Phase transformation in nanometer-sized γ-alumina by mechanical milling

Yiguang Wang; C. Suryanarayana; Linan An

doi:10.1111/j.1551-2916.2005.00105.x

Phase transformation in nanometer-sized γ-alumina by mechanical milling

Yiguang Wang
, C. Suryanarayana
, Linan An^*

^*Corresponding author for this work

University of Central Florida
The American Ceramic Society
Advanced Materials Processing and Analysis Center

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

81 Citations (Scopus)

Abstract

Nanocrystalline γ-alumina powders of 50-nm size were milled by high-energy ball milling. It was found that the pure γ-alumina phase showed great stability and did not transform to any other phase even after a long milling time. On the other hand, γ-alumina, which contained a small amount of the α7-alumina phase, showed a gradual phase transformation from γ- to α-alumina on milling. The phase transformation mechanism during milling appears to be nucleation and growth type and promoted by the α-alumina seed.

Original language	English
Pages (from-to)	780-783
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	88
Issue number	3
DOIs	https://doi.org/10.1111/j.1551-2916.2005.00105.x
Publication status	Published - 2005
Externally published	Yes

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title = "Phase transformation in nanometer-sized γ-alumina by mechanical milling",

abstract = "Nanocrystalline γ-alumina powders of 50-nm size were milled by high-energy ball milling. It was found that the pure γ-alumina phase showed great stability and did not transform to any other phase even after a long milling time. On the other hand, γ-alumina, which contained a small amount of the α7-alumina phase, showed a gradual phase transformation from γ- to α-alumina on milling. The phase transformation mechanism during milling appears to be nucleation and growth type and promoted by the α-alumina seed.",

author = "Yiguang Wang and C. Suryanarayana and Linan An",

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AU - Wang, Yiguang

AU - Suryanarayana, C.

AU - An, Linan

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N2 - Nanocrystalline γ-alumina powders of 50-nm size were milled by high-energy ball milling. It was found that the pure γ-alumina phase showed great stability and did not transform to any other phase even after a long milling time. On the other hand, γ-alumina, which contained a small amount of the α7-alumina phase, showed a gradual phase transformation from γ- to α-alumina on milling. The phase transformation mechanism during milling appears to be nucleation and growth type and promoted by the α-alumina seed.

AB - Nanocrystalline γ-alumina powders of 50-nm size were milled by high-energy ball milling. It was found that the pure γ-alumina phase showed great stability and did not transform to any other phase even after a long milling time. On the other hand, γ-alumina, which contained a small amount of the α7-alumina phase, showed a gradual phase transformation from γ- to α-alumina on milling. The phase transformation mechanism during milling appears to be nucleation and growth type and promoted by the α-alumina seed.

UR - https://www.scopus.com/pages/publications/27644470372

U2 - 10.1111/j.1551-2916.2005.00105.x

DO - 10.1111/j.1551-2916.2005.00105.x

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ER -

Phase transformation in nanometer-sized γ-alumina by mechanical milling

Abstract

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