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Low-dielectric-constant titanate microwave dielectric ceramic as well as preparation method and application thereof
The invention provides low-dielectric-constant titanate microwave dielectric ceramic as well as a preparation method and application thereof, and belongs to the technical field of dielectric ceramic materials. The chemical composition of the titanate microwave dielectric ceramic with the low dielectric constant is Re2TiO5, wherein Re is Nd, Sm, Eu or Gd. The Nd2TiO5 single-phase powder, the Sm2TiO5 single-phase powder, the Eu2TiO5 single-phase powder and the Gd2TiO5 single-phase powder are respectively and accurately synthesized by designing a raw material pre-sintering process, granulation is performed by adding a binder before compression molding, molding is facilitated, finally, a sintering schedule is optimized, ceramic grain growth is promoted, the ceramic material with the excellent microwave dielectric property is obtained, the dielectric constant of the ceramic material reaches 13.4-15.7, the quality factor Q * f value reaches 8696-12698 GHz, and the microwave dielectric property of the ceramic material is greatly improved. The microwave dielectric ceramic can be widely used for manufacturing various dielectric substrates, resonators, filters and other microwave devices, and has great application value in industry.
本发明提出了一种低介电常数钛酸盐微波介电陶瓷及其制备方法与应用，属于介电陶瓷材料技术领域。本发明的低介电常数钛酸盐微波介电陶瓷的化学组成为Re2TiO5，其中Re为Nd、Sm、Eu或Gd。本发明通过设计原料预烧工艺分别精准合成Nd2TiO5、Sm2TiO5、Eu2TiO5和Gd2TiO5单相粉末，压制成型前采用添加粘结剂的方式造粒，有利于成型，最后优化烧结制度，促进陶瓷晶粒生长，获得一种具有优异微波介电性能的陶瓷材料，其介电常数达到13.4‑15.7，品质因数Q×f值达到8696‑12698GHz，可广泛用于各种介质基板、谐振器和滤波器等微波器件的制造，在工业上有着极大的应用价值。
Low-dielectric-constant titanate microwave dielectric ceramic as well as preparation method and application thereof
The invention provides low-dielectric-constant titanate microwave dielectric ceramic as well as a preparation method and application thereof, and belongs to the technical field of dielectric ceramic materials. The chemical composition of the titanate microwave dielectric ceramic with the low dielectric constant is Re2TiO5, wherein Re is Nd, Sm, Eu or Gd. The Nd2TiO5 single-phase powder, the Sm2TiO5 single-phase powder, the Eu2TiO5 single-phase powder and the Gd2TiO5 single-phase powder are respectively and accurately synthesized by designing a raw material pre-sintering process, granulation is performed by adding a binder before compression molding, molding is facilitated, finally, a sintering schedule is optimized, ceramic grain growth is promoted, the ceramic material with the excellent microwave dielectric property is obtained, the dielectric constant of the ceramic material reaches 13.4-15.7, the quality factor Q * f value reaches 8696-12698 GHz, and the microwave dielectric property of the ceramic material is greatly improved. The microwave dielectric ceramic can be widely used for manufacturing various dielectric substrates, resonators, filters and other microwave devices, and has great application value in industry.
本发明提出了一种低介电常数钛酸盐微波介电陶瓷及其制备方法与应用，属于介电陶瓷材料技术领域。本发明的低介电常数钛酸盐微波介电陶瓷的化学组成为Re2TiO5，其中Re为Nd、Sm、Eu或Gd。本发明通过设计原料预烧工艺分别精准合成Nd2TiO5、Sm2TiO5、Eu2TiO5和Gd2TiO5单相粉末，压制成型前采用添加粘结剂的方式造粒，有利于成型，最后优化烧结制度，促进陶瓷晶粒生长，获得一种具有优异微波介电性能的陶瓷材料，其介电常数达到13.4‑15.7，品质因数Q×f值达到8696‑12698GHz，可广泛用于各种介质基板、谐振器和滤波器等微波器件的制造，在工业上有着极大的应用价值。
Low-dielectric-constant titanate microwave dielectric ceramic as well as preparation method and application thereof
一种低介电常数钛酸盐微波介电陶瓷及其制备方法与应用
LI CHUNCHUN (author) / ZHU GUOBIN (author) / CHEN DEQIN (author) / YIN CHANGZHI (author) / ZHU XIAOWEI (author) / XIONG SIYU (author) / WANG ZHENGFENG (author)
2023-09-26
Patent
Electronic Resource
Chinese
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