Fabrication and properties of porous NiTi shape memory alloys for heavy load-bearing medical applications

C. L. Chu; C. Y. Chung; P. H. Lin; S. D. Wang

doi:10.1016/j.jmatprotec.2005.03.002

Author(s)

C. L. Chu
C. Y. Chung
P. H. Lin
S. D. Wang

Detail(s)

Original language	English
Pages (from-to)	103-107
Journal / Publication	Journal of Materials Processing Technology
Volume	169
Issue number	1
Publication status	Published - 30 Oct 2005

Link(s)

DOI	DOI https://doi.org/10.1016/j.jmatprotec.2005.03.002 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-26044476174&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(d7af8347-e4c5-42a4-bd33-d2d652984381).html

Abstract

Porous NiTi shape memory alloys (SMA) with isotropic three-dimensionally interconnected pore structure, higher strength and less undesired Ti ₂Ni phases were fabricated using the improved self-propagating high-temperature synthesis (SHS) technique by means of providing the higher heat flux density for SHS reactions using the improved ignition technique and adopting the powder compacts with a larger volume-surface area ratio to reduce heat losses. The combustion temperature agrees well with the melting point of compound NiTi (1583 K) under the two preheating temperatures (623 and 673 K). The porous NiTi SMAs fabricated by such SHS technique have the higher compressive strength than that of the compact human bone and the similar Young's modulus to that of natural bones, which is anticipated for the ideal biomaterials used as the heavy load-bearing hard tissue implants. Moreover, the transformation temperatures of the porous NiTi SMAs could be easily adjusted to the suitable values for medical applications by heat treatment. © 2005 Elsevier B.V. All rights reserved.

Research Area(s)

Mechanical properties, Phase transformations, Porous material, Self-propagating high-temperature synthesis (SHS), Shape memory alloys (SMA)

Citation Format(s)

[ RIS ] [ BibTeX ]

Fabrication and properties of porous NiTi shape memory alloys for heavy load-bearing medical applications. / Chu, C. L.; Chung, C. Y.; Lin, P. H. et al.

In: Journal of Materials Processing Technology, Vol. 169, No. 1, 30.10.2005, p. 103-107.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Chu, CL, Chung, CY, Lin, PH & Wang, SD 2005, 'Fabrication and properties of porous NiTi shape memory alloys for heavy load-bearing medical applications', Journal of Materials Processing Technology, vol. 169, no. 1, pp. 103-107. https://doi.org/10.1016/j.jmatprotec.2005.03.002

Chu, C. L., Chung, C. Y., Lin, P. H., & Wang, S. D. (2005). Fabrication and properties of porous NiTi shape memory alloys for heavy load-bearing medical applications. Journal of Materials Processing Technology, 169(1), 103-107. https://doi.org/10.1016/j.jmatprotec.2005.03.002

Chu CL, Chung CY, Lin PH, Wang SD. Fabrication and properties of porous NiTi shape memory alloys for heavy load-bearing medical applications. Journal of Materials Processing Technology. 2005 Oct 30;169(1):103-107. doi: 10.1016/j.jmatprotec.2005.03.002

Chu, C. L. ; Chung, C. Y. ; Lin, P. H. et al. / Fabrication and properties of porous NiTi shape memory alloys for heavy load-bearing medical applications. In: Journal of Materials Processing Technology. 2005 ; Vol. 169, No. 1. pp. 103-107.