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Graphene-ceramic composite material, and preparation method and application thereof
The invention provides a graphene-ceramic composite material, and a preparation method and application thereof. The preparation method comprises the following steps: providing a heat dissipation ceramic substrate; and introducing a carbon source, and carrying out plasma chemical vapor deposition reaction on the heat dissipation ceramic substrate to grow a graphene layer, wherein the graphene layer is in vertical orientation. In a plasma chemical vapor deposition system, the gaseous carbon source is introduced under the action of plasma, so that the barrier that energy required by precursor cracking can be provided only through high temperature on the surface of a ceramic substrate without catalytic capability can be overcome, and graphene is grown on the heat dissipation ceramic substrate, therefore, the graphene-ceramic composite material with good thermal conductivity and heat dissipation capability is obtained. The prepared graphene has a unique three-dimensional structure, and heat transfer in the horizontal direction and the vertical direction is facilitated. According to the preparation method, the three-dimensional graphene can directly, quickly and uniformly grow on the ceramic substrate, a transfer process is not needed, and the conditions of sample pollution, wrinkles and the like are avoided.
本发明提供一种石墨烯‑陶瓷复合材料及其制备方法和应用，制备方法包括：提供一散热陶瓷基底；通入碳源，并在散热陶瓷基底上进行等离子体化学气相沉积反应生长石墨烯层；其中，石墨烯层为垂直取向。在等离子体化学气相沉积体系中，通过等离子体作用下引入气态碳源，可克服在无催化能力的陶瓷基底表面，仅能通过高温来提供前驱体裂解所需能量的壁垒，实现散热陶瓷基底上生长石墨烯，以获得同时具有良好的热导能力和散热能力的石墨烯‑陶瓷复合材料。所制备的石墨烯具有独特的三维结构，有助于水平和垂直两个方向上热量的传递。本发明的制备方法可实现三维石墨烯在陶瓷基底上直接快速均匀生长，无需转移工艺，避免了样品污染及褶皱等情况。
Graphene-ceramic composite material, and preparation method and application thereof
The invention provides a graphene-ceramic composite material, and a preparation method and application thereof. The preparation method comprises the following steps: providing a heat dissipation ceramic substrate; and introducing a carbon source, and carrying out plasma chemical vapor deposition reaction on the heat dissipation ceramic substrate to grow a graphene layer, wherein the graphene layer is in vertical orientation. In a plasma chemical vapor deposition system, the gaseous carbon source is introduced under the action of plasma, so that the barrier that energy required by precursor cracking can be provided only through high temperature on the surface of a ceramic substrate without catalytic capability can be overcome, and graphene is grown on the heat dissipation ceramic substrate, therefore, the graphene-ceramic composite material with good thermal conductivity and heat dissipation capability is obtained. The prepared graphene has a unique three-dimensional structure, and heat transfer in the horizontal direction and the vertical direction is facilitated. According to the preparation method, the three-dimensional graphene can directly, quickly and uniformly grow on the ceramic substrate, a transfer process is not needed, and the conditions of sample pollution, wrinkles and the like are avoided.
本发明提供一种石墨烯‑陶瓷复合材料及其制备方法和应用，制备方法包括：提供一散热陶瓷基底；通入碳源，并在散热陶瓷基底上进行等离子体化学气相沉积反应生长石墨烯层；其中，石墨烯层为垂直取向。在等离子体化学气相沉积体系中，通过等离子体作用下引入气态碳源，可克服在无催化能力的陶瓷基底表面，仅能通过高温来提供前驱体裂解所需能量的壁垒，实现散热陶瓷基底上生长石墨烯，以获得同时具有良好的热导能力和散热能力的石墨烯‑陶瓷复合材料。所制备的石墨烯具有独特的三维结构，有助于水平和垂直两个方向上热量的传递。本发明的制备方法可实现三维石墨烯在陶瓷基底上直接快速均匀生长，无需转移工艺，避免了样品污染及褶皱等情况。
Graphene-ceramic composite material, and preparation method and application thereof
一种石墨烯-陶瓷复合材料及其制备方法和应用
LIU ZHONGFAN (author) / SHAN JUNJIE (author) / ZHANG YANFENG (author)
2021-10-01
Patent
Electronic Resource
Chinese
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