Characterization of Hydroxyapatite/TI6AL4V composite powder under various sintering temperature

Amir Arifin, Abu Bakar Sulong, Norhamidi Muhamad, Junaidi Syarif

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Hydroxyapatite (HA) has been widely used in biomedical applications due to its excellent biocompatibility. However, Hydroxyapatite possesses poor mechanical properties and only tolerate limited loads for implants. Titanium is well-known materials applied in implant that has advantage in mechanical properties but poor in biocompatibility. The combination of the Titanium alloy and HA is expected to produce bio-implants with good in term of mechanical properties and biocompatabilty. In this work, interaction and mechanical properties of HA/Ti6Al4V was analyzed. The physical and mechanical properties of HA/Ti6Al4V composite powder obtained from compaction (powder metallurgy) of 60 wt.% Ti6Al4V and 40 wt.% HA and sintering at different temperatures in air were investigated in this study. Interactions of the mixed powders were investigated using X-ray diffraction. The hardness and density of the HA/Ti6Al4V composites were also measured. Based on the results of XRD analysis, the oxidation of Ti began at 700 °C. At 1000 °C, two phases were formed (i.e., TiO<inf>2</inf> and CaTiO<inf>3</inf>). The results showed that the hardness HA/Ti6Al4V composites increased by 221.6% with increasing sintering temperature from 700°C to 1000°C. In contrast, the density of the composites decreased by 1.9% with increasing sintering temperature.

Original languageEnglish
Pages (from-to)27-31
Number of pages5
JournalJurnal Teknologi
Volume75
Issue number7
DOIs
Publication statusPublished - 24 Aug 2015

Fingerprint

Hydroxyapatite
Sintering
Powders
Composite materials
Mechanical properties
Temperature
Biocompatibility
Hardness
Powder metallurgy
Titanium alloys
Loads (forces)
Compaction
Physical properties
Titanium
X ray diffraction
Oxidation
Air

Keywords

  • Density
  • Hardness
  • Hydroxyapatite
  • Sintering temperature
  • Ti6Al4V

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Characterization of Hydroxyapatite/TI6AL4V composite powder under various sintering temperature. / Arifin, Amir; Sulong, Abu Bakar; Muhamad, Norhamidi; Syarif, Junaidi.

In: Jurnal Teknologi, Vol. 75, No. 7, 24.08.2015, p. 27-31.

Research output: Contribution to journalArticle

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