Synthesis and characterization of HA-YSZ

Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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NICEC14_561

تاریخ نمایه سازی: 3 آذر 1391

Abstract:

HA-Y2O3-ZrO2, a nano-composite as a biomaterial, was successfully synthesized via Sol-gel method. . The study of the crystal structure through the X-ray Diffraction (XRD) confirmed the formation of tetragonal zirconia (t-ZrO2) and hydroxyapatite (HA). The study of the chemical state by the X-ray photo-emission spectroscopy (XPS) and the Fourier transform infrared spectroscopy (FT-IR) confirmed the HA-Zirconium bond in the ternary composite system.The study of the biomaterial thermal behaviour by simultaneous thermal analysis (STA) verified that the presence of the HA beside the Zirconium , reduces the tetragonal formation temperature from 1100°C to be 400°C. Transmission Electron Microscopy (TEM) of the sample represented the average particle size as around 20 nm for t-ZrO2 and 50 nm for HA; moreover, it illustrated the fine dispersion of the t zrO2in the HA matrix

Authors

Sahar Salehi

Department of material engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

Ghadir Rajabzadeh

Nanotechnology Department, Research Institute of Food Science and Technology, Mashhad, Iran

Ali Nemati

Department of material engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

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