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Graphite-Copper Composite Material, Heat Sink Member Using the Same, and Method for Manufacturing Graphite-Copper Composite Material
A graphite-copper composite material that contains a copper layer and scaly graphite particles stacked via the copper layer. A volume fraction of copper is from 3 to 30%. A number of intra-particle gaps N obtained by the following (1a) to (1c) is five pieces or less in a stacked cross-sectional surface. (1a) Five measurement visual fields of 930 μm×1230 μm are defined in the stacked cross-sectional surface. (1b) The number of gaps having a width of 2 to 5 μm in the scaly graphite particles is counted in each of the five measurement visual fields, and N1 to N5 are assigned for the five measurement visual fields. (1c) An average value of the number of gaps ((N1+N2+N3+N4+N5)/5) is calculated to obtain the number of intra-particle gaps N.
Graphite-Copper Composite Material, Heat Sink Member Using the Same, and Method for Manufacturing Graphite-Copper Composite Material
A graphite-copper composite material that contains a copper layer and scaly graphite particles stacked via the copper layer. A volume fraction of copper is from 3 to 30%. A number of intra-particle gaps N obtained by the following (1a) to (1c) is five pieces or less in a stacked cross-sectional surface. (1a) Five measurement visual fields of 930 μm×1230 μm are defined in the stacked cross-sectional surface. (1b) The number of gaps having a width of 2 to 5 μm in the scaly graphite particles is counted in each of the five measurement visual fields, and N1 to N5 are assigned for the five measurement visual fields. (1c) An average value of the number of gaps ((N1+N2+N3+N4+N5)/5) is calculated to obtain the number of intra-particle gaps N.
Graphite-Copper Composite Material, Heat Sink Member Using the Same, and Method for Manufacturing Graphite-Copper Composite Material
YOSHIMURA MASAFUMI (author) / INAMORI DAI (author) / SUNAMOTO KENICHI (author)
2024-06-13
Patent
Electronic Resource
English
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