纳米复合W-6%ThO2和W-2%ThO2阴极材料的性能对比

稀有金属材料与工程, 2003, 32(2): 141-143.

纳米复合W-6%ThO2和W-2%ThO2阴极材料的性能对比

诸葛飞 ^1, , 王发展 ^2, , 张晖 ^3, , 丁秉钧 ^4,

1.浙江大学,浙江,杭州,310027

2.西安交通大学,陕西,西安,710049

3.西安交通大学,陕西,西安,710049

4.西安交通大学,陕西,西安,710049

基金项目: 国家自然科学基金(50071043)

关键词： W-6％ThO2阴极材料 , 纳米复合

Comparison of Nano-composite W-6 % ThO2 and W-2 % ThO2 Cathode

通过真空热压烧结制备了W-6%ThO2和W-2%ThO2纳米复合阴极材料,分析表明两者的显微组织类似,纳米ThO2较均匀分布在W基体上;前者的起弧电场强度低于后者,逸出功也相应降低;两者的机械性能相差不大.

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