公开(公告)号：US20230086290A1

公开(公告)日：2023-03-23

申请号：US17843235

申请日：2022-06-17

申请人： Wuhan Research Institute of Materials Protection

发明人： Haitao Duan ,  Yinhua Li ,  Jiesong Tu ,  Jian Li ,  Xingeng Li ,  Zhibin Fan ,  Dan Jia ,  Shengpeng Zhan ,  Tian Yang ,  Yunhu Ding ,  Lixin Ma

IPC分类号： C23C18/31 ,  C23C18/16

摘要： A graphene reinforced aluminum matrix composite with high electrical conductivity and a preparation method thereof. The method includes: obtaining aluminum coated graphene powder by plating aluminum on a graphene surface, melting aluminum block into aluminum liquid, heating a mold to be lower than an aluminum melting point, alternately pouring the aluminum liquid and the aluminum coated graphene powder into the mold for layered casting to obtain a sandwich structure; extruding the sandwich structure into a rectangular test block and then heating to 500˜600° C., performing heat preservation for a preset time and performing forging treatment, and performing longitudinal cold deformation under inert gas to obtain the graphene reinforced aluminum matrix composite. The method can solve a problem that poor wettability of graphene and aluminum matrix, the graphene is evenly dispersed in the aluminum matrix, which can improve strength of the aluminum matrix and keep its high electrical conductivity.

公开(公告)号：US11739424B2

公开(公告)日：2023-08-29

申请号：US17843235

申请日：2022-06-17

申请人： Wuhan Research Institute of Materials Protection

发明人： Haitao Duan ,  Yinhua Li ,  Jiesong Tu ,  Jian Li ,  Xingeng Li ,  Zhibin Fan ,  Dan Jia ,  Shengpeng Zhan ,  Tian Yang ,  Yunhu Ding ,  Lixin Ma

IPC分类号： C23C18/31 ,  C23C18/16

CPC分类号： C23C18/31 ,  C23C18/1639 ,  C23C18/1691 ,  C23C18/1692

摘要： A graphene reinforced aluminum matrix composite with high electrical conductivity and a preparation method thereof. The method includes: obtaining aluminum coated graphene powder by plating aluminum on a graphene surface, melting aluminum block into aluminum liquid, heating a mold to be lower than an aluminum melting point, alternately pouring the aluminum liquid and the aluminum coated graphene powder into the mold for layered casting to obtain a sandwich structure; extruding the sandwich structure into a rectangular test block and then heating to 500˜600° C., performing heat preservation for a preset time and performing forging treatment, and performing longitudinal cold deformation under inert gas to obtain the graphene reinforced aluminum matrix composite. The method can solve a problem that poor wettability of graphene and aluminum matrix, the graphene is evenly dispersed in the aluminum matrix, which can improve strength of the aluminum matrix and keep its high electrical conductivity.