the glassy phase with respect to the MgO grains emphasizes the role of intergranular liquid during the devitrification process in "snowplowing" impurities present in the matrix. Copyright © 1996 by the Microscopy Society of America.

Original language	English
Pages (from-to)	113-128
Number of pages	16
Journal	Microscopy and Microanalysis
Volume	2
Issue number	3
DOIs	https://doi.org/10.1017/S1431927696211134
State	Published - Jun 1 1996
Externally published	Yes

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title = "Microstructure of polycrystalline MgO penetrated by a silicate liquid",

abstract = "Dense, polycrystalline MgO was infiltrated with monticellite (CaMgSiO 4) liquid to study the penetration of liquid along the grain boundaries of MgO. Grain growth was found to be restricted with increasing amounts of liquid. The inter-granular regions were generally found to be comprised of a two-phase mixture: crystalline monticellite and a glassy phase rich in the impurities present in the starting MgO material. MgO grains act as seeding agents for the crystallization of monticellite. The location and composition of the glassy phase with respect to the MgO grains emphasizes the role of intergranular liquid during the devitrification process in {"}snowplowing{"} impurities present in the matrix. Copyright {\textcopyright} 1996 by the Microscopy Society of America.",

author = "Sundar Ramamurthy and Mallamaci, \{Michael P.\} and Zimmerman, \{Catherine M.\} and Carter, \{C. Barry\} and Duncombe, \{Peter R.\} and Shaw, \{Thomas M.\}",

year = "1996",

month = jun,

day = "1",

doi = "10.1017/S1431927696211134",

language = "English",

volume = "2",

pages = "113--128",

journal = "Microscopy and Microanalysis",

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publisher = "Oxford University Press",

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TY - JOUR

T1 - Microstructure of polycrystalline MgO penetrated by a silicate liquid

AU - Ramamurthy, Sundar

AU - Mallamaci, Michael P.

AU - Zimmerman, Catherine M.

AU - Carter, C. Barry

AU - Duncombe, Peter R.

AU - Shaw, Thomas M.

PY - 1996/6/1

Y1 - 1996/6/1

N2 - Dense, polycrystalline MgO was infiltrated with monticellite (CaMgSiO 4) liquid to study the penetration of liquid along the grain boundaries of MgO. Grain growth was found to be restricted with increasing amounts of liquid. The inter-granular regions were generally found to be comprised of a two-phase mixture: crystalline monticellite and a glassy phase rich in the impurities present in the starting MgO material. MgO grains act as seeding agents for the crystallization of monticellite. The location and composition of the glassy phase with respect to the MgO grains emphasizes the role of intergranular liquid during the devitrification process in "snowplowing" impurities present in the matrix. Copyright © 1996 by the Microscopy Society of America.

AB - Dense, polycrystalline MgO was infiltrated with monticellite (CaMgSiO 4) liquid to study the penetration of liquid along the grain boundaries of MgO. Grain growth was found to be restricted with increasing amounts of liquid. The inter-granular regions were generally found to be comprised of a two-phase mixture: crystalline monticellite and a glassy phase rich in the impurities present in the starting MgO material. MgO grains act as seeding agents for the crystallization of monticellite. The location and composition of the glassy phase with respect to the MgO grains emphasizes the role of intergranular liquid during the devitrification process in "snowplowing" impurities present in the matrix. Copyright © 1996 by the Microscopy Society of America.

UR - https://www.scopus.com/pages/publications/76749104190

U2 - 10.1017/S1431927696211134

DO - 10.1017/S1431927696211134

M3 - Article

SN - 1431-9276

VL - 2

SP - 113

EP - 128

JO - Microscopy and Microanalysis

JF - Microscopy and Microanalysis

IS - 3

ER -

Microstructure of polycrystalline MgO penetrated by a silicate liquid

Abstract

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