王金相,彭楚才,卢孚嘉,赵铮.锆丝电爆炸法制备氧化锆纳米颗粒及其特征[J].稀有金属材料与工程,2019,48(7):2118~2121.[Jinxiang Wang,Chucai Peng,Fujia Lu,Zheng Zhao.Synthesis and characteristics of zirconium dioxide nanoparticles by electrical explosion of zirconium wire[J].Rare Metal Materials and Engineering,2019,48(7):2118~2121.]
锆丝电爆炸法制备氧化锆纳米颗粒及其特征
投稿时间:2018-01-30  修订日期:2018-03-09
中文关键词:  氧化锆纳米颗粒  电爆炸  能量沉积  电击穿
基金项目:国家自然科学基金 (Nos. 11272158, 11672138) ,江苏省自然科学基金 (No.BK20151353).
中文摘要:
      在空气中采用锆丝点爆炸法合成了纳米二氧化锆颗粒,根据实测电流、电压和由此计算得到的能量沉积波形分析了电爆炸和纳米颗粒形成过程。发现锆丝气化后在锆丝蒸汽和空气中形成电击穿现象诱发电爆炸并截断锆丝中的能量沉积。通过扫描电镜和透射电镜对产物进行了分析,发现纳米二氧化锆颗粒形貌呈近球形,粒度分布在30.6-69.4纳米之间。X射线衍射分析表明产物由单斜晶型(m- ZrO2)和四方晶型(t- ZrO2)二氧化锆组成,随着充电电压的提高,四方晶型二氧化锆含量增加而单斜晶型含量变小,二者粒度都呈变大趋势。
Synthesis and characteristics of zirconium dioxide nanoparticles by electrical explosion of zirconium wire
英文关键词:Zirconium dioxide nanoparticles  electrical explosion  energy deposition  electrical breakdown
英文摘要:
      Zirconium dioxide (ZrO2) nanoparticles were synthesized by electrical explosion of zirconium wire in the air. The process of wire explosion and particles formation were analyzed according to the measured current, voltage and calculated deposited energy waveforms. It was found that electrical breakdown through the vapor of Zirconium wire and the surrounding air resulted in an explosion and stopped the energy deposition in wire. By scanning electron microscopy (SEM) and transmission electron microscope (TEM) of the products, it was found that the morphologies of synthesized nanoparticles were nearly spherical and the diameters range from 30.6 to 69.4 nanometers. The x-ray diffraction (XRD) analysis show that the powders consist of monoclinic ZrO2 (m- ZrO2) and tetragonal ZrO2 (t- ZrO2), the content of t-ZrO2 increases while the content of m-ZrO2 decreases with the increased charging voltage, the average sizes of the m-ZrO2 and t-ZrO2 are both increase when the charging voltage increases.
作者单位E-mail
王金相 南京理工大学瞬态物理重点实验室 wjx@njust.edu.cn 
彭楚才 南京理工大学瞬态物理重点实验室  
卢孚嘉 南京理工大学瞬态物理重点实验室  
赵铮 南京理工大学能源与动力工程学院  
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