Effect of green density on subsequent densification and grain growth of nanophase SnO2 powder during isothermal sintering

Jae Pyoung Ahn; Moo Young Huh; Jong Ku Park

doi:10.1016/S0965-9773(97)00195-5

Effect of green density on subsequent densification and grain growth of nanophase SnO₂ powder during isothermal sintering

Jae Pyoung Ahn, Moo Young Huh, Jong Ku Park

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Abstract

The effect of green density on the subsequent densification and grain growth of nanophase SnO₂ powder compacts during isothermal sintering has been investigated. Deagglomeration of the aggregates by applied pressure during compaction was proved to be crucial in subsequent densification and grain growth of nanophase SnO₂ powder during sintering. A loose green compact with low coordination number exhibited rapid densification and grain growth in the initial sintering stage, while a dense green compact with high coordination number showed steady densification and very slow grain growth. The fine pores homogeneously dispersed in the dense green compact of the nanophase powder had a strong pinning effect on the grain boundary motion.

Original language	English
Pages (from-to)	637-643
Number of pages	7
Journal	Nanostructured Materials
Volume	8
Issue number	5
DOIs	https://doi.org/10.1016/S0965-9773(97)00195-5
Publication status	Published - 1997 Aug

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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title = "Effect of green density on subsequent densification and grain growth of nanophase SnO2 powder during isothermal sintering",

abstract = "The effect of green density on the subsequent densification and grain growth of nanophase SnO2 powder compacts during isothermal sintering has been investigated. Deagglomeration of the aggregates by applied pressure during compaction was proved to be crucial in subsequent densification and grain growth of nanophase SnO2 powder during sintering. A loose green compact with low coordination number exhibited rapid densification and grain growth in the initial sintering stage, while a dense green compact with high coordination number showed steady densification and very slow grain growth. The fine pores homogeneously dispersed in the dense green compact of the nanophase powder had a strong pinning effect on the grain boundary motion.",

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AU - Ahn, Jae Pyoung

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AU - Park, Jong Ku

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AB - The effect of green density on the subsequent densification and grain growth of nanophase SnO2 powder compacts during isothermal sintering has been investigated. Deagglomeration of the aggregates by applied pressure during compaction was proved to be crucial in subsequent densification and grain growth of nanophase SnO2 powder during sintering. A loose green compact with low coordination number exhibited rapid densification and grain growth in the initial sintering stage, while a dense green compact with high coordination number showed steady densification and very slow grain growth. The fine pores homogeneously dispersed in the dense green compact of the nanophase powder had a strong pinning effect on the grain boundary motion.

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Effect of green density on subsequent densification and grain growth of nanophase SnO₂ powder during isothermal sintering

Abstract

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