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Titanium dioxide-based ceramic material with low-and-medium-frequency ultra-low dielectric loss and high dielectric constant, and preparation method of titanium dioxide-based ceramic material
The invention discloses a titanium dioxide-based ceramic material with medium-and-low-frequency ultralow dielectric loss and high dielectric constant and a preparation method thereof. The general formula of the ceramic material is (Cu<1/3>Nb<2/3>)Ti<1-x>O<2>, wherein x represents mole fractions, and the value of x is in a range of 0.005-0.015. The preparation method of the ceramic material is simple in process, low in cost, good in repeatability and high in yield, metal elements Cu<2+> and Nb<5+> are co-doped in the titanium dioxide-based ceramic material, so the ceramic material has a high dielectric constant and low dielectric loss within the frequency range of 40-106 Hz, and especially, the low-and-medium-frequency dielectric loss of the ceramic material is remarkably reduced, and the dielectric loss of the ceramic material is always kept 0.03 or below within the frequency range of 40-104 Hz; and the dielectric constant is high and always kept at 26000 or above, and meanwhile, the ceramic material has excellent frequency and temperature stability which is kept between -7.5% to 7.5%, meets the parameter requirements of an X9F ceramic capacitor, and has huge application value.
本发明公开了一种中低频超低介电损耗和高介电常数的二氧化钛基陶瓷材料及制备方法，该陶瓷材料的通式为(Cu1/3Nb2/3)xTi1‑xO2，其中x表示摩尔分数，x的取值为0.005～0.015。本发明陶瓷材料的制备方法简单、成本低廉、重复性好、成品率高，通过在二氧化钛基陶瓷材料中共掺金属元素Cu2+和Nb5+，使陶瓷材料在频率为40～106Hz范围内具有高介电常数、低介电损耗，尤其是显著降低了陶瓷材料的中低频介电损耗，在40～104Hz频率范围内介电损耗始终保持在0.03以下，且介电常数较高，始终保持在26000以上，并且同时具有优异的频率及温度稳定性，保持在‑7.5％～7.5％之间，符合X9F陶瓷电容器的参数要求，具有巨大的应用价值。
Titanium dioxide-based ceramic material with low-and-medium-frequency ultra-low dielectric loss and high dielectric constant, and preparation method of titanium dioxide-based ceramic material
The invention discloses a titanium dioxide-based ceramic material with medium-and-low-frequency ultralow dielectric loss and high dielectric constant and a preparation method thereof. The general formula of the ceramic material is (Cu<1/3>Nb<2/3>)Ti<1-x>O<2>, wherein x represents mole fractions, and the value of x is in a range of 0.005-0.015. The preparation method of the ceramic material is simple in process, low in cost, good in repeatability and high in yield, metal elements Cu<2+> and Nb<5+> are co-doped in the titanium dioxide-based ceramic material, so the ceramic material has a high dielectric constant and low dielectric loss within the frequency range of 40-106 Hz, and especially, the low-and-medium-frequency dielectric loss of the ceramic material is remarkably reduced, and the dielectric loss of the ceramic material is always kept 0.03 or below within the frequency range of 40-104 Hz; and the dielectric constant is high and always kept at 26000 or above, and meanwhile, the ceramic material has excellent frequency and temperature stability which is kept between -7.5% to 7.5%, meets the parameter requirements of an X9F ceramic capacitor, and has huge application value.
本发明公开了一种中低频超低介电损耗和高介电常数的二氧化钛基陶瓷材料及制备方法，该陶瓷材料的通式为(Cu1/3Nb2/3)xTi1‑xO2，其中x表示摩尔分数，x的取值为0.005～0.015。本发明陶瓷材料的制备方法简单、成本低廉、重复性好、成品率高，通过在二氧化钛基陶瓷材料中共掺金属元素Cu2+和Nb5+，使陶瓷材料在频率为40～106Hz范围内具有高介电常数、低介电损耗，尤其是显著降低了陶瓷材料的中低频介电损耗，在40～104Hz频率范围内介电损耗始终保持在0.03以下，且介电常数较高，始终保持在26000以上，并且同时具有优异的频率及温度稳定性，保持在‑7.5％～7.5％之间，符合X9F陶瓷电容器的参数要求，具有巨大的应用价值。
Titanium dioxide-based ceramic material with low-and-medium-frequency ultra-low dielectric loss and high dielectric constant, and preparation method of titanium dioxide-based ceramic material
中低频超低介电损耗和高介电常数的二氧化钛基陶瓷材料及制备方法
YANG ZUPEI (Autor:in) / ZHANG YINGNING (Autor:in) / LIANG PENGFEI (Autor:in) / PENG ZHANHUI (Autor:in) / CHAO XIAOLIAN (Autor:in)
14.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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