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Silicate-based microwave dielectric ceramic as well as preparation method and application thereof
The invention discloses silicate-based microwave dielectric ceramic and a preparation method and application thereof.The chemical expression of the silicate-based microwave dielectric ceramic is Mg2SiO4-xwt.% SrTiO3, and the preparation method of the silicate-based microwave dielectric ceramic comprises the steps that Mg2SiO4 powder and SrTiO3 powder are mixed according to the design proportion to obtain ceramic mixed powder, then a binder and a lubricant are added into the ceramic mixed powder, ball milling is conducted, and then the ceramic mixed powder is obtained; the preparation method comprises the following steps: grinding the raw materials to obtain a ball-milled material, carrying out compression molding on granules obtained by granulating the ball-milled material to obtain a green body, and sintering the green body to obtain the silicate-based microwave dielectric ceramic at the temperature of 1150-1300 DEG C. The silicate-based microwave dielectric ceramic provided by the invention has the advantages of large relative density, good temperature stability, high thermal expansion coefficient, low dielectric constant and dielectric loss.
本发明公开了一种硅酸盐基微波介质陶瓷及其制备方法和应用，所述硅酸盐基微波介质陶瓷的化学表达式为Mg2SiO4‑xwt.％SrTiO3，其制备方法为：按设计比例配取Mg2SiO4与SrTiO3粉末混合获得陶瓷混合粉，然后在陶瓷混合粉中加入粘结剂、润滑剂，再进行球磨，获得球磨料，将球磨料造粒所得粒料进行压制成型获得生坯，生坯经烧结即得硅酸盐基微波介质陶瓷，所述烧结的温度为1150℃～1300℃。本发明所提供的硅酸盐基微波介质陶瓷相对密度大、温度稳定性较好，具有高热膨胀系数、低介电常数与介电损耗。
Silicate-based microwave dielectric ceramic as well as preparation method and application thereof
The invention discloses silicate-based microwave dielectric ceramic and a preparation method and application thereof.The chemical expression of the silicate-based microwave dielectric ceramic is Mg2SiO4-xwt.% SrTiO3, and the preparation method of the silicate-based microwave dielectric ceramic comprises the steps that Mg2SiO4 powder and SrTiO3 powder are mixed according to the design proportion to obtain ceramic mixed powder, then a binder and a lubricant are added into the ceramic mixed powder, ball milling is conducted, and then the ceramic mixed powder is obtained; the preparation method comprises the following steps: grinding the raw materials to obtain a ball-milled material, carrying out compression molding on granules obtained by granulating the ball-milled material to obtain a green body, and sintering the green body to obtain the silicate-based microwave dielectric ceramic at the temperature of 1150-1300 DEG C. The silicate-based microwave dielectric ceramic provided by the invention has the advantages of large relative density, good temperature stability, high thermal expansion coefficient, low dielectric constant and dielectric loss.
本发明公开了一种硅酸盐基微波介质陶瓷及其制备方法和应用，所述硅酸盐基微波介质陶瓷的化学表达式为Mg2SiO4‑xwt.％SrTiO3，其制备方法为：按设计比例配取Mg2SiO4与SrTiO3粉末混合获得陶瓷混合粉，然后在陶瓷混合粉中加入粘结剂、润滑剂，再进行球磨，获得球磨料，将球磨料造粒所得粒料进行压制成型获得生坯，生坯经烧结即得硅酸盐基微波介质陶瓷，所述烧结的温度为1150℃～1300℃。本发明所提供的硅酸盐基微波介质陶瓷相对密度大、温度稳定性较好，具有高热膨胀系数、低介电常数与介电损耗。
Silicate-based microwave dielectric ceramic as well as preparation method and application thereof
一种硅酸盐基微波介质陶瓷及其制备方法和应用
LIU SHAOJUN (Autor:in) / LIU FAN (Autor:in)
04.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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