论文信息 - Production of TiB2–TiN Composites by Combustion Synthesis and Their Properties

Production of TiB2–TiN Composites by Combustion Synthesis and Their Properties

The self-propagating high-temperature synthesis (SHS) process has been applied to formation of composites consisting of TiB{sub 2} and TiN ceramics synthesized simultaneously. Ti, B, and BN powders were used as raw materials. the SHS reaction was initiated by a tungsten heating coil. XRD experiments confirmed that the reaction was complete, and that only TiB{sub 2} and TiN phases were detected. Microstructural observations revealed that both TiN and TiB{sub 2} crystal grains had small sizes of less than 1 {micro}m in the composites with high TiN content. Inhibition of grain growth can be attributed to the pinning effect of TiN grains. Excellent corrosion resistance was obtained for HCl reagent.

T. Matsushita | A. Murayama | R. Tomoshige

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