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分别通过接触式和气体放电式丝电爆法制备纳米粉,观察电极烧损情况并统计粉末中微米级大颗粒的比例。结果表明,气体放电式丝电爆过程电极烧损比较轻微,制备的粉末中微米级大颗粒比例较小,并且更有利于工程上连续实施。提高初始电压也可以减小粉末中微米级大颗粒的比例。
Abstract：Nanopowders were prepared with wire electrical explosion(WEE) of "contact" and "gas discharge",respectively.The burning loss of electrodes was observed and the micro-size particle percentage was calculated.The results show that,during the process of WEE of "gas discharge",the ablation of electrodes is slight,the proportion of micro-size particles in nanopowders is smaller,and the WEE of "gas discharge" is more applicable for engineering.Furthermore,increasing the initial charging voltage could reduce the proportion of micron-size particles.
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基本信息:
中图分类号:TF123.14
引用信息:
[1]毕学松,朱亮.丝电爆制备纳米粉中的电极烧损和大颗粒形成[J].有色金属(冶炼部分),2012(08):48-50+57.
基金信息:
国家自然科学基金资助项目(51061011)
2012-08-12
2012-08-12