Tensile Behavior of Sic\Sic Composites Reinforced by Treated Sylramic Sic Fibers

摘要: Near stoichiometric SiC fibers, such as Sylramic and Hi‐Nicalon Type S, display very good thermomechanical properties that are essential for high‐temperature structural ceramic matrix composites (CMC). Recently NASA has developed a treatment for the Sylramic fiber that further improves its creep‐rupture properties and environmental interactions by removing boron from the bulk and forming a thin in‐situ BN coating on the fiber surface. To understand its benefits for fiber‐controlled CMC properties, this treatment was performed on …