A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to zirconia ceramic as well as a preparation method and application thereof, and belongs to the field of composite ceramic materials. The zirconia ceramic comprises the following crystal phases: Zr (1-x) MgxO2, Mg2MnO4 and MgO, and x is more than 0 and less than or equal to 0.25. Mg2MnO4 is adopted as a light phase to be added into zirconium oxide, part of Mg2MnO4 is decomposed at high temperature, part of Mg ions are combined with oxygen to form MgO, the other part of Mg ions enter zirconium oxide crystal lattices to form a solid solution Zr (1-x) MgxO2, the density of the zirconium oxide ceramic can be effectively reduced through the three phases of Mg2MnO4 and MgO, sintering densification of the zirconium oxide ceramic can also be effectively promoted, and the zirconium oxide ceramic has the advantages that the density of the zirconium oxide ceramic is improved; therefore, low-temperature sintering is achieved, grains are refined, and the material strength is improved. Meanwhile, the preparation process of the zirconia ceramic is simple, and industrial production is facilitated.
本发明涉及一种氧化锆陶瓷及其制备方法和应用，属于复合陶瓷材料领域。本发明所述氧化锆陶瓷包括以下晶相：Zr(1‑x)MgxO2、Mg2MnO4和MgO，其中，0＜x≤0.25。本发明采用Mg2MnO4作为轻质相加入至氧化锆中，在高温下Mg2MnO4部分发生分解，一部分Mg离子与氧气结合形成MgO，另一部分Mg离子进入氧化锆晶格中形成固溶体Zr(1‑x)MgxO2、Mg2MnO4和MgO三种物相不仅能够有效降低氧化锆陶瓷的密度，还能有效促进氧化锆陶瓷的烧结致密化，从而实现低温烧结，细化晶粒，提高材料强度。同时，本发明所述氧化锆陶瓷制备工艺简单，有利于工业化生产。
The invention relates to zirconia ceramic as well as a preparation method and application thereof, and belongs to the field of composite ceramic materials. The zirconia ceramic comprises the following crystal phases: Zr (1-x) MgxO2, Mg2MnO4 and MgO, and x is more than 0 and less than or equal to 0.25. Mg2MnO4 is adopted as a light phase to be added into zirconium oxide, part of Mg2MnO4 is decomposed at high temperature, part of Mg ions are combined with oxygen to form MgO, the other part of Mg ions enter zirconium oxide crystal lattices to form a solid solution Zr (1-x) MgxO2, the density of the zirconium oxide ceramic can be effectively reduced through the three phases of Mg2MnO4 and MgO, sintering densification of the zirconium oxide ceramic can also be effectively promoted, and the zirconium oxide ceramic has the advantages that the density of the zirconium oxide ceramic is improved; therefore, low-temperature sintering is achieved, grains are refined, and the material strength is improved. Meanwhile, the preparation process of the zirconia ceramic is simple, and industrial production is facilitated.
本发明涉及一种氧化锆陶瓷及其制备方法和应用，属于复合陶瓷材料领域。本发明所述氧化锆陶瓷包括以下晶相：Zr(1‑x)MgxO2、Mg2MnO4和MgO，其中，0＜x≤0.25。本发明采用Mg2MnO4作为轻质相加入至氧化锆中，在高温下Mg2MnO4部分发生分解，一部分Mg离子与氧气结合形成MgO，另一部分Mg离子进入氧化锆晶格中形成固溶体Zr(1‑x)MgxO2、Mg2MnO4和MgO三种物相不仅能够有效降低氧化锆陶瓷的密度，还能有效促进氧化锆陶瓷的烧结致密化，从而实现低温烧结，细化晶粒，提高材料强度。同时，本发明所述氧化锆陶瓷制备工艺简单，有利于工业化生产。
Zirconia ceramic as well as preparation method and application thereof
一种氧化锆陶瓷及其制备方法和应用
2023-07-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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