柠檬酸盐法制备超细Zn(Al)O的微波介电性能研究  

Research on Dielectric Property of Fine Zn(Al)O by Citrate Gel Method

作　　者：曾国勋[1] 张海燕[1] 胡礼初[1] 王力[1] 陈易明[1] 

机构地区：[1]广东工业大学材料与能源学院,广州510640

出　　处：《人工晶体学报》2006年第4期816-819,共4页Journal of Synthetic Crystals

基　　金：国家自然科学基金(No.20271014;No.50372013);"十五"国家科技攻关计划(No.2003BA310A24);广东省十五重大专项(No2001A10702;No.2003A1070301);广东省科技计划项目(No.2004B10301008);广州市科技计划项目(No.024G1070);广东省自然科学基金(No.036918)资助

摘　　要：本文研究了利用柠檬酸盐法制备的Zn（Al）O的介电性能。XRD分析显示先驱体燃烧后制成了单相的Zn（Al）O。热重分析显示先驱体易发生不完全燃烧，产生炭黑残留。燃烧产物经600℃，90min加热除去炭黑。2～18GHZ的介电谱测量结果显示含炭黑的Zn（Al）O的复介电常数无论实部还是虚部均高于不含炭黑Zn（Al）O；介电谱还显示Zn（Al）O分别在X、Ku波段存在两个损耗峰。其中X波段的损耗峰位易受炭黑的影响，发生移动；Ku波段的损耗峰较稳定。文章理论计算Zn（Al）O微波吸收率。显示出Zn（Al）O对微波具有良好的透波作用。因此，当Zn（Al）O做红外反射材料时，不影响底层材料对微波的吸收。Zn（Al）O are good infrared camouflage materials. In this paper, Zn（Al） O was prepared by citrate gel method. The XRD result indicates that the single phase of Zn （Al）O could be manufactured by this method, but it is not pure - containing black carbon, and these carbon disappear by holding at 600℃ in 90min. The complex permittivities show that the values of Zn（Al） O containing black carbon are higher than pure Zn （Al） O in the band of 2-18GHz. Both of Zn （Al） O and Zn （Al） O with black carbon have two peaks of imaginary parts at X and Ku band. The peak at X band is easily affected by black carbon, but the peak at Ku band doesn＇t. The microwave reflection loss of Zn（Al） O has been simulated by Transmission Line Modeling. The results indicate Zn （Al）O don＇t ＂,affect the microwave absorption of the next coating when they are used to be infrared camouflage surface coating.

关 键 词：Zn(Al)O 微波 介电性能 

分 类 号：O782[理学—晶体学]