Synthesis of Al2O3-TiC Nano-Composite Particles by a Novel Electro-Plasma Process
Document Type
Article
Publication Date
10-5-2011
Abstract
The formation of nano-sized alumina-titanium carbide (Al2O3-TiC) composite powders from aluminum, graphite and nano-sized anatase titania powder compact were directly synthesized by electro-plasma process (EPP) and the following combustion reaction. The theoretical density of compact played an important role for the ignition of the combustion reaction. For the compact with higher than 80% of theoretical density, the combustion reaction occurred and the nano-composites of Al2O3-TiC were formed in-situ. Because of the occurrence of combustion reaction in the electrolyte liquid, the resultant particles experienced rapid quenching and resulted in ultrafine microstructures (50-100nm). X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the products after the processing by electro-plasma. The mechanism of formation of nano-sized alumina and titanium carbide was also discussed.
Publication Source (Journal or Book title)
Processing and Properties of Advanced Ceramics and Composites III
First Page
51
Last Page
59
Recommended Citation
Wang, K., Zhang, P., Liang, J., & Guo, S. (2011). Synthesis of Al2O3-TiC Nano-Composite Particles by a Novel Electro-Plasma Process. Processing and Properties of Advanced Ceramics and Composites III, 225, 51-59. https://doi.org/10.1002/9781118144442.ch5