标题：Investigation of porous NiAl intermetallics prepared by self-propagating high-temperature synthesis
作者：Wu, Jie; Cui, Hongzhi; Zeng, Liangliang
作者机构：[Wu, Jie; Cui, Hongzhi; Zeng, Liangliang] Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Peoples R China.
会议名称：3rd International Conference on Advances in Materials Manufacturing (ICAMMP 2012)
会议日期：DEC 22-23, 2012
来源：ADVANCES IN MATERIALS AND MATERIALS PROCESSING, PTS 1-3
关键词：Porous NiAl; Self-propagating high-temperature synthesis; Reaction; process; Oxidation
摘要：Porous NiAl intermetallics with different porosities were successfully prepared by self-propagating high-temperature synthesis (SHS). Examination of the reaction process between Ni and Al as well as the oxidation properties of the resultant materials was carried out. The melting of Al is the precondition for the reaction between Ni and Al, the reaction process can be explained by dissolution-precipitation mechanism. Only minor weight gain (0.06%similar to 0.24%) and stable pore structures of porous materials after 200 hours oxidation at 650 C indicate that porous NiAl intermetallics have excellent oxidation resistance.