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Aluminum oxide porous ceramic for air bearing and preparation method of aluminum oxide porous ceramic
Aluminum oxide porous ceramic for an air bearing is formed by sintering reaction raw materials, and the reaction raw materials are prepared from, by mass, 100 parts of aluminum oxide micro powder, 30-50 parts of zirconium oxide fibers, 17-35 parts of sintering aids, 8-16 parts of low-temperature glass melting powder and 5-20 parts of vegetable sponge, wherein the aluminum oxide micro powder is aluminum oxide particles with the average diameter being 2-20 micrometers, the average diameter of the zirconium oxide fibers is 0.8-1.2 microns, the average length of the zirconium oxide fibers is 20-100 microns, the vegetable sponge is dried at 60-80 DEG C after being cleaned and is added into the reaction raw materials before sintering, and the vegetable sponge is at least penetrated through the reaction raw materials in length. The sintering conditions are as follows: the temperature is increased to 500-600 DEG C from room temperature at the speed of 5-8 DEG C/min, the temperature is kept for 3-5 hours, then the temperature is increased to 1400-1600 DEG C at the speed of 2-3 DEG C/min, and the temperature is kept for 6-10 hours.
一种气浮轴承用氧化铝多孔陶瓷，由反应原料烧结而成，所述反应原料按质量份数配比由100份氧化铝微粉、30‑50份氧化锆纤维、17‑35份烧结助剂、8‑16份低温玻璃熔融粉和5‑20份丝瓜瓤组成，其中氧化铝微粉是平均直径为2μm‑20μm的氧化铝颗粒，其中氧化锆纤维的平均直径为0.8‑1.2μm、平均长度为20‑100μm，其中丝瓜瓤洗净后在60‑80℃下烘干，于烧结前加入反应原料中，且丝瓜瓤的长度保证至少贯穿反应原料；所述烧结条件是：以5‑8℃/min的速度从室温升温至500‑600℃，保温3‑5小时后以2‑3℃/min的速度升温至1400‑1600℃，保温6‑10小时。
Aluminum oxide porous ceramic for air bearing and preparation method of aluminum oxide porous ceramic
Aluminum oxide porous ceramic for an air bearing is formed by sintering reaction raw materials, and the reaction raw materials are prepared from, by mass, 100 parts of aluminum oxide micro powder, 30-50 parts of zirconium oxide fibers, 17-35 parts of sintering aids, 8-16 parts of low-temperature glass melting powder and 5-20 parts of vegetable sponge, wherein the aluminum oxide micro powder is aluminum oxide particles with the average diameter being 2-20 micrometers, the average diameter of the zirconium oxide fibers is 0.8-1.2 microns, the average length of the zirconium oxide fibers is 20-100 microns, the vegetable sponge is dried at 60-80 DEG C after being cleaned and is added into the reaction raw materials before sintering, and the vegetable sponge is at least penetrated through the reaction raw materials in length. The sintering conditions are as follows: the temperature is increased to 500-600 DEG C from room temperature at the speed of 5-8 DEG C/min, the temperature is kept for 3-5 hours, then the temperature is increased to 1400-1600 DEG C at the speed of 2-3 DEG C/min, and the temperature is kept for 6-10 hours.
一种气浮轴承用氧化铝多孔陶瓷，由反应原料烧结而成，所述反应原料按质量份数配比由100份氧化铝微粉、30‑50份氧化锆纤维、17‑35份烧结助剂、8‑16份低温玻璃熔融粉和5‑20份丝瓜瓤组成，其中氧化铝微粉是平均直径为2μm‑20μm的氧化铝颗粒，其中氧化锆纤维的平均直径为0.8‑1.2μm、平均长度为20‑100μm，其中丝瓜瓤洗净后在60‑80℃下烘干，于烧结前加入反应原料中，且丝瓜瓤的长度保证至少贯穿反应原料；所述烧结条件是：以5‑8℃/min的速度从室温升温至500‑600℃，保温3‑5小时后以2‑3℃/min的速度升温至1400‑1600℃，保温6‑10小时。
Aluminum oxide porous ceramic for air bearing and preparation method of aluminum oxide porous ceramic
一种气浮轴承用氧化铝多孔陶瓷及其制备方法
ZHU KONGJUN (Autor:in) / DU JIANZHOU (Autor:in) / JIN DONGPING (Autor:in) / SHI FENG (Autor:in)
23.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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