Effects of carbon source and synthesized temperature on the morphology and phase composition of nano-sized ZrC powders prepared by carbothermal reduction method
ZENG Guang, YANG Xin, SU Zhean, CHEN Lei, FANG Cunqian, HUANG Qizhong
State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Abstract：ZrC nano-crystals and 2D-nanosheet ZrC were synthesized by carbothermal reduction method using glucose and graphene as carbon source and zirconium acetate as zirconium source. The effects of carbon source and the synthesized temperature on morphology and phase composition of ZrC were investigated. The results show that using glucose as carbon source, ZrC is formed initially at 1 400 ℃ and completely transformed to ZrC nano-crystals at 1 600 ℃ with the sizes in the range of 140-200 nm. Using graphene as carbon source, ZrC 2D-nanosheet is synthesized at 1 600 ℃ with the thickness of 240 nm. Graphene not only offers carbon source, but also serves as a template for the precipitation of ZrO2 and growing of ZrC 2D-nanosheet in the carbothermal reduction.
曾广, 杨鑫, 苏哲安, 陈蕾, 方存谦, 黄启忠. 碳源及反应温度对碳热还原法制备纳米ZrC形貌与物相的影响[J]. 粉末冶金材料科学与工程, 2018, 23(1): 17-24.
ZENG Guang, YANG Xin, SU Zhean, CHEN Lei, FANG Cunqian, HUANG Qizhong. Effects of carbon source and synthesized temperature on the morphology and phase composition of nano-sized ZrC powders prepared by carbothermal reduction method. Materials Science and Engineering of Powder Metallurgy, 2018, 23(1): 17-24.
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2018, Vol. 23 
