Evaluation of reaction barrier compensating coatings on SCS-6 fibers in Ti-24Al-11Nb(at%) composites
作者： Thomas D. McGarry , Marek-Jerzy Pindera , Franklin E. Wawner
DOI: 10.1016/0961-9526(95)00046-P
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摘要: Abstract The objective of the present study is to determine influence surface coatings prepared by sol-gel techniques on microstructure and residual stress distribution in SCS-6/Ti-24AI-11Nb composites. approach taken was apply two different oxide with varying thermal expansion coefficients elastic moduli SCS-6 fibers. Yttrium magnesium were chosen since each reportedly compatible titanium matrices. Layers thicknesses (approximately 0.1 μm 0.5 for magnesia 0.5μm 1.0 yttria) applied fibers comparison. then placed matrix foil vacuum hot pressed final consolidation. integrity various coatings, their stability respect fiber matrix, how they β-depleted region, effect stresses, cracking interfacial strength studied after exposure elevated temperatures periods time.
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