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Materials Science-Poland
Édition 40 (2022): Edition 1 (March 2022)
Accès libre
The microstructures of in-situ synthesized TiC by Ti-CNTs reaction in Cu melts
Xuexia Xu
Xuexia Xu
,
Yong Wang
Yong Wang
,
Qing Wang
Qing Wang
,
Guozhen Dong
Guozhen Dong
,
Wenbin Li
Wenbin Li
,
Guowei Li
Guowei Li
,
YaDong Lv
YaDong Lv
,
Jin Zhang
Jin Zhang
et
Haimin Ding
Haimin Ding
| 13 juil. 2022
Materials Science-Poland
Édition 40 (2022): Edition 1 (March 2022)
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Publié en ligne:
13 juil. 2022
Pages:
145 - 158
Reçu:
10 janv. 2022
Accepté:
19 mai 2022
DOI:
https://doi.org/10.2478/msp-2022-0018
Mots clés
Cu matrix composites
,
microstructures
,
TiC
,
CNTs
© 2022 Xuexia Xu et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Fig. 1
The microstructures of the used CNTs (a) Low magnification microstructure; (b) High magnification microstructure. CNTs, carbon nanotubes
Fig. 2
Microstructures of the as-cast Cu-4Ti-1CNTs sample (a, b) Microstructures; (c, d) EDS analysis results of points 1 and 2 shown in (b). CNTs, carbon nanotubes; EDS, energy dispersion spectroscopy
Fig. 3
EDS analysis of the as-cast Cu-4Ti-1C sample (a) SEM image; (b–d) mapping micrographs for the elements C, Cu, and Ti. EDS, energy dispersion spectroscopy; SEM, scanning electron microscopy
Fig. 4
The XRD results of the powders extracted from (a) Cu-4Ti-1C; (b) Cu-6.67Ti-1C; (c) Cu-4Ti-1C-1Si. XRD, X-ray diffraction analysis
Fig. 5
Microstructures of the electrolytic etching Cu-4Ti-1C sample (a) Low magnification microstructure; (b–d) High magnification microstructures of the TiC agglomerations
Fig. 6
The morphologies of TiC extracted from the Cu-4Ti-1C sample (a, b) The formed TiC shells; (c, d) The agglomerations of TiC; Insert figure in (d): Unreacted CNTs
Fig. 7
The agglomerations of TiC in Cu-4Ti-1C (a) The synthesized TiC agglomeration with the surface morphology similar to that of the CNTs agglomeration; (b) The formed TiC with a certain aspect ratio. CNTs, carbon nanotubes
Fig. 8
Microstructures of the Cu-6.67Ti-1C sample (a, b) as-cast sample; (c, d) electrolytic etching sample
Fig. 9
EDS analysis of the as-cast Cu-6.67Ti-1C sample (a) SEM image; (b–d) mapping micrographs for the elements C, Cu, and Ti. EDS, energy dispersion spectroscopy; SEM, scanning electron microscopy
Fig. 10
Microstructures of the Cu-4Ti-1C-1Si sample (a, b) as-cast sample; (c, d) electrolytic etching sample
Fig. 11
EDS analysis of the as-cast Cu-4Ti-1C-1Si sample (a) SEM image; (b–e) mapping micrographs for the elements C, Si, Ti, and Cu. (f) EDS point analysis result of point 3 in (a). EDS, energy dispersion spectroscopy; SEM, scanning electron microscopy
Fig. 12
EDS analysis of the electrolytic etching Cu-4Ti-1C-1Si sample (a) SEM image; (b) EDS point analysis result of point 4 in (a). EDS, energy dispersion spectroscopy; SEM, scanning electron microscopy
Fig. 13
The volume fraction of TiC in the different composites
Fig. 14
TiC size distribution statistics (a) Cu-4Ti-1C; (b) Cu-6.67Ti-1C; (c) Cu-4Ti-1C-1Si
Fig. 15
The properties of the as-cast composites (a) Hardness of the composites; (b) Hardness of Cu matrix; (c) Electrical conductivity
Fig. 16
The EDS point analysis result of Cu matrix in the as-cast composites (a) Cu-4Ti-1C; (b) Cu-6.67Ti-1C; (c) Cu-4Ti-1C-1Si. EDS, energy dispersion spectroscopy
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