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Zirconia ceramic
The invention discloses a zirconia ceramic. The zirconia ceramic comprises a toughening agent and a stabilizing agent, wherein the toughening agent is a transition metal oxide, and the content of thetoughening agent in the zirconia ceramic is 0.05-20 wt%; the stabilizing agent is Y2O3, and the content of Y2O3 in the zirconia ceramic is 3.1-7 wt%; and tetragonal zirconium oxide with a core-shell structure exists in the zirconium oxide ceramic, and the Y2O3 content at the center of a tetragonal zirconium oxide crystal with the core-shell structure is lower than the Y2O3 content of the part awayfrom the center of the tetragonal zirconium oxide crystal. By adding a proper amount of the transition metal oxide into a zirconia ceramic material, the impact resistance of the material is greatly improved, the falling ball impact height of the prepared zirconia ceramic is increased to 20 cm or above from 15 cm or below in the prior art, and the use requirements of outer packaging components ofportable electronic equipment in the prior art are met.
本发明公开了一种氧化锆陶瓷。本发明的氧化锆陶瓷包含增韧剂和稳定剂，所述增韧剂为过渡族金属氧化物，所述氧化锆陶瓷中增韧剂的含量为0.05‑20wt％，所述稳定剂为Y2O3，且所述氧化锆陶瓷中Y2O3的含量为3.1‑7wt％；所述氧化锆陶瓷中存在具有核壳结构的四方氧化锆，所述具有核壳结构的四方氧化锆晶体中心的Y2O3含量低于远离中心部分的Y2O3含量。本发明通过在氧化锆陶瓷材料中添加适量的过渡族金属氧化物，大幅提高了材料的抗冲击性能，制备得到的氧化锆陶瓷的落球冲击高度从现有的15cm以下，提高到20cm以上，满足了现有便携式电子设备外包装部件的使用需求。
Zirconia ceramic
The invention discloses a zirconia ceramic. The zirconia ceramic comprises a toughening agent and a stabilizing agent, wherein the toughening agent is a transition metal oxide, and the content of thetoughening agent in the zirconia ceramic is 0.05-20 wt%; the stabilizing agent is Y2O3, and the content of Y2O3 in the zirconia ceramic is 3.1-7 wt%; and tetragonal zirconium oxide with a core-shell structure exists in the zirconium oxide ceramic, and the Y2O3 content at the center of a tetragonal zirconium oxide crystal with the core-shell structure is lower than the Y2O3 content of the part awayfrom the center of the tetragonal zirconium oxide crystal. By adding a proper amount of the transition metal oxide into a zirconia ceramic material, the impact resistance of the material is greatly improved, the falling ball impact height of the prepared zirconia ceramic is increased to 20 cm or above from 15 cm or below in the prior art, and the use requirements of outer packaging components ofportable electronic equipment in the prior art are met.
本发明公开了一种氧化锆陶瓷。本发明的氧化锆陶瓷包含增韧剂和稳定剂，所述增韧剂为过渡族金属氧化物，所述氧化锆陶瓷中增韧剂的含量为0.05‑20wt％，所述稳定剂为Y2O3，且所述氧化锆陶瓷中Y2O3的含量为3.1‑7wt％；所述氧化锆陶瓷中存在具有核壳结构的四方氧化锆，所述具有核壳结构的四方氧化锆晶体中心的Y2O3含量低于远离中心部分的Y2O3含量。本发明通过在氧化锆陶瓷材料中添加适量的过渡族金属氧化物，大幅提高了材料的抗冲击性能，制备得到的氧化锆陶瓷的落球冲击高度从现有的15cm以下，提高到20cm以上，满足了现有便携式电子设备外包装部件的使用需求。
Zirconia ceramic
一种氧化锆陶瓷
QIU JIHUA (author) / ZHENG ZHENHONG (author)
2021-03-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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