Preparation and characterization of the nanocrystalline Ti_0.5Cr_0.5O_xN_y powder

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• 作者：Li ; Yaogang ; Gao ; Lian
• 关键词：Chromium oxide ; Titanium oxide ; Ammonolysis ; Nanocrystalline ; Oxynitride
• 刊名：Materials Letters
• 出版年：2003
• 出版时间：January, 2003
• 年：2003
• 卷：57
• 期：5-6
• 页码：1062-1065
• 全文大小：128 K

文摘

Nanocrystalline bimetallic metal oxynitride, Ti_0.5Cr_0.5O_xN_y, was synthesized by ammonolysis of the nanosized Cr₂O₃/TiO₂ composite powder at 800 °C for 8 h. The precursor and the resulting oxynitride were characterized by Auger electron spectroscope (AES), X-ray diffraction analysis (XRD), electron probe microanalysis (EP), transmission electron microscopy (TEM), and BET surface area techniques. The result indicated that the as-synthesized oxynitride powder contains only Ti_0.5Cr_0.5O_xN_y with cubic structure and the average particle size is about 30 nm.