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Zirconium oxide ceramic material as well as preparation method and application thereof
The invention relates to the technical field of ceramic materials, and discloses a zirconia ceramic material and a preparation method and application thereof, the zirconia ceramic material comprises zirconia, yttrium oxide, cerium oxide, alumina and magnesium oxide; the mass ratio of the zirconium oxide to the yttrium oxide to the cerium oxide to the aluminum oxide to the magnesium oxide is (90-92): (2-4): (4-8): (0.1-0.5): (0.4-0.7). According to the invention, tetravalent cerium oxide is introduced into the zirconium oxide ceramic material and is matched with tetravalent zirconium oxide, so that no oxygen vacancy is generated after doping, a diffusion channel of water molecules in a formed CeO2-Y2O3-ZrO2 system is blocked, and aging hydrolysis can be effectively avoided; meanwhile, CeO2 and ZrO2 enter crystal lattices of the ceramic material in an ion replacement manner, so that the crystal lattices are distorted, lattice defects are increased, and diffusion activation energy is reduced, thereby promoting ion diffusion and further reducing the sintering temperature of the ceramic material.
本发明涉及陶瓷材料技术领域，公开了一种氧化锆陶瓷材料及其制备方法与应用，所述氧化锆陶瓷材料包括：氧化锆、氧化钇、氧化铈、氧化铝、氧化镁；所述氧化锆、氧化钇、氧化铈、氧化铝、氧化镁的质量比为(90‑92)：(2‑4)：(4‑8)：(0.1‑0.5)：(0.4‑0.7)。本发明在氧化锆陶瓷材料中引入四价的氧化铈，同时配合四价的氧化锆，掺杂后不产生氧空位，形成的CeO2‑Y2O3‑ZrO2体系中水分子的扩散通道受阻，可有效避免老化水解；同时，CeO2与ZrO2通过离子置换的方式进入陶瓷材料晶格中，导致晶格产生畸变，增加晶格缺陷，降低扩散活化能，从而促进离子的扩散，进而降低陶瓷材料的烧结温度。
Zirconium oxide ceramic material as well as preparation method and application thereof
The invention relates to the technical field of ceramic materials, and discloses a zirconia ceramic material and a preparation method and application thereof, the zirconia ceramic material comprises zirconia, yttrium oxide, cerium oxide, alumina and magnesium oxide; the mass ratio of the zirconium oxide to the yttrium oxide to the cerium oxide to the aluminum oxide to the magnesium oxide is (90-92): (2-4): (4-8): (0.1-0.5): (0.4-0.7). According to the invention, tetravalent cerium oxide is introduced into the zirconium oxide ceramic material and is matched with tetravalent zirconium oxide, so that no oxygen vacancy is generated after doping, a diffusion channel of water molecules in a formed CeO2-Y2O3-ZrO2 system is blocked, and aging hydrolysis can be effectively avoided; meanwhile, CeO2 and ZrO2 enter crystal lattices of the ceramic material in an ion replacement manner, so that the crystal lattices are distorted, lattice defects are increased, and diffusion activation energy is reduced, thereby promoting ion diffusion and further reducing the sintering temperature of the ceramic material.
本发明涉及陶瓷材料技术领域，公开了一种氧化锆陶瓷材料及其制备方法与应用，所述氧化锆陶瓷材料包括：氧化锆、氧化钇、氧化铈、氧化铝、氧化镁；所述氧化锆、氧化钇、氧化铈、氧化铝、氧化镁的质量比为(90‑92)：(2‑4)：(4‑8)：(0.1‑0.5)：(0.4‑0.7)。本发明在氧化锆陶瓷材料中引入四价的氧化铈，同时配合四价的氧化锆，掺杂后不产生氧空位，形成的CeO2‑Y2O3‑ZrO2体系中水分子的扩散通道受阻，可有效避免老化水解；同时，CeO2与ZrO2通过离子置换的方式进入陶瓷材料晶格中，导致晶格产生畸变，增加晶格缺陷，降低扩散活化能，从而促进离子的扩散，进而降低陶瓷材料的烧结温度。
Zirconium oxide ceramic material as well as preparation method and application thereof
一种氧化锆陶瓷材料及其制备方法与应用
LIU YUNPENG (author) / ZHANG ZHONGCHUN (author) / PENG JIANLIN (author)
2024-10-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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