caa a22 4500 388019239 CHVBK 20180307124919.0 cr unu---uuuuu 161130e199810 xx s 000 0 eng 10.1557/JMR.1998.0389 doi S0884291400046240 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0389 Porous NiTi alloy prepared from elemental powder sintering [Elektronische Daten] An elemental powder sintering (EPS) technique has been developed for the synthesis of porous NiTi alloy, in which Ni and Ti powders are used as the reactants and TiH2 powder is added as a pore-forming agent and active agent. Effects of various experimental parameters (sintering temperature, sintering time, and TiH2 content) on the porosity, pore size, and pore distribution as well as phase composition in experimental alloys are investigated. It is found that in order to avoid the formation of carcinogenic pure Ni phase, the porous NiTi alloy should be synthesized over a temperature of 1223 K. This gives NiTi as the main phase without any elemental phase. Substitution of Ti by TiH2 is more economic and more favorable to obtain homogeneous porous NiTi alloy. A proper selection of initial powders, ball-milling, pressing, and sintering process makes it possible to achieve the porous NiTi alloy with desired properties. Copyright © Materials Research Society 1998 Li Bing-Yun Laboratory of Atomic Imaging of Solids, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China Rong Li-Jian Laboratory of Atomic Imaging of Solids, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China Li Yi-Yi Laboratory of Atomic Imaging of Solids, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China Journal of Materials Research Cambridge University Press 13/10(1998-10), 2847-2851 0884-2914 13:10<2847 1998 13 JMR https://doi.org/10.1557/JMR.1998.0389 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0389 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Bing-Yun Laboratory of Atomic Imaging of Solids, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China NATIONALLICENCE 700 1- Rong Li-Jian Laboratory of Atomic Imaging of Solids, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China NATIONALLICENCE 700 1- Li Yi-Yi Laboratory of Atomic Imaging of Solids, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/10(1998-10), 2847-2851 0884-2914 13:10<2847 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge