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烧结助剂引入方式对BNT陶瓷性能的影响
Effect of Different Doping Method of Sintering Additive on Properties of BNT Ceramics
【摘要】 分别以sol-gel法和固相合成法引入BCC(BaCuO2+CuO2)烧结助剂制备BaO-Nd2O3-TiO2(BNT)陶瓷采用DTA-TGA、SEM、网络分析仪等对陶瓷微观结构、性能等进行分析。结果表明:用sol-gel法引入BCC的样品经1 100℃烧结后气孔率为1.6%、εr为85.03、Q.f(测试频率2 GHz)为3576GHz,优于固相合成法1150℃烧结样品的性能。
【Abstract】 BaO-Nd2O3-TiO2(BNT) ceramics were prepared with different additives of BCC(BaCuO2+CuO2) by sol-gel method and solid phase sintering method.Micostructure and properties of ceramis were analyzed by means of DTA-TG,SEM and network analyzer.The results show that BNT microwave ceramic added sol BCC can be sintered at 1 100℃,50℃ lower than by solid phase sintering method.Properties of samples sentered at 1 100℃ are: εr=85.03,Q.f(at 2 GHz)=3 576 GHz and porosity is 1.6%.
【关键词】 无机非金属材料;
sol-gel法;
BNT;
低温烧结;
BCC;
【Key words】 inorganic non-metallic materials; sol-gel; BNT; low temperature sintering; BCC;
【Key words】 inorganic non-metallic materials; sol-gel; BNT; low temperature sintering; BCC;
【基金】 国家自然科学基金资助项目(60103005)
- 【文献出处】 电子元件与材料 ,Electronic Components and Materials , 编辑部邮箱 ,2006年03期
- 【分类号】TQ174
- 【被引频次】1
- 【下载频次】213