文献类型：期刊文章

作　　者：孟凡君[1] 茹淼焱[1] 刘爱祥[1] 刘宗林[1] 王新强[2] 秦连杰[2]

机构地区：[1]山东大学化学与化工学院,济南250100 [2]山东大学晶体材料研究所,济南250100

出　　处：《无机化学学报》

年　　份：2002

卷　　号：18

期　　号：10

起止页码：1067-1070

语　　种：中文

收录情况：BDHX、BDHX2000、CAS、CSCD、CSCD2011_2012、IC、JST、RCCSE、RSC、SCI-EXPANDED(收录号：WOS:000178186600021)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：The microwave-absorbing behavior o f substituted M-type barium ferrite nano-particles was investigated.T he nano-particles were synthesized wi th coprecipitation-melted salt method.For the purpose of comparison,c orre-sponding micro-particles were also prepared through direct coprecipitation and sintering.XRD and TEM of th e nano-particles showed that the ferr ite was hexagonal in structure and wi dely distributed in size with partic le size being less than 100nm,the complex permittivity and permeability of a 1.50mm thick specimen and a 1.40mm thick specimen containing 60%by weight of substituted M-type barium ferrite n ano-particles and micro-particles were measured respectively in X band(8.2～12.4GHz )range,from which the reflection loss(R.L.)of microwaves was calculated and two comparative abso rption curves were given.The results showed that the synthetic nano-particles could well absorb microwaves in X ban d.The absorption was larger than 10dB in the range of 9.2～12.4GHz while the maximum absorption was 38.6dB at10.6GHz.

关 键 词：替代M-型钢铁氧体  纳米粒子  微波吸收性能 共沉淀-熔盐法  吸波材料

分 类 号：TB34[材料类] TM277]