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Microwave dielectric ceramic and preparation method thereof
The invention discloses a microwave dielectric ceramic and a preparation method thereof. The microwave dielectric ceramic is RO doped magnesium-calcium-titanium system ceramic, and the chemical composition expression of the microwave dielectric ceramic is aMgTiO3-bCaTiO3-RO. The magnesium-calcium-titanium system ceramic is a main material, the chemical expression of the magnesium-calcium-titanium system ceramic is aMgTiO3-bCaTiO3, a and b respectively represent molar ratios, a is more than or equal to 0.90 and less than or equal to 0.99, b is more than or equal to 0.01 and less than or equal to 0.1, and a + b is equal to 1; the RO is a sintering aid, and comprises at least one of MnO2, Fe2O3, ZnO, SiO2, Nb2O5, Cr2O3, La2O3, NiO, ZrO2 and Nd2O3. According to the microwave dielectric ceramic, the RO doped magnesium-calcium-titanium system ceramic serving as the sintering aid is used for forming the microwave dielectric ceramic, and the microwave dielectric ceramic has the advantages of excellent microwave dielectric property, high quality factor, moderate dielectric constant, better temperature stability, excellent mechanical property, wide application prospect, simple preparation process, convenience in operation and good repeatability.
本发明公开了一种微波介质陶瓷及其制备方法，所述微波介质陶瓷为RO掺杂镁钙钛体系陶瓷，其化学组成表达式为aMgTiO3‑bCaTiO3‑RO；其中，所述镁钙钛体系陶瓷为主料，其化学表达式为aMgTiO3‑bCaTiO3，a、b分别代表摩尔比，0.90≤a≤0.99，0.01≤b≤0.1，a+b＝1；所述RO为烧结助剂，包括MnO2、Fe2O3、ZnO、SiO2、Nb2O5、Cr2O3、La2O3、NiO、ZrO2及Nd2O3中至少一种。本发明的微波介质陶瓷，以作为烧结助剂的RO掺杂镁钙钛体系陶瓷形成微波介质陶瓷，具有优异的微波介电性能，品质因数高，介电常数适中，具备较好的温度稳定性且力学性能优异，具有广泛的应用前景，且制备工艺简单，操作方便重复性好。
Microwave dielectric ceramic and preparation method thereof
The invention discloses a microwave dielectric ceramic and a preparation method thereof. The microwave dielectric ceramic is RO doped magnesium-calcium-titanium system ceramic, and the chemical composition expression of the microwave dielectric ceramic is aMgTiO3-bCaTiO3-RO. The magnesium-calcium-titanium system ceramic is a main material, the chemical expression of the magnesium-calcium-titanium system ceramic is aMgTiO3-bCaTiO3, a and b respectively represent molar ratios, a is more than or equal to 0.90 and less than or equal to 0.99, b is more than or equal to 0.01 and less than or equal to 0.1, and a + b is equal to 1; the RO is a sintering aid, and comprises at least one of MnO2, Fe2O3, ZnO, SiO2, Nb2O5, Cr2O3, La2O3, NiO, ZrO2 and Nd2O3. According to the microwave dielectric ceramic, the RO doped magnesium-calcium-titanium system ceramic serving as the sintering aid is used for forming the microwave dielectric ceramic, and the microwave dielectric ceramic has the advantages of excellent microwave dielectric property, high quality factor, moderate dielectric constant, better temperature stability, excellent mechanical property, wide application prospect, simple preparation process, convenience in operation and good repeatability.
本发明公开了一种微波介质陶瓷及其制备方法，所述微波介质陶瓷为RO掺杂镁钙钛体系陶瓷，其化学组成表达式为aMgTiO3‑bCaTiO3‑RO；其中，所述镁钙钛体系陶瓷为主料，其化学表达式为aMgTiO3‑bCaTiO3，a、b分别代表摩尔比，0.90≤a≤0.99，0.01≤b≤0.1，a+b＝1；所述RO为烧结助剂，包括MnO2、Fe2O3、ZnO、SiO2、Nb2O5、Cr2O3、La2O3、NiO、ZrO2及Nd2O3中至少一种。本发明的微波介质陶瓷，以作为烧结助剂的RO掺杂镁钙钛体系陶瓷形成微波介质陶瓷，具有优异的微波介电性能，品质因数高，介电常数适中，具备较好的温度稳定性且力学性能优异，具有广泛的应用前景，且制备工艺简单，操作方便重复性好。
Microwave dielectric ceramic and preparation method thereof
微波介质陶瓷及其制备方法
SU JINDONG (author) / JIANG SHAOHUA (author) / FAN YU (author) / YU LIANG (author) / GUO HUAI (author) / LIANG BAOLONG (author)
2021-09-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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