Black aluminum oxide ceramic capable of being sintered at low temperature and preparation method thereof: Fid-Bau Portal

Black aluminum oxide ceramic capable of being sintered at low temperature and preparation method thereof

DENG XIANGONG / SHI YIHONG / CAO RONG / LIU PING / DING YANG / RAN SONGLIN

The invention belongs to the technical field of inorganic black ceramic preparation, and particularly relates to black aluminum oxide ceramic capable of being sintered at low temperature and a preparation method of the black aluminum oxide ceramic, and the black aluminum oxide ceramic comprises the following components in percentage by mass: 20 to 90 weight percent of Al2O3, 1 to 70 weight percent of SiO2, 0 to 5 weight percent of Na2O, 0 to 4 weight percent of K2O, 3 to 10 weight percent of Cr2O3, 0 to 8 weight percent of NiO, 1.5 to 8 weight percent of CuO, 0 to 10 weight percent of TiO2, 0 to 7 weight percent of Y2O3 and 0 to 1 weight percent of La2O3. The black ceramic slurry can be obtained by reasonably controlling the proportion of the dispersing agent, the deionized water and the like and rapidly stirring, and the preparation process is simple and easy to control; in the preparation process, the ceramic powder raw material and the black pigment raw material are directly mixed together, the price is low, the requirement for equipment is low, large-scale production is easy, the cost is low, and the industrial prospect is large; the black aluminum oxide ceramic prepared by the method is low in sintering temperature, pure in black and wide in application prospect.

本发明属于无机黑色陶瓷制备技术领域，具体涉及一种可低温烧结的黑色氧化铝陶瓷及其制备方法，该黑色氧化铝陶瓷包括以下质量百分含量的组分：20～90wt％的Al2O3，1～70wt％的SiO2，0～5wt％的Na2O，0～4wt％的K2O，3～10wt％的Cr2O3，0～8wt％的NiO，1.5～8wt％的CuO，0～10wt％的TiO2，0～7wt％的Y2O3，0～1wt％的La2O3。本发明通过合理控制分散剂和去离子水等的比例，经过快速搅拌即可获得黑色陶瓷浆料，制备工艺简单、易于控制；在制备过程中，直接将陶瓷粉体原料和黑色颜料原料一起混合，价格低廉，对设备要求低，易于规模化生产，成本低，具有较大的产业化前景；用该方法制备的黑色氧化铝陶瓷烧结温度低，黑色纯正，应用前景大。

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