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US 10,883,170 B2Granted
Carbon material having coating layer comprising tac, and method for producing said carbon material
AssigneeTokai Carbon Korea Co., Ltd
InventorDong Wan Jo
Life of this patent
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Abstract
The present invention relates to carbon material having, on the base material, a coating layer that includes tantalum carbide (TaC), and a method for producing the carbon material. For example, the carbon material may include a base material and a coating layer on the surface of the base material. The coating layer may include TaC having average crystal grain size of 10-50 μm.
Claims15
A carbon material having a coating layer including tantalum carbide (TaC), the carbon material comprising:
- a carbon base material;
- and
- the coating layer including TaC formed on a surface of the carbon base material and having an average grain size of 10 micrometers (μm) to 50 μm, and
- wherein a ratio of a diffraction peak value of a (200) plane of the coating layer including TaC to a diffraction peak value of a (111) plane of the coating layer including TaC does not exceed a ratio threshold value of 0.40,
- wherein diffraction peak values are generated by X-ray diffraction (XRD) in an XRD analysis, and
- wherein the diffraction peak value of the (111) plane of the coating layer including TaC is a maximum XRD peak value generated by XRD in the XRD analysis.
3 more elements
A method of manufacturing a carbon material having a coating layer including tantalum carbide (TaC), the method comprising:
- preparing a carbon base material;
- forming the coating layer including TaC on the carbon base material through chemical vapor deposition (CVD) at a temperature of 1500° C. or higher such that the coating layer has a ratio of a diffraction peak value of a (200) plane to a diffraction peak value of a (111) plane not exceeding a ratio threshold value of 0.40.
Dependencies are inferred from the claim text.