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High-aluminum black corundum ceramic material and preparation method thereof
The invention discloses a high-aluminum black corundum ceramic material, which is prepared from the following ingredients in parts by mass: 97 to 98 parts of aluminum oxide, 0.4 to 0.5 part of cobalt oxide, 1.0 to 1.9 parts of manganese dioxide, 0.1 part of magnesium oxide, 0.1 part of vanadium pentoxide, 0.1 part of silicon dioxide, 0.15 part of titanium dioxide and 0.15 part of boric acid. The aluminum oxide is composed of 87-88 parts of aluminum oxide coarse powder and 10 parts of aluminum oxide micro powder. The aluminum oxide coarse powder and the aluminum oxide micro powder are compounded for use, in the high-temperature sintering process, coarse particles induce grain development of fine particles so as to promote sintering, then manganese dioxide and titanium dioxide are added into a reaction system in a matched mode, a co-melt of MnO2-TiO2 has the effect of promoting sintering of the aluminum oxide ceramic, and the aluminum oxide ceramic has the effect of promoting sintering of the aluminum oxide ceramic. The boric acid is added, so that liquid phase and wet powder particles are generated in the sintering process, the liquid phase sintering effect is achieved, sintering is promoted, the sintering temperature can be greatly reduced, energy consumption is reduced, the preparation cost is reduced, and compared with foreign electronic ceramics, the competitiveness is improved, and popularization is facilitated.
本发明公开一种高铝黑色刚玉陶瓷材料，按照质量份计，包括有以下成分：氧化铝97‑98份、氧化钴0.4‑0.5份、二氧化锰1.0‑1.9份、氧化镁0.1份、五氧化二矾0.1份、二氧化硅0.1份、二氧化钛0.15份和硼酸0.15份；氧化铝由氧化铝粗粉和氧化铝微粉组成，氧化铝粗粉87‑88份，氧化铝微粉10份。通过氧化铝粗粉与氧化铝微粉复配使用，在高温烧结过程中，粗颗粒诱导微细颗粒晶粒发育从而促进烧结，再配合在反应体系中加入二氧化锰和二氧化钛，MnO2‑TiO2的共融物对氧化铝陶瓷有促进烧结的作用，以及，硼酸的加入使得在烧结过程中产生液相，湿润粉体颗粒，达到液相烧结的效果，促进烧结，可以大大降低烧结温度，降低能耗，从而降低了制备成本，与国外电子陶瓷相比，提高了竞争力，有利于推广。
High-aluminum black corundum ceramic material and preparation method thereof
The invention discloses a high-aluminum black corundum ceramic material, which is prepared from the following ingredients in parts by mass: 97 to 98 parts of aluminum oxide, 0.4 to 0.5 part of cobalt oxide, 1.0 to 1.9 parts of manganese dioxide, 0.1 part of magnesium oxide, 0.1 part of vanadium pentoxide, 0.1 part of silicon dioxide, 0.15 part of titanium dioxide and 0.15 part of boric acid. The aluminum oxide is composed of 87-88 parts of aluminum oxide coarse powder and 10 parts of aluminum oxide micro powder. The aluminum oxide coarse powder and the aluminum oxide micro powder are compounded for use, in the high-temperature sintering process, coarse particles induce grain development of fine particles so as to promote sintering, then manganese dioxide and titanium dioxide are added into a reaction system in a matched mode, a co-melt of MnO2-TiO2 has the effect of promoting sintering of the aluminum oxide ceramic, and the aluminum oxide ceramic has the effect of promoting sintering of the aluminum oxide ceramic. The boric acid is added, so that liquid phase and wet powder particles are generated in the sintering process, the liquid phase sintering effect is achieved, sintering is promoted, the sintering temperature can be greatly reduced, energy consumption is reduced, the preparation cost is reduced, and compared with foreign electronic ceramics, the competitiveness is improved, and popularization is facilitated.
本发明公开一种高铝黑色刚玉陶瓷材料，按照质量份计，包括有以下成分：氧化铝97‑98份、氧化钴0.4‑0.5份、二氧化锰1.0‑1.9份、氧化镁0.1份、五氧化二矾0.1份、二氧化硅0.1份、二氧化钛0.15份和硼酸0.15份；氧化铝由氧化铝粗粉和氧化铝微粉组成，氧化铝粗粉87‑88份，氧化铝微粉10份。通过氧化铝粗粉与氧化铝微粉复配使用，在高温烧结过程中，粗颗粒诱导微细颗粒晶粒发育从而促进烧结，再配合在反应体系中加入二氧化锰和二氧化钛，MnO2‑TiO2的共融物对氧化铝陶瓷有促进烧结的作用，以及，硼酸的加入使得在烧结过程中产生液相，湿润粉体颗粒，达到液相烧结的效果，促进烧结，可以大大降低烧结温度，降低能耗，从而降低了制备成本，与国外电子陶瓷相比，提高了竞争力，有利于推广。
High-aluminum black corundum ceramic material and preparation method thereof
高铝黑色刚玉陶瓷材料及其制备方法
DENG WANNENG (author) / LI QIUJUN (author) / CHEN GONGTIAN (author) / ZHANG ZHEN (author) / LIU JUNKUN (author) / LIAO HAIJUAN (author)
2024-04-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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