Tuan, Wei-HsingWei-HsingTuanChen, Jiang-RungJiang-RungChenYang, Tsong-JenTsong-JenYang2008-12-312018-06-282008-12-312018-06-28200709552219http://ntur.lib.ntu.edu.tw//handle/246246/95461https://www.scopus.com/inward/record.uri?eid=2-s2.0-34748857385&doi=10.1016%2fj.jeurceramsoc.2007.03.033&partnerID=40&md5=2ff0d7847ab16d81bd3deaec1ac27f53Previous 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.application/pdf811498 bytesapplication/pdfen-USB. Nanocomposites; C. Strength; D. Al2O3; Grain sizeAlumina; 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 materialsjournal article10.1016/j.jeurceramsoc.2007.03.0332-s2.0-34748857385http://ntur.lib.ntu.edu.tw/bitstream/246246/95461/1/56.pdf