CERAMIC MATRIX COMPOSITE

• Main Authors: ISHIZAKI MASAHITO, MATSUKURA IZUMI, INOUE HISATO, TANAKA YASUTOMO, KUBOTA WATARU, OTSUKA YUTA
• Format: Patent
• Language: English; Japanese
• Published: 12.12.2019
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF NATURAL STONE

To provide a ceramic matrix composite excellent in mechanical properties.SOLUTION: A ceramic matrix composite includes a fiber substrate containing silicon carbide fiber bundles and a silicon carbide film formed on surfaces of each silicon carbide fiber of the silicon carbide fiber bundles. In the ceramic matrix composite, a ratio of an average film thickness Dof the silicon carbide film formed on the surfaces of the silicon carbide fibers of inner layers inside than the surface layers of the silicon carbide fiber bundles to an average film thickness Dof a silicon carbide film formed on surfaces of the silicon carbide fibers of the surface layers of the silicon carbide fiber bundles is 1.0 to 1.3.SELECTED DRAWING: None 【課題】機械的特性に優れたセラミックス基複合材料を提供することを目的とする。【解決手段】炭化ケイ素繊維束を含む繊維基材と、前記炭化ケイ素繊維束の各炭化ケイ素繊維の表面上に形成された炭化ケイ素膜とを有するセラミック基複合材料であって、前記炭化ケイ素繊維束の表層の前記炭化ケイ素繊維の表面上に形成された前記炭化ケイ素膜の平均膜厚Ｄ１に対する、前記炭化ケイ素繊維束の前記表層よりも内側の内層の前記炭化ケイ素繊維の表面上に形成された前記炭化ケイ素膜の平均膜厚Ｄ２の比が１．０〜１．３である、セラミック基複合材料。【選択図】なし