Shanghai Jiao Tong University

Jiangsu University

Shanghai Switchdiy Digital Technology Co., Ltd.

Sumec Wheels Co., Ltd.

Tongxiang Fan

Wei Zhang

Gang Chen

Jie Zhou

Xizhou Kai

Yutao Zhao

Yijian Lai

Binyuan Zhao

Yuesheng Ning

Yuxiang Chen

Wenling Wang

Yuanpu Peng

Provided are an anti-fatigue in-situ aluminum-based nanocomposite material for heavy-load automobile hubs and a preparation method therefor. By means of the fine adjustment of components and a forming process, in situ nano-compositing, micro-alloying and rapid compression moulding techniques are combined. That is, after the addition of Zr and B, an in-situ reaction occurs to form a nano ZrBceramic reinforcement, which is distributed in aluminum crystals and crystal boundaries and bonded to a metallurgical interface kept firm with the matrix.

Anti-fatigue in-situ aluminum-based composite material for heavy-load hubs and preparation method therefor

The present invention relates to a method for preparing graphene from a biomass-derived carbonaceous mesophase, which includes: soaking a base substance into an ethanol solution of a biomass-derived carbonaceous mesophase; after a certain period of time, taking out and drying the base substance, a layer of biomass-derived carbonaceous mesophase film being attached to the surface of the base substance; subjecting the base substance to a heat treatment under the protection of a hydrogen atmosphere, then a stacked graphene film was formed on the surface of the base substance; and further subjecting the base substance to ultrasonic dispersion in an alcohol solvent to separate the graphene film and the base substance, then a graphene alcohol was formed. The preparation process of the present invention is easy to implement. The raw material biomass-derived carbonaceous mesophase has abundant sources and is low in cost. The preparation process has low energy consumption, and is applicable to mass production. The obtained graphene film and graphene alcohol can be used in solar cells, nano-electronic devices, sensors, and so on, and have broad market prospects.

Method for preparing graphene from biomass-derived carbonaceous mesophase

Growing community of inventors

Shanghai, China

Tongxiang Fan