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Microwave dielectric ceramic with stable temperature and adjustable dielectric constant and preparation method
The invention discloses a microwave dielectric ceramic with a stable temperature and adjustable dialectic constant. The chemical formula of the microwave dialectic ceramic is (1-n) MgTi1-x (Al0.5Nb0.5) xO3-nSrTi1-ySiyO3, wherein the n is bigger than 0.01 and smaller than 0.08; the x is bigger than 0.01 and smaller than 0.05; the y is bigger than 0.03 and smaller than 0.06. Correspondingly, the invention also discloses a preparation method of the microwave dielectric ceramic with the stable temperature and adjustable dialectic constant. The final product provided by the invention has the adjustable dielectric constant (20-30, 25 DEG C), high quality factors (over 50000), adjustable temperature stability (equal to or smaller than +/-300 ppm/DEG C, a temperature range: minus 40 DEG C to 85 DEG C); under the situation that the stable temperature is guaranteed, the dielectric constant can be adjusted within a larger range, the design of microwave elements and parts with different sizes is achieved, and the microwave dialectic ceramic is convenient for application.
Microwave dielectric ceramic with stable temperature and adjustable dielectric constant and preparation method
The invention discloses a microwave dielectric ceramic with a stable temperature and adjustable dialectic constant. The chemical formula of the microwave dialectic ceramic is (1-n) MgTi1-x (Al0.5Nb0.5) xO3-nSrTi1-ySiyO3, wherein the n is bigger than 0.01 and smaller than 0.08; the x is bigger than 0.01 and smaller than 0.05; the y is bigger than 0.03 and smaller than 0.06. Correspondingly, the invention also discloses a preparation method of the microwave dielectric ceramic with the stable temperature and adjustable dialectic constant. The final product provided by the invention has the adjustable dielectric constant (20-30, 25 DEG C), high quality factors (over 50000), adjustable temperature stability (equal to or smaller than +/-300 ppm/DEG C, a temperature range: minus 40 DEG C to 85 DEG C); under the situation that the stable temperature is guaranteed, the dielectric constant can be adjusted within a larger range, the design of microwave elements and parts with different sizes is achieved, and the microwave dialectic ceramic is convenient for application.
Microwave dielectric ceramic with stable temperature and adjustable dielectric constant and preparation method
GONG YIHUI (Autor:in) / XU HAIWEI (Autor:in)
23.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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