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Medium-dielectric-constant dielectric ceramic for filter and preparation method of medium-dielectric-constant dielectric ceramic
The invention provides medium-dielectric-constant dielectric ceramic for a filter and a preparation method of the medium-dielectric-constant dielectric ceramic. The medium-dielectric-constant dielectric ceramic for the filter is prepared by mixing ZrTi2O6 series microwave dielectric ceramic and ZnNb2O6 series microwave dielectric ceramic, and the high quality factor of the ceramic is realized by doping a manganese source. The formula of the chemical composition of the dielectric ceramic is as follows: (0.6+x)ZrTi2O6+(0.4-x)ZnNb2O6+yMn, wherein the molar ratio of the ZrTi2O6 powder material tothe ZnNb2O6 powder material is (0.6+x):(0.4-x), x is in a range of 0.05 to 0.1, and y is in a range of 0.5 to 0.8 wt%. According to the microwave dielectric ceramic provided by the invention, a manganese source is doped on the basis of ZrTi2O6 system and ZnNb2O6 system compounding, and the manganese source is compounded with ZrTi2O6-ZnNb2O6 system matrix ceramic, so that the microwave dielectric ceramic can be used as a receptor to receive superfluous electrons on the surface, the electrical property of the ceramic is improved, and the sintering temperature is effectively reduced; and the microwave dielectric properties are as follows: [epsilon]r is equal to 43.10-44.52, Q*f is equal to 42000-45000GHz, and [tau]f is equal to 9.8-5ppm/DEG C.
本发明提供了一种中介电常数的滤波器用介质陶瓷及其制备方法，采用ZrTi2O6系及ZnNb2O6系微波介质陶瓷两相混合制备，具有中介电常数的滤波器用介质陶瓷，并通过掺杂锰源实现陶瓷的高品质因数。其化学组成的表达式为：(0.6+x)ZrTi2O6+(0.4‑x)ZnNb2O6+yMn；所述ZrTi2O6与ZnNb2O6粉体材料摩尔比为0.6+x：0.4‑x；x为0.05～0.1，y为0.5～0.8wt％。本发明提供的微波介质陶瓷在ZrTi2O6系与ZnNb2O6系复合的基础上掺杂锰源，锰源与ZrTi2O6‑ZnNb2O6体系基体陶瓷复合，能够充当受体接收表面多余电子，改善陶瓷的电学性能，有效的降低烧结温度；微波介电性能：εr＝43.10～44.52，Q×f＝42000～45000GHz和τf＝‑9.8～5ppm/℃。
Medium-dielectric-constant dielectric ceramic for filter and preparation method of medium-dielectric-constant dielectric ceramic
The invention provides medium-dielectric-constant dielectric ceramic for a filter and a preparation method of the medium-dielectric-constant dielectric ceramic. The medium-dielectric-constant dielectric ceramic for the filter is prepared by mixing ZrTi2O6 series microwave dielectric ceramic and ZnNb2O6 series microwave dielectric ceramic, and the high quality factor of the ceramic is realized by doping a manganese source. The formula of the chemical composition of the dielectric ceramic is as follows: (0.6+x)ZrTi2O6+(0.4-x)ZnNb2O6+yMn, wherein the molar ratio of the ZrTi2O6 powder material tothe ZnNb2O6 powder material is (0.6+x):(0.4-x), x is in a range of 0.05 to 0.1, and y is in a range of 0.5 to 0.8 wt%. According to the microwave dielectric ceramic provided by the invention, a manganese source is doped on the basis of ZrTi2O6 system and ZnNb2O6 system compounding, and the manganese source is compounded with ZrTi2O6-ZnNb2O6 system matrix ceramic, so that the microwave dielectric ceramic can be used as a receptor to receive superfluous electrons on the surface, the electrical property of the ceramic is improved, and the sintering temperature is effectively reduced; and the microwave dielectric properties are as follows: [epsilon]r is equal to 43.10-44.52, Q*f is equal to 42000-45000GHz, and [tau]f is equal to 9.8-5ppm/DEG C.
本发明提供了一种中介电常数的滤波器用介质陶瓷及其制备方法，采用ZrTi2O6系及ZnNb2O6系微波介质陶瓷两相混合制备，具有中介电常数的滤波器用介质陶瓷，并通过掺杂锰源实现陶瓷的高品质因数。其化学组成的表达式为：(0.6+x)ZrTi2O6+(0.4‑x)ZnNb2O6+yMn；所述ZrTi2O6与ZnNb2O6粉体材料摩尔比为0.6+x：0.4‑x；x为0.05～0.1，y为0.5～0.8wt％。本发明提供的微波介质陶瓷在ZrTi2O6系与ZnNb2O6系复合的基础上掺杂锰源，锰源与ZrTi2O6‑ZnNb2O6体系基体陶瓷复合，能够充当受体接收表面多余电子，改善陶瓷的电学性能，有效的降低烧结温度；微波介电性能：εr＝43.10～44.52，Q×f＝42000～45000GHz和τf＝‑9.8～5ppm/℃。
Medium-dielectric-constant dielectric ceramic for filter and preparation method of medium-dielectric-constant dielectric ceramic
一种中介电常数的滤波器用介质陶瓷及其制备方法
LI CHUNHONG (author) / TAN XIONG (author) / KANG XIAOLI (author) / CUI XUDONG (author)
2020-12-04
Patent
Electronic Resource
Chinese
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