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Water-based gel tape-cast barium strontium titanate textured ceramic and preparation method thereof
The invention discloses water-based gel tape-cast barium strontium titanate textured ceramic, belonging to the technical field of electronic materials. The barium strontium titanate textured ceramic comprises barium strontium titanate powder and flaky barium strontium titanate seed crystals, wherein the flaky barium strontium titanate seed crystals are directionally arranged in the barium strontium titanate powder in a tape casting direction in virtue of a tape casting process so as to form the ceramic with a textured structure. The relative density of the ceramic is 95%-98%, the texture degree of the ceramic is 55%-90%, the dielectric constant of the ceramic is 8000-11000, the dielectric loss of the ceramic is 0.005-0.04, and the dielectric adjustability of the ceramic is 40%-60%. The invention also provides a preparation method of the water-based gel tape-cast barium strontium titanate textured ceramic. The flaky barium strontium titanate seed crystals and the barium strontium titanate powder are combined, the flaky barium strontium titanate seed crystals are directionally arranged in the barium strontium titanate powder in the tape casting direction in virtue of the tape castingprocess, so the purpose of improving the dielectric property of the ceramic can be achieved while the orientation of the ceramic is improved.
本发明公开了一种水基凝胶流延成型的钛酸锶钡织构陶瓷，涉及电子材料技术领域。所述钛酸锶钡织构陶瓷包括钛酸锶钡粉体和钛酸锶钡片状籽晶，在流延工艺下使钛酸锶钡片状籽晶沿流延方向在钛酸锶钡粉体中定向排列，形成具有织构组织的陶瓷；其相对密度为95％～98％，织构度为55％～90％，介电常数为8000～11000，介电损耗为0.005～0.04，介电可调性为40％～60％；本发明还提供了一种水基凝胶流延成型的钛酸锶钡织构陶瓷的制备方法。本发明利用片状钛酸锶钡籽晶与钛酸锶钡粉体结合，在流延工艺下使片状钛酸锶钡籽晶沿流延方向在钛酸锶钡粉体中定向排列，在提高陶瓷材料的取向性的同时，能够达到提高陶瓷材料介电性能的目的。
Water-based gel tape-cast barium strontium titanate textured ceramic and preparation method thereof
The invention discloses water-based gel tape-cast barium strontium titanate textured ceramic, belonging to the technical field of electronic materials. The barium strontium titanate textured ceramic comprises barium strontium titanate powder and flaky barium strontium titanate seed crystals, wherein the flaky barium strontium titanate seed crystals are directionally arranged in the barium strontium titanate powder in a tape casting direction in virtue of a tape casting process so as to form the ceramic with a textured structure. The relative density of the ceramic is 95%-98%, the texture degree of the ceramic is 55%-90%, the dielectric constant of the ceramic is 8000-11000, the dielectric loss of the ceramic is 0.005-0.04, and the dielectric adjustability of the ceramic is 40%-60%. The invention also provides a preparation method of the water-based gel tape-cast barium strontium titanate textured ceramic. The flaky barium strontium titanate seed crystals and the barium strontium titanate powder are combined, the flaky barium strontium titanate seed crystals are directionally arranged in the barium strontium titanate powder in the tape casting direction in virtue of the tape castingprocess, so the purpose of improving the dielectric property of the ceramic can be achieved while the orientation of the ceramic is improved.
本发明公开了一种水基凝胶流延成型的钛酸锶钡织构陶瓷，涉及电子材料技术领域。所述钛酸锶钡织构陶瓷包括钛酸锶钡粉体和钛酸锶钡片状籽晶，在流延工艺下使钛酸锶钡片状籽晶沿流延方向在钛酸锶钡粉体中定向排列，形成具有织构组织的陶瓷；其相对密度为95％～98％，织构度为55％～90％，介电常数为8000～11000，介电损耗为0.005～0.04，介电可调性为40％～60％；本发明还提供了一种水基凝胶流延成型的钛酸锶钡织构陶瓷的制备方法。本发明利用片状钛酸锶钡籽晶与钛酸锶钡粉体结合，在流延工艺下使片状钛酸锶钡籽晶沿流延方向在钛酸锶钡粉体中定向排列，在提高陶瓷材料的取向性的同时，能够达到提高陶瓷材料介电性能的目的。
Water-based gel tape-cast barium strontium titanate textured ceramic and preparation method thereof
一种水基凝胶流延成型的钛酸锶钡织构陶瓷及其制备方法
XU JIE (author) / WANG YUJIAN (author) / GUO YITING (author) / ZHAO JIA (author) / LIU SHUHANG (author) / MENG XUANYU (author) / GAO FENG (author)
2020-05-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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