Graphene-and-Copper Artificial Nacre Fabricated by a Preform Impregnation Process:Bioinspired Strategy for Strengthening-Toughening of Metal Matrix Composite RGr0t2vol%C网 RGrO(0.3 vol%yCu 200 100 RGrO/C(BM) CNTCu得M.· Ding-Bang Xiong,Mu Cao,Qiang Guo,Zhanqiu Tan,Genlian Fan, Zhiqiang Li*,and Di Zhang* 口 State Key Laboratory of Metal Matrix Composites,Shanghai Jiao Tong University,Shanghai 200240,China ▣ ACS Nand0,2015,9(7),pp6934-6943
Graphene-and-Copper Artificial Nacre Fabricated by a Preform Impregnation Process: Bioinspired Strategy for Strengthening-Toughening of Metal Matrix Composite Ding-Bang Xiong, Mu Cao, Qiang Guo, Zhanqiu Tan, Genlian Fan, Zhiqiang Li*, and Di Zhang* State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China ACS Nano, 2015, 9 (7), pp 6934–6943 1
ACS Publications High quality High impact. (a) (d) Copper mortar fir wood ◆RGrO brick Chemical replication RGrO-and-Copper Nacre (b) (c) copper 空名安 怒8空【 GrO absorption and reduction Hot-pressing Schematic representation of fabricating RGrO-and-copper artificial nacre.(a)Ordered porous structure in natural fir wood.(b)Replicating the porous structure of fir wood with Cu.(c)Hot-pressing porous Cu preform absorbed with RGrO.(d)RGrO-and-Copper nacre consisting of RGro "brick"and copper"mortar". Published in:Ding-Bang Xiong;Mu Cao;Qiang Guo;Zhanqiu Tan;Genlian Fan;Zhiqiang Li;Di Zhang;ACS Nano 2015,9, 6934-6943. D0I:10.1021/acsnano.5b01067 Copyright 2015 American Chemical Society
Schematic representation of fabricating RGrO-and-copper artificial nacre. (a) Ordered porous structure in natural fir wood. (b) Replicating the porous structure of fir wood with Cu. (c) Hot-pressing porous Cu preform absorbed with RGrO. (d) RGrO-and-Copper nacre consisting of RGrO “brick” and copper “mortar”. Published in: Ding-Bang Xiong; Mu Cao; Qiang Guo; Zhanqiu Tan; Genlian Fan; Zhiqiang Li; Di Zhang; ACS Nano 2015, 9, 6934-6943. DOI: 10.1021/acsnano.5b01067 Copyright © 2015 American Chemical Society
(a ACS Publications High quality High impact. 5μm 200μm (b) cm 5μm 200μm (a)Layered porous structure of fir wood(the wood was carbonized for SEM observation).(b)Monolithic fir- templated porous Cu preform with a typical size of 2 x 1.5 x 1.5 cm3.High and low magnification SEM images indicate a good replication of the microstructure of fir wood. Published in:Ding-Bang Xiong;Mu Cao;Qiang Guo;Zhanqiu Tan;Genlian Fan;Zhiqiang Li;Di Zhang;ACS Nano 2015,9, 6934-6943. D01:10.1021/acsnano.5b01067 Copyright 2015 American Chemical Society
(a) Layered porous structure of fir wood (the wood was carbonized for SEM observation). (b) Monolithic firtemplated porous Cu preform with a typical size of 2 × 1.5 × 1.5 cm3. High and low magnification SEM images indicate a good replication of the microstructure of fir wood. Published in: Ding-Bang Xiong; Mu Cao; Qiang Guo; Zhanqiu Tan; Genlian Fan; Zhiqiang Li; Di Zhang; ACS Nano 2015, 9, 6934-6943. DOI: 10.1021/acsnano.5b01067 Copyright © 2015 American Chemical Society
ACS Publications High quallty High impact. Fracture surface of(a,b)pure copper,(c,d)0.3 vol RGrO-and-Cu nacre,and(e,f)1.2 vol RGrO-and-Cu nacre with low magnification in the left column and high magnification in the right column.Scale bar:(a,c,e) 30 jm;(b,d,f)3 jm.The white arrows illustrate the location of RGrO on the fracture surface,and white circles indicate typical ductile fracture area of copper"mortar". Published in:Ding-Bang Xiong;Mu Cao;Qiang Guo;Zhanqiu Tan;Genlian Fan;Zhiqiang Li;Di Zhang;ACS Nano 2015,9, 6934-6943. D0I:10.1021/acsnano.5b01067 Copyright 2015 American Chemical Society
Fracture surface of (a,b) pure copper, (c,d) 0.3 vol % RGrO-and-Cu nacre, and (e,f) 1.2 vol % RGrO-and-Cu nacre with low magnification in the left column and high magnification in the right column. Scale bar: (a,c,e) 30 μm; (b,d,f) 3 μm. The white arrows illustrate the location of RGrO on the fracture surface, and white circles indicate typical ductile fracture area of copper “mortar”. Published in: Ding-Bang Xiong; Mu Cao; Qiang Guo; Zhanqiu Tan; Genlian Fan; Zhiqiang Li; Di Zhang; ACS Nano 2015, 9, 6934-6943. DOI: 10.1021/acsnano.5b01067 Copyright © 2015 American Chemical Society
(a) 05m 05m 5些" ▣ Figure 5.TEM images of(a)unreinforced copper matrix,(b) 0.3 vol RGrO-and-Cu nacre,and (c)1.2 vol RGrO-and- Cu nacre,showing equiaxed grain in unreinforced copper matrix and lamellar structure in RGrO-and-Cu artificial nacres.5
Figure 5. TEM images of (a) unreinforced copper matrix, (b) 0.3 vol % RGrO-and-Cu nacre, and (c) 1.2 vol % RGrO-andCu nacre, showing equiaxed grain in unreinforced copper matrix and lamellar structure in RGrO-and-Cu artificial nacres. 5