An Electro-Assisted Powder Metallurgical Route for the Preparation of Porous Ti and NiTi in Molten CaCl 2
作者： Xue Ma , Hongwei Xie , Jiakang Qu , Qiushi Song , Zhiqiang Ning
DOI: 10.1007/S11663-019-01522-2
关键词: Electrochemistry 、 Sintering 、 Oxide 、 Polarization (electrochemistry) 、 Electrolyte 、 Nickel titanium 、 Metallurgy 、 Cathode 、 Porosity 、 Materials science
摘要: Molten salts can provide a high-temperature and oxygen-water-free environment, the electrochemical polarization is able to reduce oxide scale on surface of Ti Ni particles in molten and, thereby, enhance sintering accelerating atom diffusion between Ni. Thus, an electro-assisted powder metallurgical (EPM) approach was developed prepare porous NiTi from metal powders salts, where pellet cathode made mixture electrochemically polarized facilitate generation at temperature lower than 1000 °C. The electrolytic product obtained under cell voltage 3 V for 12 hours nearly pure with tiny amount undesired Ni3Ti NiTi2 phases. Overall, EPM route could be straightforward general way Ti-alloys implants other applications.
springer.com
harvard.edu
sci-hub.se 参考文章(45)
George Zheng Chen, Derek J. Fray, Tom W. Farthing, Direct electrochemical reduction of titanium dioxide to titanium in molten calcium chloride Nature. ,vol. 407, pp. 361- 364 ,(2000) , 10.1038/35030069
Titanium and titanium alloys : fundamentals and applications Titanium and Titanium Alloys: Fundamentals and Applications. pp. 532- ,(2005) , 10.1002/3527602119
Cristina Balagna, Alessandro Fais, Katya Brunelli, Luca Peruzzo, Miroslava Horynová, Ladislav Čelko, Silvia Spriano, Electro-sinter-forged Ni-Ti alloy Intermetallics. ,vol. 68, pp. 31- 41 ,(2016) , 10.1016/J.INTERMET.2015.08.016
Antoine Allanore, Lan Yin, Donald R. Sadoway, A new anode material for oxygen evolution in molten oxide electrolysis Nature. ,vol. 497, pp. 353- 356 ,(2013) , 10.1038/NATURE12134
H Inoue, M Ishio, T Takasugi, Texture of TiNi shape memory alloy sheets produced by roll-bonding and solid phase reaction from elementary metals Acta Materialia. ,vol. 51, pp. 6373- 6383 ,(2003) , 10.1016/J.ACTAMAT.2003.08.009
Ben Jackson, Martin Jackson, David Dye, Douglas Inman, Richard Dashwood, Production of NiTi via the FFC Cambridge process Journal of The Electrochemical Society. ,vol. 155, pp. 2990- 2990 ,(2008) , 10.1149/1.2987739
Tao Wang, Haiping Gao, Xianbo Jin, Hualin Chen, Junjun Peng, George Z. Chen, Electrolysis of solid metal sulfide to metal and sulfur in molten NaCl–KCl Electrochemistry Communications. ,vol. 13, pp. 1492- 1495 ,(2011) , 10.1016/J.ELECOM.2011.10.005
X.Y. Yan, D.J. Fray, Synthesis of niobium aluminides by electro-deoxidation of oxides Journal of Alloys and Compounds. ,vol. 486, pp. 154- 161 ,(2009) , 10.1016/J.JALLCOM.2009.06.176
Hualin Chen, Yi Zeng, Wei Li, Junjun Peng, Xianbo Jin, George Z. Chen, A PRS model for accurate prediction of the optimal solid oxide cathode structure for the preparation of metals in molten chlorides Electrochemistry Communications. ,vol. 26, pp. 33- 36 ,(2013) , 10.1016/J.ELECOM.2012.10.005
Xingli Zou, Xionggang Lu, Zhongfu Zhou, Chonghe Li, Direct electrosynthesis of Ti5Si3/TiC composites from their oxides/C precursors in molten calcium chloride Electrochemistry Communications. ,vol. 21, pp. 9- 13 ,(2012) , 10.1016/J.ELECOM.2012.05.008