国家/地区 中国（3）
IPC部 C（3）
IPC大类 C22（3）
IPC小类 C22C（3）
IPC C22C001/05（3）
发明人 CAO H（3）
公开年 2022（2）
申请年 2021（2） 
专利权人 ZHEJIANG CHI.（3） SHANGHAI XIN.（2）

Preparing copper rare earth graphene electrical contact material comprises e.g. mixing copper rare earth alloy powder and silicon powder to obtain mixed powder, carrying out chemical vapor deposition, separating silicon powder in mixed powder, sintering, extruding and drawing preform.

CAO H, MA Y

Preparing metal-based graphene composite material, comprises mixing graphene slurry and metal powder to form mixed slurry, and forming mixed slurry into metal-based graphene composite material by chemical vapor deposition in oxygen-free environment.

QIAN T, CAO H, SHEN H, LV X, MA Y

Method for preparing graphene-reinforced copper chromium electric contact material, involves cold pressing second mixed powder and sintered to obtain preform, and re-pressing and re-firing preform to obtain electrical contact material.

LV X, SHEN H, QIAN T, CAO H, MA Y