Minimum amount of nano-sized nickel particles to enhance the strength of alumina
Resource
Journal of the European Ceramic Society 27 (16): 4705-4709
Journal
Journal of the European Ceramic Society
Journal Volume
27
Journal Issue
16
Pages
4705-4709
Date Issued
2007
Date
2007
Author(s)
Abstract
Previous studies demonstrated that the strength of alumina could be enhanced by incorporating >5 vol.% nano-sized nickel particles. In the present study, the possibility of using a much smaller amount, <0.5 vol.%, of nano-sized Ni particles to improve the mechanical properties of Al2O3 is explored. As the Ni content is low, the densification of Al2O3 is affected little and the Ni inclusions remain small after pressureless sintering at 1600 °C. The presence of Ni inclusions can refine the matrix grains; the strength of Al2O3 matrix is consequently enhanced. © 2007 Elsevier Ltd. All rights reserved.
Subjects
B. Nanocomposites; C. Strength; D. Al2O3; Grain size
Other Subjects
Alumina; Densification; Grain size and shape; Inclusions; Nanocomposites; Nickel; Sintering; Strength of materials; Nano-sized particles; Pressureless sintering; Metal oxide ceramics; Alumina; Densification; Grain size and shape; Inclusions; Metal oxide ceramics; Nanocomposites; Nickel; Sintering; Strength of materials
Type
journal article
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