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Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
September 14, 2021
Patent Application Number
20170914
Date Filed
September 14, 2017
Patent abstract
The composite structure of the present invention includes a substrate, and a structure provided on the substrate surface and having a brittle material as the principal component thereof. The structure is polycrystalline, and the average crystallite size is 100 nm or less. The substrate includes at least a first region containing the substrate surface. The first region includes a filler and a matrix which has a first resin as the principal component thereof. The diameter of 90% of the filler particles (D90) is 1.0-60 μm, inclusive. The surface area fill rate of the filler at the substrate surface per unit area is greater than 10% and no greater than 70%.
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