Apatite-Forming Ability Governing Bone-Bonding of Ti-15Zr-4Nb-4Ta Alloy Subjected to Calcium Solution Treatment

Abstract:

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Ti-15Zr-4Nb-4Ta alloy is an attractive metal for orthopaedic implants, since it is free from cytotoxic elements and shows high mechanical strength. It was recently shown by an animal experiment [1] that this alloy tightly bonds to living bone, when it was subjected to 5 M NaOH solution and 100 mM CaCl2 solution treatments, heat treatment at 600 or 700 °C, and final water treatment at 80 °C. The bonding strength was increased markedly when the heat treatment temperature was increased from 600 to 700 °C. This increase of the bonding strength was attributed to the increase in apatite-forming ability of the treated alloy in a simulated body fluid (SBF) [2] with ion concentrations nearly equal to human blood plasma, although its reason was not revealed yet.

Info:

Periodical:

Key Engineering Materials (Volumes 493-494)

Main Theme:

Edited by:

Eyup Sabri Kayali, Gultekin Goller and Ipek Akin

Pages:

920-925

DOI:

10.4028/www.scientific.net/KEM.493-494.920

Citation:

S. Yamaguchi et al., "Apatite-Forming Ability Governing Bone-Bonding of Ti-15Zr-4Nb-4Ta Alloy Subjected to Calcium Solution Treatment", Key Engineering Materials, Vols. 493-494, pp. 920-925, 2012

Online since:

October 2011

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Price:

$35.00

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