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Graphene-reinforced ceramic and preparation method thereof
The invention relates to a graphene-reinforced ceramic and a preparation method thereof. The method comprises the following steps: firstly, dissolving water-based titanate into water, adding graphene powder, and carrying out ultrasonic treatment in a magnetic field to obtain a graphene dispersion liquid; carrying out distillation or vacuum distillation on the graphene dispersion liquid in an external magnetic field to obtain a graphene concentrated liquid, and carrying out drying treatment to obtain water-based titanate-modified graphene; mixing ceramic powder, a sintering aid and the water-based titanate-modified graphene, feeding to absolute ethyl alcohol and carrying out ultrasonic treatment; and carrying out ball-mill mixing on the dispersion liquid with a ball mill, drying, forming and sintering to obtain the graphene-reinforced ceramic. The graphene-reinforced ceramic provided by the invention has the functional characteristics such as ceramic semiconductor characteristics, electric conduction characteristics, heat-conduction characteristics and electrochemical characteristics; and the ceramic material can be applied to development of sensors, electromagnetic screen, electric heating elements, heat-conducting materials, energy storage electrodes and the like, and can be applied to the fields of aerospace, electrons, chemical engineering and energy sources.
Graphene-reinforced ceramic and preparation method thereof
The invention relates to a graphene-reinforced ceramic and a preparation method thereof. The method comprises the following steps: firstly, dissolving water-based titanate into water, adding graphene powder, and carrying out ultrasonic treatment in a magnetic field to obtain a graphene dispersion liquid; carrying out distillation or vacuum distillation on the graphene dispersion liquid in an external magnetic field to obtain a graphene concentrated liquid, and carrying out drying treatment to obtain water-based titanate-modified graphene; mixing ceramic powder, a sintering aid and the water-based titanate-modified graphene, feeding to absolute ethyl alcohol and carrying out ultrasonic treatment; and carrying out ball-mill mixing on the dispersion liquid with a ball mill, drying, forming and sintering to obtain the graphene-reinforced ceramic. The graphene-reinforced ceramic provided by the invention has the functional characteristics such as ceramic semiconductor characteristics, electric conduction characteristics, heat-conduction characteristics and electrochemical characteristics; and the ceramic material can be applied to development of sensors, electromagnetic screen, electric heating elements, heat-conducting materials, energy storage electrodes and the like, and can be applied to the fields of aerospace, electrons, chemical engineering and energy sources.
Graphene-reinforced ceramic and preparation method thereof
SHI JIANHUA (author) / LU JIONG (author) / MAO HUIMIN (author)
2015-09-02
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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