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Microwave dielectric ceramic material for high Q-value multi-layer ceramic capacitor
The invention discloses a microwave dielectric ceramic material for a high Q-value multi-layer ceramic capacitor. The composition of the material is (Nd1-xYx)NbO4, wherein the mole number x is greater than or equal to 0.02 but less than or equal to 0.15. The material is prepared by the following steps of firstly proportioning Nd2O3, Y2O3 and Nb2O5 raw materials according to a chemical formula; then carrying out ball-milling, drying, sieving, calcining, secondary ball-milling and granulating for compression moulding to obtain a blank; sintering the blank at 1150-1200 DEG C; and keeping the temperature for 4 hours to prepare the microwave dielectric ceramic material, wherein the dielectric constant is 19.87, the temperature coefficient of resonance frequency is -18.84 ppm/DEG C, and the maximum value of quality factor is 81100GH. In addition, the preparation technology is simple, the process is environmentally friendly, and the material is a promising microwave dielectric material.
Microwave dielectric ceramic material for high Q-value multi-layer ceramic capacitor
The invention discloses a microwave dielectric ceramic material for a high Q-value multi-layer ceramic capacitor. The composition of the material is (Nd1-xYx)NbO4, wherein the mole number x is greater than or equal to 0.02 but less than or equal to 0.15. The material is prepared by the following steps of firstly proportioning Nd2O3, Y2O3 and Nb2O5 raw materials according to a chemical formula; then carrying out ball-milling, drying, sieving, calcining, secondary ball-milling and granulating for compression moulding to obtain a blank; sintering the blank at 1150-1200 DEG C; and keeping the temperature for 4 hours to prepare the microwave dielectric ceramic material, wherein the dielectric constant is 19.87, the temperature coefficient of resonance frequency is -18.84 ppm/DEG C, and the maximum value of quality factor is 81100GH. In addition, the preparation technology is simple, the process is environmentally friendly, and the material is a promising microwave dielectric material.
Microwave dielectric ceramic material for high Q-value multi-layer ceramic capacitor
ZHANG PING (Autor:in) / ZHAO YONGGUI (Autor:in)
13.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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