石墨烯/氧化锆复合材料的分散液工艺优化及润湿性能

doi:10.12066/j.issn.1007-2861.2021

Abstract

Abstract:

The wettability of ZrO₂ ceramic was improved in the graphene/ZrO₂ ceramic composites fabricated by impregnating graphene dispersion into ZrO₂ ceramic sintered by micro wave. Firstly, the graphene dispersion was fabricated by ball milling, and the size of graphene with 200.3 nm was obtained after optimizing the process parameter of the ratio of ball, speed, time. Then, the structure of graphene was analyzed through X-ray diffraction (XRD), Raman spectrometer and transmission electron microscope (TEM), and the wettability of ceramic was also investigated. The results showed that the graphene dispersion remained steady for a long time with keeping a few layers. When adding the graphene to the ZrO₂ ceramic, the wettability of ZrO₂ ceramic was obviously improved because of its lower contact angle and higher surface energy.

Key words: ball milling, graphene, transmission electron microscope (TEM), ZrO₂ ceramic, wettability

CLC Number:

TB332

Hongrong ZOU, Lei SHI, Chenghui LIN, Yaping ZHANG, Liqi LIU. Optimization parameter of the graphene dispersion and the wettability of graphene/ZrO$_2$ ceramic composites[J]. Journal of Shanghai University（Natural Science Edition）, 2020, 26(1): 102-112.

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Optimization parameter of the graphene dispersion and the wettability of graphene/ZrO$_2$ ceramic composites

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