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Microwave dielectric ceramic with stable temperature in wide temperature range as well as preparation method and application of microwave dielectric ceramic
The invention belongs to the technical field of ceramic materials, and provides a microwave dielectric ceramic with stable temperature in a wide temperature range and a preparation method and application thereof. The chemical formula of the microwave dielectric ceramic provided by the invention is as follows: (1-x-y) Mg < 1.2 > TiO < 3.2-x > Ca < 0.61 > La < 0.26 > TiO < 3-y > Zn < 1.8 > SiO < 3.8 >, wherein x is equal to 0.13-0.16, y is equal to 0.04-0.1, (1-x-y) is larger than or equal to 0.75 and smaller than or equal to 0.80, the dielectric constant (K) of the microwave dielectric ceramic is equal to 21 +/-1, and the quality factor (Qf) is gt; the temperature coefficient of resonance frequency (tau f) is smaller than +/-4ppm/DEG C within the range of-40 DEG C to 140 DEG C. The microwave dielectric ceramic has high-quality factors and wide-temperature stability, can bear large temperature difference and can be well applied to the field of microwave communication, and the temperature coefficient of resonance frequency (tau f) is smaller than +/-4ppm/DEG C within the range of-40 DEG C to 140 DEG C.
本发明属于陶瓷材料技术领域，提供了一种宽温范围内温度稳定的微波介质陶瓷及其制备方法和应用。本发明提供的微波介质陶瓷的化学式如下所示：(1‑x‑y)Mg1.2TiO3.2‑xCa0.61La0.26TiO3‑yZn1.8SiO3.8；其中，x＝0.13‑0.16、y＝0.04‑0.1，0.75≤(1‑x‑y)≤0.80，本发明的微波介质陶瓷介电常数(K)＝21±1，品质因子(Qf)>70000，谐振频率温度系数(τf)在‑40‑140℃范围内均小于±4ppm/℃，不仅具有高品质因子，而且还具有宽温稳定性，能够承受较大温差，可以很好地应用于微波通信领域。
Microwave dielectric ceramic with stable temperature in wide temperature range as well as preparation method and application of microwave dielectric ceramic
The invention belongs to the technical field of ceramic materials, and provides a microwave dielectric ceramic with stable temperature in a wide temperature range and a preparation method and application thereof. The chemical formula of the microwave dielectric ceramic provided by the invention is as follows: (1-x-y) Mg < 1.2 > TiO < 3.2-x > Ca < 0.61 > La < 0.26 > TiO < 3-y > Zn < 1.8 > SiO < 3.8 >, wherein x is equal to 0.13-0.16, y is equal to 0.04-0.1, (1-x-y) is larger than or equal to 0.75 and smaller than or equal to 0.80, the dielectric constant (K) of the microwave dielectric ceramic is equal to 21 +/-1, and the quality factor (Qf) is gt; the temperature coefficient of resonance frequency (tau f) is smaller than +/-4ppm/DEG C within the range of-40 DEG C to 140 DEG C. The microwave dielectric ceramic has high-quality factors and wide-temperature stability, can bear large temperature difference and can be well applied to the field of microwave communication, and the temperature coefficient of resonance frequency (tau f) is smaller than +/-4ppm/DEG C within the range of-40 DEG C to 140 DEG C.
本发明属于陶瓷材料技术领域，提供了一种宽温范围内温度稳定的微波介质陶瓷及其制备方法和应用。本发明提供的微波介质陶瓷的化学式如下所示：(1‑x‑y)Mg1.2TiO3.2‑xCa0.61La0.26TiO3‑yZn1.8SiO3.8；其中，x＝0.13‑0.16、y＝0.04‑0.1，0.75≤(1‑x‑y)≤0.80，本发明的微波介质陶瓷介电常数(K)＝21±1，品质因子(Qf)>70000，谐振频率温度系数(τf)在‑40‑140℃范围内均小于±4ppm/℃，不仅具有高品质因子，而且还具有宽温稳定性，能够承受较大温差，可以很好地应用于微波通信领域。
Microwave dielectric ceramic with stable temperature in wide temperature range as well as preparation method and application of microwave dielectric ceramic
一种宽温范围内温度稳定的微波介质陶瓷及其制备方法和应用
HAN LIQIANG (author) / XIAO LI (author) / LI XIULAN (author)
2024-12-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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