The Effects of YSZ-Al₂O₃ Addition on Hydroxyapatite Fabricted by Powder Metallurgy

Abstract:

Yttria-stabilized zirconia (YSZ) becomes popular alternative to alumina (Al₂O₃) especially for hard tissue applications. Both zirconia and alumina own their good biocompatibility due to chemical inertness in body environment. Considering the bioactive of hydroxyapatite (HAP) will allow interfacial bond formation, it is desirable to combine the advantages of both materials, YSZ and Al₂O₃ with HAP. Various amounts (30, 40, 50, 60 wt. % of YSZ-Al₂O₃)/10HAP of composites have been prepared by powder metallurgy method. Several tests have been conducted to determine the effect YSZ addition on physical, mechanical properties and the microstructure of composites. The results showed that density and compressive strength increased with increasing wt. % of YSZ. Microstructural characterization has been observed by scanning electron microscope (SEM) showed the presence of pores reduced slightly in increasing of wt. % of YSZ. The prepared YSZ-Al₂O₃/10HAP composite is expected as a potential candidate for biomedical application.

• Periodical: Advanced Materials Research (Volume 970)
• Pages: 12-15
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.970.12
• Online since: June 2014
• Authors: Mohd Rosli Nur Liyana*, Nur Maizatul Shima Adzali, Mohd Zain Mohamad Zamzuri, K.A. Ismail, Mat Akhir Khalid Azadi
• Keywords: Alumina, Hydroxyapatite (HA), Powder metallurgy, Yttria Stabilized Zirconia (YSZ)

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