Morphological Study of Apatite Formation on NaOH- and Heat-Treated Titanium Metal

Abstract:

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Surface structural change of titanium metal with NaOH and heat treatments and the subsequent soaking in a simulated body fluid (SBF) was investigated by observing cross section of its surface layer by scanning electron microscope. A layer of lathlike phase of sodium hydrogen titanate was formed on the surface of the titanium metal 1 µm in thickness by the NaOH treatment. This was transformed into a layer of lathlike form a little densified of sodium titanate and rutile by the subsequent heat treatment. In SBF, apatite started to precipitate in the interior of the surface lathlike layer, filled the interspaces of the lathlike phases and grew over the surface. This integration of the apatite with the surface lathlike layer might be responsible for the strong bonding of the titanium metal to the living bone.

Info:

Periodical:

Key Engineering Materials (Volumes 396-398)

Main Theme:

Edited by:

Marcelo Prado and Cecília Zavaglia

Pages:

361-364

DOI:

10.4028/www.scientific.net/KEM.396-398.361

Citation:

S. Yamaguchi et al., "Morphological Study of Apatite Formation on NaOH- and Heat-Treated Titanium Metal ", Key Engineering Materials, Vols. 396-398, pp. 361-364, 2009

Online since:

October 2008

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Price:

$35.00

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