eprintid: 3596 rev_number: 25 eprint_status: archive userid: 306 dir: disk0/00/00/35/96 datestamp: 2019-12-12 09:42:23 lastmod: 2019-12-12 11:02:40 status_changed: 2019-12-12 11:00:27 type: article metadata_visibility: show creators_name: Tran, Van Hau creators_name: Phan, Van Trinh creators_name: Nguyen, Phuong Hoai Nam creators_name: Vu, Dinhh Lam creators_name: Phan, Ngoc Minh creators_name: Bui, Hung Thang creators_id: namnph@vnu.edu.vn creators_id: thangbh@ims.vast.vn corp_creators: Tran Van Hau corp_creators: Phan Van Trinh corp_creators: Nguyen Phuong Hoai Nam corp_creators: Vu Dinh Lam corp_creators: Phan Ngoc Minh corp_creators: Bui Hung Thang title: Enhanced hardness of nickel coating reinforced functionalized carbon nanomaterials via an electrodeposition technique ispublished: pub subjects: Phys divisions: fac_physic abstract: In this paper, the nickel (Ni) coatings reinforced carbon nanomaterials including graphene nanoplatelets (GNPs), multi-walled carbon nanotubes (MWCNTs) andMWCNTs/GNPs hybrid material prepared by the electrodeposition technique were investigated. GNPs andMWCNTswere functionalized with carboxylic (–COOH) function groups (GNPs–COOH,MWCNTs–COOH) then uniformly dispersed into Watts solution for the electrodeposition process. The obtained results revealed that the microhardness of the Ni coating reinforcedCOOHfunctionalized carbon nanomaterials is much improved compared to the bare Ni coating and Ni coating containing carbon nanomaterials without functional groups. The Ni coating containingMWCNTs–COOH/GNPs– COOHhybrid material showed the highest hardness value of 270HVthat is higher 44.7% compared to the bare Ni coating. The enhancement was attributed to the uniform dispersion of functionalized carbon nanomaterials in Ni matrix, the synergistic strengthening effect of theMWCNTsand GNPs, the grain refinement of Ni matrix and the enhanced load transfer effect from Ni matrix toMWCNTs and GNPs via atomic bonding during the electrodeposition process. date: 2019-06 date_type: published full_text_status: public publication: Mater. Res. Express refereed: TRUE citation: Tran, Van Hau and Phan, Van Trinh and Nguyen, Phuong Hoai Nam and Vu, Dinhh Lam and Phan, Ngoc Minh and Bui, Hung Thang (2019) Enhanced hardness of nickel coating reinforced functionalized carbon nanomaterials via an electrodeposition technique. Mater. Res. Express . document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3596/1/2019_Mater%20Res%20Express_Bai%20chung%20voi%20NCS.pdf