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Negative temperature coefficient ceramic dielectric material and preparation method thereof
The invention provides a negative temperature coefficient ceramic dielectric material and a preparation method thereof, belongs to the technical field of ceramic dielectric materials, and solves the problem that the capacitance temperature coefficient of the existing ceramic dielectric material can be both positive and negative within the range of 55-150 DEG C and is constantly changed. Accordingto the technical scheme, the ceramic dielectric material is composed of (Zn0. 5W0. 5) O2-3 (Mg0. 5W0. 5) O2 -(Fe0. 67W0. 33) O2 and PbO, the ceramic dielectric material is obtained through a step-by-step burdening and heating method, and the obtained dielectric material has the advantages of being high in dielectric constant, low in dielectric loss and negative in temperature coefficient; the Pb ([Zn, Mg] 0.5 W0.5) O3 material has a perovskite structure and has no Curie peak within the range of -55-150 DEG C, and the Pb (Fe0. 67W0. 33) O3 can enable Zn < 2 + > and Mg < 2 + > to be stably dissolved in solid, so that the Pb ([Zn, Mg] 0.5 W0.5) O3 material has a negative capacitance temperature coefficient within the range of 55-150 DEG C.
本发明提供一种负温度系数陶瓷介质材料及其制备方法，属陶瓷介质材料技术领域，解决目前陶瓷介质材料的电容温度系数在‑55℃～150℃范围内有正有负，不断变化的问题；技术方案为：陶瓷介质材料由(Zn0.5W0.5)O2‑3(Mg0.5W0.5)O2‑(Fe0.67W0.33)O2和PbO组成，通过分步配料和升温的方法得到，得到的介质材料具备介电常数高、介电损耗低、负温度系数的特征；Pb([Zn,Mg]0.5W0.5)O3材料具有钙钛矿结构，它在‑55℃～150℃范围内没有居里峰，Pb(Fe0.67W0.33)O3能够使Zn2+和Mg2+稳定固溶，使其在‑55℃～150℃范围内具有负电容温度系数。
Negative temperature coefficient ceramic dielectric material and preparation method thereof
The invention provides a negative temperature coefficient ceramic dielectric material and a preparation method thereof, belongs to the technical field of ceramic dielectric materials, and solves the problem that the capacitance temperature coefficient of the existing ceramic dielectric material can be both positive and negative within the range of 55-150 DEG C and is constantly changed. Accordingto the technical scheme, the ceramic dielectric material is composed of (Zn0. 5W0. 5) O2-3 (Mg0. 5W0. 5) O2 -(Fe0. 67W0. 33) O2 and PbO, the ceramic dielectric material is obtained through a step-by-step burdening and heating method, and the obtained dielectric material has the advantages of being high in dielectric constant, low in dielectric loss and negative in temperature coefficient; the Pb ([Zn, Mg] 0.5 W0.5) O3 material has a perovskite structure and has no Curie peak within the range of -55-150 DEG C, and the Pb (Fe0. 67W0. 33) O3 can enable Zn < 2 + > and Mg < 2 + > to be stably dissolved in solid, so that the Pb ([Zn, Mg] 0.5 W0.5) O3 material has a negative capacitance temperature coefficient within the range of 55-150 DEG C.
本发明提供一种负温度系数陶瓷介质材料及其制备方法，属陶瓷介质材料技术领域，解决目前陶瓷介质材料的电容温度系数在‑55℃～150℃范围内有正有负，不断变化的问题；技术方案为：陶瓷介质材料由(Zn0.5W0.5)O2‑3(Mg0.5W0.5)O2‑(Fe0.67W0.33)O2和PbO组成，通过分步配料和升温的方法得到，得到的介质材料具备介电常数高、介电损耗低、负温度系数的特征；Pb([Zn,Mg]0.5W0.5)O3材料具有钙钛矿结构，它在‑55℃～150℃范围内没有居里峰，Pb(Fe0.67W0.33)O3能够使Zn2+和Mg2+稳定固溶，使其在‑55℃～150℃范围内具有负电容温度系数。
Negative temperature coefficient ceramic dielectric material and preparation method thereof
一种负温度系数陶瓷介质材料及其制备方法
ZHANG YONGGANG (author) / WANG YUE (author)
2020-11-10
Patent
Electronic Resource
Chinese
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