Superelastic porous niti with adjustable porosities synthesized by powder metallurgical method

Xiangmei Liu; Shuilin Wu; K. W K Yeung; Z. S. Xu; C. Y. Chung; Paul K. Chu

doi:10.1007/s11665-012-0333-x

Superelastic porous niti with adjustable porosities synthesized by powder metallurgical method

Xiangmei Liu, Shuilin Wu, K. W K Yeung, Z. S. Xu, C. Y. Chung, Paul K. Chu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

7 Citations (Scopus)

Abstract

The effects of cold compaction pressure, TiH₂, and NH ₄HCO₃ on the physical and mechanical properties of porous NiTi fabricated by capsule-free-hot isostatic pressing (CF-HIP) were investigated. The porosities vary from 20 to 48% depending on the pressure. Porous NiTi with as great as 42% porosity and irregular pores can be prepared by the addition of TiH₂, whereas 48% porosity and circular pores can be achieved by NH4HCO3 addition. All the porous NiTi fabricated by CF-HIP using these three methods exhibit superelastic behavior that closely matches human bones. © ASM International.

Original language	English
Pages (from-to)	2553-2558
Journal	Journal of Materials Engineering and Performance
Volume	21
Issue number	12
DOIs	https://doi.org/10.1007/s11665-012-0333-x
Publication status	Published - Dec 2012

Research Keywords

Implants
Porous niti
Powder metallurgy
Superelastic

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title = "Superelastic porous niti with adjustable porosities synthesized by powder metallurgical method",

abstract = "The effects of cold compaction pressure, TiH2, and NH 4HCO3 on the physical and mechanical properties of porous NiTi fabricated by capsule-free-hot isostatic pressing (CF-HIP) were investigated. The porosities vary from 20 to 48% depending on the pressure. Porous NiTi with as great as 42% porosity and irregular pores can be prepared by the addition of TiH2, whereas 48% porosity and circular pores can be achieved by NH4HCO3 addition. All the porous NiTi fabricated by CF-HIP using these three methods exhibit superelastic behavior that closely matches human bones. {\textcopyright} ASM International.",

keywords = "Implants, Porous niti, Powder metallurgy, Superelastic",

author = "Xiangmei Liu and Shuilin Wu and Yeung, {K. W K} and Xu, {Z. S.} and Chung, {C. Y.} and Chu, {Paul K.}",

year = "2012",

month = dec,

doi = "10.1007/s11665-012-0333-x",

language = "English",

volume = "21",

pages = "2553--2558",

journal = "Journal of Materials Engineering and Performance",

issn = "1059-9495",

publisher = "Springer New York",

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TY - JOUR

T1 - Superelastic porous niti with adjustable porosities synthesized by powder metallurgical method

AU - Liu, Xiangmei

AU - Wu, Shuilin

AU - Yeung, K. W K

AU - Xu, Z. S.

AU - Chung, C. Y.

AU - Chu, Paul K.

PY - 2012/12

Y1 - 2012/12

N2 - The effects of cold compaction pressure, TiH2, and NH 4HCO3 on the physical and mechanical properties of porous NiTi fabricated by capsule-free-hot isostatic pressing (CF-HIP) were investigated. The porosities vary from 20 to 48% depending on the pressure. Porous NiTi with as great as 42% porosity and irregular pores can be prepared by the addition of TiH2, whereas 48% porosity and circular pores can be achieved by NH4HCO3 addition. All the porous NiTi fabricated by CF-HIP using these three methods exhibit superelastic behavior that closely matches human bones. © ASM International.

AB - The effects of cold compaction pressure, TiH2, and NH 4HCO3 on the physical and mechanical properties of porous NiTi fabricated by capsule-free-hot isostatic pressing (CF-HIP) were investigated. The porosities vary from 20 to 48% depending on the pressure. Porous NiTi with as great as 42% porosity and irregular pores can be prepared by the addition of TiH2, whereas 48% porosity and circular pores can be achieved by NH4HCO3 addition. All the porous NiTi fabricated by CF-HIP using these three methods exhibit superelastic behavior that closely matches human bones. © ASM International.

KW - Implants

KW - Porous niti

KW - Powder metallurgy

KW - Superelastic

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84869875724&origin=recordpage

U2 - 10.1007/s11665-012-0333-x

DO - 10.1007/s11665-012-0333-x

M3 - RGC 21 - Publication in refereed journal

SN - 1059-9495

VL - 21

SP - 2553

EP - 2558

JO - Journal of Materials Engineering and Performance

JF - Journal of Materials Engineering and Performance

IS - 12

ER -

Superelastic porous niti with adjustable porosities synthesized by powder metallurgical method

Abstract

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