Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment

Phase formation of NiTi via solid state diffusion from Ni–Ti and Ni–TiH2 powders under a CaH2 reducing environment were investigated. Elemental powder sintering of Ni–Ti at equiatomic composition did not result in single phase TiNi, but rather in multi-phases, including Ti2Ni, TiNi, and TiNi3. In...

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Main Authors:	Mohd Zaki, Hafizah Hanim, Abdullah, Jamaluddin
Format:	Article
Language:	English English
Published:	Elsevier 2014
Subjects:	TA164 Bioengineering
Online Access:	http://irep.iium.edu.my/62556/ http://irep.iium.edu.my/62556/ http://irep.iium.edu.my/62556/ http://irep.iium.edu.my/62556/1/Materials%20letters.pdf http://irep.iium.edu.my/62556/7/62556%20Comparison%20studies%20on%20solid%20state%20diffusion%20SCOPUS.pdf

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recordtype	eprints
spelling	iium-625562018-03-28T03:51:50Z http://irep.iium.edu.my/62556/ Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment Mohd Zaki, Hafizah Hanim Abdullah, Jamaluddin TA164 Bioengineering Phase formation of NiTi via solid state diffusion from Ni–Ti and Ni–TiH2 powders under a CaH2 reducing environment were investigated. Elemental powder sintering of Ni–Ti at equiatomic composition did not result in single phase TiNi, but rather in multi-phases, including Ti2Ni, TiNi, and TiNi3. In this work, we show evidence that powder sintering of Ni–TiH2 produces single phase NiTi with good transformation heat both on cooling and heating with ΔHA–M=26.04 J/g and ΔHM–A=25.53 J/g, respectively. The use of CaH2 as the in situ reducing agent and of TiH2 to replace Ti as the starting powder, protected the sample successfully from oxidation. Elsevier 2014-04-15 Article PeerReviewed application/pdf en http://irep.iium.edu.my/62556/1/Materials%20letters.pdf application/pdf en http://irep.iium.edu.my/62556/7/62556%20Comparison%20studies%20on%20solid%20state%20diffusion%20SCOPUS.pdf Mohd Zaki, Hafizah Hanim and Abdullah, Jamaluddin (2014) Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment. Materials Letters, 121. pp. 36-39. ISSN 0167-577X https://www.sciencedirect.com/science/article/pii/S0167577X14001311 10.1016/j.matlet.2014.01.115
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TA164 Bioengineering
spellingShingle	TA164 Bioengineering Mohd Zaki, Hafizah Hanim Abdullah, Jamaluddin Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment
description	Phase formation of NiTi via solid state diffusion from Ni–Ti and Ni–TiH2 powders under a CaH2 reducing environment were investigated. Elemental powder sintering of Ni–Ti at equiatomic composition did not result in single phase TiNi, but rather in multi-phases, including Ti2Ni, TiNi, and TiNi3. In this work, we show evidence that powder sintering of Ni–TiH2 produces single phase NiTi with good transformation heat both on cooling and heating with ΔHA–M=26.04 J/g and ΔHM–A=25.53 J/g, respectively. The use of CaH2 as the in situ reducing agent and of TiH2 to replace Ti as the starting powder, protected the sample successfully from oxidation.
format	Article
author	Mohd Zaki, Hafizah Hanim Abdullah, Jamaluddin
author_facet	Mohd Zaki, Hafizah Hanim Abdullah, Jamaluddin
author_sort	Mohd Zaki, Hafizah Hanim
title	Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment
title_short	Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment
title_full	Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment
title_fullStr	Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment
title_full_unstemmed	Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment
title_sort	comparison studies on solid state diffusion of ni–ti and ni–tih2 under cah2 reducing environment
publisher	Elsevier
publishDate	2014
url	http://irep.iium.edu.my/62556/ http://irep.iium.edu.my/62556/ http://irep.iium.edu.my/62556/ http://irep.iium.edu.my/62556/1/Materials%20letters.pdf http://irep.iium.edu.my/62556/7/62556%20Comparison%20studies%20on%20solid%20state%20diffusion%20SCOPUS.pdf
first_indexed	2023-09-18T21:28:39Z
last_indexed	2023-09-18T21:28:39Z
_version_	1777412361908387840

Comparison studies on solid state diffusion of Ni–Ti and Ni–TiH2 under CaH2 reducing environment

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