Synthesis of nanocrystalline intermetallic compounds in Ni-Ti-Al system by mechanothermal method

被引：4
|
作者：
Gashti, S. O. [1 ]
Shokuhfar, A. [1 ]
Ebrahimi-Kahrizsangi, R. [2 ]
Nasiri-Tabrizi, B. [1 ,2 ]
机构：
[1] KN Toosi Univ Technol, Dept Mech Engn, Fac Mech Engn, Adv Mat & Nanotechnol Res Ctr, Tehran, Iran
[2] Islamic Azad Univ, Dept Mat Engn, Najafabad Branch, Tehran, Iran
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 491卷 / 1-2期
关键词：
Mechanothermal; Nanocrystalline; Ni-Ti-Al; Structural properties; SHAPE-MEMORY ALLOYS; HYDROXYAPATITE; PARAMETERS; EVOLUTION; ENERGY; FILMS;
D O I：
10.1016/j.jallcom.2009.10.169
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A nanostructured Ni-Ti-Al system was produced through mechanothermal process. In this paper, the structural and morphological evaluation of mechanically alloyed powders has been highlighted. The result exhibited that, the aluminum dissolved into NiTi structure after mechanical alloying and the low crystalline NiTi(1 1 0) phase was obtained. The milled powders transformed into nanocrystalline NiTiAl and Ni(3)(Ti,Al) phases after annealing at 1150 degrees C for 15 min. According to XRD patterns, SEM micrographs and TEM results, the mechanothermal process can be used for preparation of nanostructured Ni-Ti-Al system which, otherwise, cannot be made through conventional methods with appropriate structural and morphological features. (c) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：344 / 348
页数：5
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