Evaluation of conductivity in W-Cu composites through the estimation of topological microstructures
- Authors
- Lee, Young Jung; Lee, Byung-Hoon; Kim, Gil-Su; Kim, Dae-Gun; Kim, Deok-Soo; Kim, Young Do
- Issue Date
- Jul-2006
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- W-Cu; W-W contiguity; conductivity; Voronoi diagram
- Citation
- MATERIALS LETTERS, v.60, no.16, pp.2000 - 2003
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 60
- Number
- 16
- Start Page
- 2000
- End Page
- 2003
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/181226
- DOI
- 10.1016/j.matlet.2005.12.113
- ISSN
- 0167-577X
- Abstract
- Conductivities of composites composed of various W-W contiguities were predicted in simulated microstructures. The relative conductivities and L-Cu ratios in the simulated microstructures were calculated using a Voronoi diagram. As the W-W contiguity increased, the conductivity underwent a two-stage change, as a result of the change in the L-Cu ratio (the ratio of the Cu length to the total length of the electron conduction path) of the total conduction path with lowest resistivity. This indicated that the W-W contiguity, which resulted from the homogeneity of sintered microstructures, affected the electrical and thermal conductivities of the W-Cu composite materials.
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