Nano Archive

Preparation of SiC/BN nanocomposite powders by chemical processing

Wang, Xiangdong and Qiao, Guanjun and Jin, Zhihao (2004) Preparation of SiC/BN nanocomposite powders by chemical processing. Materials Letters, 58 (9). 1419 - 1423.

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The silicon carbide (SiC)/BN nanocomposite powders that had the microstructure of micro-sized SiC particles coated with nano-sized BN particles were fabricated via a chemical reaction of boric acid and urea on the surface of SiC particles in a nitrogen gas. The results of X-ray diffraction analysis (XRD), transmission electron microscope (TEM), and selected area electron diffraction (SAED) showed that the coating layer was composed mainly of amorphous and nano-sized BN particles at the reaction temperature of 850 °C. After reheating the composite powders at 1750 °C in a nitrogen gas, the amorphous BN was transformed into h-BN.

Item Type:Article
Uncontrolled Keywords:Silicon carbide; Boron nitride; Nanocomposite powder; Preparation; Microstructure
Subjects:Material Science > Nanofabrication processes and tools
Material Science > Nanochemistry
Material Science > Nanostructured materials
ID Code:6887
Deposited By:SPI
Deposited On:24 Sep 2009 16:48
Last Modified:24 Sep 2009 16:48

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