Tuan, Wei-HsingWei-HsingTuanPai, Yu-PanYu-PanPai2008-12-312018-06-282008-12-312018-06-28199900027820http://ntur.lib.ntu.edu.tw//handle/246246/95432https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032624547&doi=10.1111%2fj.1151-2916.1999.tb01974.x&partnerID=40&md5=d2671ffd53a469ecb6400991f4f606bbThe mechanical properties of the Al2O3-NiAl system are investigated in the present study. Specimens containing 0 to 100 vol% NiAl in Al2O3 were prepared by hot pressing. Both the strength and toughness of the Al2O3-NiAl composites are higher than the values predicted by the rule of mixtures. The grain growth of Al2O3 and NiAl in the composites is constrained by each component. The increase in strength is thus partly attributed to microstructural refinement. The toughness enhancement is contributed by a combination of crack deflection and crack bridging.application/pdf295485 bytesapplication/pdfen-USAlumina; Crack initiation; Crystal microstructure; Grain growth; Hot pressing; Mechanical properties; Mixtures; Nickel alloys; Strength of materials; Toughness; Crack bridging; Crack deflection; Microstructural refinement; Nickel aluminides; Ceramic matrix compositesjournal article10.1111/j.1151-2916.1999.tb01974.x2-s2.0-0032624547http://ntur.lib.ntu.edu.tw/bitstream/246246/95432/1/27.pdf