Title of article :
Thermal nitridation synthesis of MN (M=Ti, V and Cr) nanocrystals from metals and NH4Cl
Author/Authors :
Yang، نويسنده , , Xiaogang and Li، نويسنده , , Cun and Yang، نويسنده , , Baojun and Wang، نويسنده , , Wei and Qian، نويسنده , , Yitai، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
Nanocrystalline TiN, VN and CrN have been synthesized by a thermal nitridation reaction between the corresponding metal powder and NH4Cl at 600 °C in an autoclave. X-ray powders diffraction (XRD) indicated that these nanocystallites had a NaCl-type structure with lattice parameters: a=4.236 إ for TiN, 4.133 إ for VN, 4.145 إ for CrN. Transmission electron microscopy (TEM) showed these products consisted of cubic nanocrystals. X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA) techniques revealed that all the products were almost pure nitrides.
Keywords :
A. Nitrides , C. X-ray diffraction , B. Chemical synthesis
Journal title :
Materials Research Bulletin
Journal title :
Materials Research Bulletin
