高能球磨法制备NiFe_2O_4基惰性阳极  

Effect of Ball Mill in Preparation of NiFe_2O_4 Ceramic Inert Anodes

作　　者：罗伟红[1] 宋宁[1] 谢刚[1,2] 姚云[1] 田林[2] 

机构地区：[1]昆明理工大学冶金与能源学院,云南昆明650093 [2]云南冶金集团总公司技术中心,云南昆明650031

出　　处：《金属功能材料》2012年第6期7-11,共5页Metallic Functional Materials

基　　金：云南云铝涌鑫铝业资助项目

摘　　要：本文以NiO和Fe2O3为主要原料,采用机械化合-两步烧结法制备NiFe2O4基金属陶瓷试样。研究了球磨时间、助磨剂含量、球磨转速对制备前驱体粒度的影响,并利用X射线衍射和扫描电子显微镜等进行表征。结果表明,球磨参数越好,粉体颗粒越细,提高冷等静压压坯的致密度、降低试样烧结温度,最终提高惰性阳极试样密度,改善试样的导电性和抗腐蚀性等性能并达到保护环境、节约能源的效果。本实验制备惰性阳极球磨阶段最佳球磨条件为:助磨剂含量150ml、球磨时间6h、球磨转速300r/min,此条件下制得了体积密度为5.68g/ml的阳极试样。The NiFe2O4 spinel-based inert anode are preparated using NiO and Fe2O4 as raw materials via machinery combination and two step sintering. The effect of the milling time, grinding aids content, ball mill speed on the par- ticle size are investigated. The structure of samples are characterized by X-ray diffraction , scanning electron micros- copy. The results show that the better the ball mill parameters, the more fine the powder particles, it can improve the density of the cold isostatic pressing, reduce the sintering temperature, improve the inert anode sample density, enhancing the electric conductivity and corrosion resistance, achieve the effect of environmental protection and ener- gy saving. The best ball mill conditions： grinding aids content of 150 ml, milling time of 6 h, ball mill speed of 300 r/min, The anode specimens with volume density of 5.68 g/ml are made in this way.

关 键 词：NIFE2O4 惰性阳极 制备 高温固相合成法 

分 类 号：O614.813[理学—无机化学]