Synthesis of Amorphous/Nanocrystalline Ni-Ti Biomaterial Powders by Mechanical Alloying
An amorphous/nanocrystalline 5ONi-5OTi powder was produced from elemental Ti and Ni powders by solid state synthesis utilizing low energy mechanical alloying with times up to 100 hr. The morphology,microstructure and phase composition of the milling products were evaluated by u-sing scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis. The results indicated that there was no chemical reaction between the elements during the milling process, which led to the direct for mation of an amorphous/nanocrystalline structure without any intermediate phase (intermetallic and/or solid solution phase) formation. It seems that the second kind of amorphization process proposed by Weeber and Bakker is governed. It was shown that the formation of amorphous phase was started after 80hr and developed during the milling for 100hr.
Mechanical alloying amorphization intermetallics
M. Salehi M. M. Verdian K. Raeissi
Department of Materials Engineering,Isfahan University of Technology,Isfahan,P. O. Box-. 84156-83111,Iran
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1704-1708
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）