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Low-sintering medium microwave dielectric ceramic material and preparation method thereof
The invention discloses a low-sintering medium microwave dielectric ceramic material and a preparation method thereof, and belongs to the technical field of microwave components. The microwave dielectric ceramic material comprises a sintered block, a doping agent and a glass phase, the chemical formula of the main crystal phase of the sintered block is BaZn2Ti4O11-0.07 Ba4Ti13O30, and the main crystal phase of the sintered block is BaZn2Ti4O11. The modified doping agent comprises at least one of R2O3, Nb2O5, CaTiO3, MnCO3 and MgO, wherein R is La or Dy; the glass phase additive is prepared from ZnO, B2O3, Nd2O3 and BaCO3. According to the low-sintering medium microwave dielectric ceramic material and the preparation method thereof provided by the invention, a BaZn2Ti4O11-0.07 Ba4Ti13O30-based sintered block is formed by doping ZnO with a BaTi4O9 phase, the synthesis temperature of the BaTi4O9 phase is reduced to about 1150 DEG C, then a glass additive is introduced to cool the BaZn2Ti4O11-0.07 Ba4Ti13O30-based sintered block again, and the compact BaZn2Ti4O11-0.07 Ba4Ti13O30-based microwave dielectric ceramic material is obtained at the temperature of 990-1040 DEG C.
本发明公开了一种低烧中介微波介质陶瓷材料及其制备方法，属于微波元器件技术领域。所述微波介质陶瓷材料包括：烧块、掺杂剂和玻璃相；所述烧块的主晶相化学式为BaZn2Ti4O11‑0.07Ba4Ti13O30；所述改性掺杂剂包括：R2O3、Nb2O5、CaTiO3、MnCO3和MgO中的至少一种，其中R为La、Dy；所述玻璃相添加剂包括：ZnO、B2O3、Nd2O3和BaCO3。本发明提供的低烧中介微波介质陶瓷材料及其制备方法，通过ZnO掺杂BaTi4O9相形成的BaZn2Ti4O11‑0.07Ba4Ti13O30基烧块，先将BaTi4O9相合成温度降低至1150℃左右，后引入玻璃添加剂再次对BaZn2Ti4O11‑0.07Ba4Ti13O30基烧块降温，在990℃～1040℃获得致密的BaZn2Ti4O11‑0.07Ba4Ti13O30基微波介质陶瓷材料。
Low-sintering medium microwave dielectric ceramic material and preparation method thereof
The invention discloses a low-sintering medium microwave dielectric ceramic material and a preparation method thereof, and belongs to the technical field of microwave components. The microwave dielectric ceramic material comprises a sintered block, a doping agent and a glass phase, the chemical formula of the main crystal phase of the sintered block is BaZn2Ti4O11-0.07 Ba4Ti13O30, and the main crystal phase of the sintered block is BaZn2Ti4O11. The modified doping agent comprises at least one of R2O3, Nb2O5, CaTiO3, MnCO3 and MgO, wherein R is La or Dy; the glass phase additive is prepared from ZnO, B2O3, Nd2O3 and BaCO3. According to the low-sintering medium microwave dielectric ceramic material and the preparation method thereof provided by the invention, a BaZn2Ti4O11-0.07 Ba4Ti13O30-based sintered block is formed by doping ZnO with a BaTi4O9 phase, the synthesis temperature of the BaTi4O9 phase is reduced to about 1150 DEG C, then a glass additive is introduced to cool the BaZn2Ti4O11-0.07 Ba4Ti13O30-based sintered block again, and the compact BaZn2Ti4O11-0.07 Ba4Ti13O30-based microwave dielectric ceramic material is obtained at the temperature of 990-1040 DEG C.
本发明公开了一种低烧中介微波介质陶瓷材料及其制备方法，属于微波元器件技术领域。所述微波介质陶瓷材料包括：烧块、掺杂剂和玻璃相；所述烧块的主晶相化学式为BaZn2Ti4O11‑0.07Ba4Ti13O30；所述改性掺杂剂包括：R2O3、Nb2O5、CaTiO3、MnCO3和MgO中的至少一种，其中R为La、Dy；所述玻璃相添加剂包括：ZnO、B2O3、Nd2O3和BaCO3。本发明提供的低烧中介微波介质陶瓷材料及其制备方法，通过ZnO掺杂BaTi4O9相形成的BaZn2Ti4O11‑0.07Ba4Ti13O30基烧块，先将BaTi4O9相合成温度降低至1150℃左右，后引入玻璃添加剂再次对BaZn2Ti4O11‑0.07Ba4Ti13O30基烧块降温，在990℃～1040℃获得致密的BaZn2Ti4O11‑0.07Ba4Ti13O30基微波介质陶瓷材料。
Low-sintering medium microwave dielectric ceramic material and preparation method thereof
一种低烧中介微波介质陶瓷材料及其制备方法
LUO TING (Autor:in) / JIANG QI (Autor:in) / NA WENJU (Autor:in) / WANG XIAOLING (Autor:in) / ZHAO YANGJUN (Autor:in) / LIU YANGQIONG (Autor:in) / JIANG JUNJUN (Autor:in)
17.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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