低温快速碳化制备纳米WC粉体及表征  

Synthesis and Characterization of Nano-WC Powders by Fast Carbonization at Low Temperature

作　　者：宋志华[1] 郭亨群[1] 吴冲浒 吴其山 

机构地区：[1]华侨大学信息科学与工程学院,泉州362021 [2]厦门金鹭特种合金有限公司,厦门361006

出　　处：《机械工程材料》2010年第9期87-89,共3页Materials For Mechanical Engineering

基　　金：国家科技支撑计划课题资助项目(2007BAE05B01)

摘　　要：采用工业化生产技术,以纳米钨粉和炭黑为原料,在1 050℃低温条件下快速碳化15 min制备了纳米WC粉体,通过XRD、EDS、SEM和FESEM等方法分析了纳米WC粉体的物相、成分、形貌和粒径。结果表明:制备的纳米WC粉体的纯度较高,仅含有少量的W_2C和游离碳等杂质;粉体颗粒均匀,呈球形、板状及多角形,平均粒径为68.9 nm。Nano-WC powders were prepared through fast carbonization for 15 min at 1 050℃using nanotungsten powders and carbon black as raw materials by industrial production technology.The phase,composition, morphology and particle size of nano-WC powders were analyzed by means of XRD,EDS,SEM and FESEM.The results show that the purity of the nano-WC powders was very high.The powders had a small amount of W_2C and free carbon.The particles uniformly distributed,which were spherical,plate and polygonal.And the average particle size was 68.9 nm.

关 键 词：纳米碳化钨 粉体 粒径 低温快速碳化 

分 类 号：TB383[一般工业技术—材料科学与工程] TF123.72[冶金工程—粉末冶金]