陶瓷介质滤波器表面斑点分析及解决措施

doi:10.3969/j.issn.1001-1935.2023.05.012

耐火材料 ›› 2023, Vol. 57 ›› Issue (5): 431-433.DOI: 10.3969/j.issn.1001-1935.2023.05.012

陶瓷介质滤波器表面斑点分析及解决措施

周会俊, 罗天, 王龙光, 牛世程, 王建坤, 禄向阳

中钢集团洛阳耐火材料研究院有限公司先进耐火材料国家重点实验室河南洛阳 471039

收稿日期:2023-06-26 出版日期:2023-10-15 发布日期:2023-10-26
作者简介:周会俊:男,1983年生,硕士,高级工程师。E-mail:89783606@qq.com

Analysis and countermeasures of surface spots on ceramic dielectric filters

Zhou Huijun, Luo Tian, Wang Longguang, Niu Shicheng, Wang Jiankun, Lu Xiangyang

First author's address: State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd.,Luoyang 471039,Henan,China

Received:2023-06-26 Online:2023-10-15 Published:2023-10-26

摘要/Abstract

摘要： 为提高陶瓷介质滤波器的烧成良品率,采用扫描电子显微镜(SEM)和能谱分析仪(EDS)对MgTiO₃-CaTiO₃(MCT)陶瓷介质滤波器置于刚玉-莫来石承烧板上烧成后出现的表面斑点进行了剖析。结果表明,在 1 300 ℃,MCT陶瓷介质滤波器与刚玉-莫来石承烧板接触点发生反应,生成2MgO·SiO₂和Al₂O₃·TiO₂,形成异色斑点。基于对复合氧化物反应的热力学分析,在刚玉-莫来石承烧板工作面喷涂ZrO₂涂层,烧制的滤波器表面颜色均匀,无异色斑点产生。

关键词: 陶瓷介质滤波器, MgTiO₃-CaTiO₃, 刚玉-莫来石承烧板, 异色斑点

Abstract: To improve the firing yield of ceramic dielectric filters,the surface spots of MgTiO₃-CaTiO₃ (MCT) ceramic dielectric filters fired on corundum-mullite load bearing boards were analyzed by a scanning electron microscope (SEM) and an energy dispersive spectrometer (EDS).The results show that at 1 300 ℃,the filters react with the boards at their contact areas to generate 2MgO·SiO₂ and Al₂O₃·TiO₂,forming discoloration spots.Based on the thermodynamic analysis of the composite oxide reaction,after spraying ZrO₂ coatings on the working surface of the corundum-mullite load bearing boards,the fired filters are of uniform color without discoloration spots.

Key words: ceramic dielectric filters, MgTiO₃-CaTiO₃, corundum-mullite load bearing boards, discoloration spots

中图分类号:

TQ174.75

周会俊, 罗天, 王龙光, 牛世程, 王建坤, 禄向阳. 陶瓷介质滤波器表面斑点分析及解决措施[J]. 耐火材料, 2023, 57(5): 431-433.

Zhou Huijun, Luo Tian, Wang Longguang, Niu Shicheng, Wang Jiankun, Lu Xiangyang. Analysis and countermeasures of surface spots on ceramic dielectric filters[J]. Refractories, 2023, 57(5): 431-433.

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陶瓷介质滤波器表面斑点分析及解决措施

Analysis and countermeasures of surface spots on ceramic dielectric filters

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