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Effect of Sintering Temperature in Physical-Mechanical Behaviour and in Titanium-Hydroxyapatite Composite Sinterability

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Abstract:

Mechanical alloying (MA) has been successfully used to produce alloys and composites with a high homogeneity degree. In current research, titanium (Ti) powder was mixed with 40, 50% volume of hydroxyapatite (HAp). MA was performed without atmosphere control, at room temperature, for 4.5 hours of milling time, at rotation speed of 300 rpm. Samples of material were compacted in cylindrical form at 350 MPa and sintered in 2.0 flux air (l/min) at 1000, 1100 and 1200oC during 1 hr. The material’s morphological and microstructural characterization, in powder form and in sintered material, was performed by scanning electronic microscope and X-ray diffractometry. Thermal treatments revealed that sintering temperature affects the microstructure, microhardness and the composition of the composites evaluated by EDS.

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Periodical:

Materials Science Forum (Volumes 530-531)

Pages:

249-254

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.530-531.249

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Online since:

November 2006

Authors:

W.R. Weinand, F.F.R. Gonçalves, W.M. Lima

Keywords:

Biomaterial, Composite, Physical and Mechanical Properties, Sinterability

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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