Title

Phase Transformation Of Mechanically Milled Nano-Sized Γ-Alumina

Abstract

The phase transformation of mechanically milled nano-sized γ-alumina particles was investigated. The structures and phase presentation of the powders before and after milling were characterized using X-ray diffraction, transmission electron microscopy, and photoluminescence measurement. The phase transformation kinetics was investigated using differential scanning calorimetry. It was found that significant amounts of defects were generated by milling. These defects dramatically lowered the temperatures and activation energies of the transformation by promoting the nucleation and diffusion. The accumulation of the defects appears to show a logarithmic dependence of milling time. © 2005 The American Ceramic Society.

Publication Date

9-1-2005

Publication Title

Journal of the American Ceramic Society

Volume

88

Issue

9

Number of Pages

2559-2563

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/j.1551-2916.2005.00457.x

Socpus ID

27644555710 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/27644555710

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