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Complex-phase giant dielectric ceramic material with high breakdown field strength and preparation method thereof
The invention relates to a titanium dioxide based giant dielectric ceramic material and a preparation method thereof. The general formula of the titanium dioxide based giant dielectric ceramic material is (A0.5Ta0.5)xTi1-xO2+y wt% B (x=0.01-0.1, y=1-10), A is selected from at least one of Ho, Tm, Gd, Lu, La, Al, Ga and In, and B is selected from at least one of SiO2, Al3O2, Bi3O2, B3O2, ZrO2, SrTiO3 and CaTiO3. The preparation method is a solid-phase sintering method, the method is simple, the repeatability is good, the yield is high, the frequency stability of the obtained giant dielectric ceramic material within the range of 20 Hz-5 MHz is good, the dielectric constant ranges from 103 to 105, and the breakdown field strength reaches up to 322-1985 V/cm. The method has practical application value in various electronic devices such as capacitors, dynamic memories and the like.
本发明涉及一种二氧化钛基巨介电陶瓷材料及其制备方法，所述的二氧化钛基复相巨介电陶瓷材料的通式为(A0.5Ta0.5)xTi1‑xO2+y wt%B(x=0.01‑0.1,y=1‑10)，其中A选自Ho、Tm、Gd、Lu、La、Al、Ga、In中的至少一种，B选自SiO2、Al3O2、Bi3O2、B3O2、ZrO2、SrTiO3、CaTiO3中的至少一种。其制备方法为固相烧结法，方法简单、重复性好、成品率高，所得巨介电陶瓷材料在20Hz~5MHz范围内的频率稳定性较好，且介电常数在103~105之间，击穿场强高达322~1985 V/cm。在电容器及动态存储器等各种电子器件中具有实际的应用价值。
Complex-phase giant dielectric ceramic material with high breakdown field strength and preparation method thereof
The invention relates to a titanium dioxide based giant dielectric ceramic material and a preparation method thereof. The general formula of the titanium dioxide based giant dielectric ceramic material is (A0.5Ta0.5)xTi1-xO2+y wt% B (x=0.01-0.1, y=1-10), A is selected from at least one of Ho, Tm, Gd, Lu, La, Al, Ga and In, and B is selected from at least one of SiO2, Al3O2, Bi3O2, B3O2, ZrO2, SrTiO3 and CaTiO3. The preparation method is a solid-phase sintering method, the method is simple, the repeatability is good, the yield is high, the frequency stability of the obtained giant dielectric ceramic material within the range of 20 Hz-5 MHz is good, the dielectric constant ranges from 103 to 105, and the breakdown field strength reaches up to 322-1985 V/cm. The method has practical application value in various electronic devices such as capacitors, dynamic memories and the like.
本发明涉及一种二氧化钛基巨介电陶瓷材料及其制备方法，所述的二氧化钛基复相巨介电陶瓷材料的通式为(A0.5Ta0.5)xTi1‑xO2+y wt%B(x=0.01‑0.1,y=1‑10)，其中A选自Ho、Tm、Gd、Lu、La、Al、Ga、In中的至少一种，B选自SiO2、Al3O2、Bi3O2、B3O2、ZrO2、SrTiO3、CaTiO3中的至少一种。其制备方法为固相烧结法，方法简单、重复性好、成品率高，所得巨介电陶瓷材料在20Hz~5MHz范围内的频率稳定性较好，且介电常数在103~105之间，击穿场强高达322~1985 V/cm。在电容器及动态存储器等各种电子器件中具有实际的应用价值。
Complex-phase giant dielectric ceramic material with high breakdown field strength and preparation method thereof
一种高击穿场强的复相巨介电陶瓷材料及其制备方法
HU ZHANGGUI (author) / FAN JIANGTAO (author) / HE GANG (author) / CHEN YIMENG (author) / LONG ZHEN (author) / GUO SHUAI (author)
2021-12-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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