Strength retention in scheelite coated SiC fibers: Effect of the gas composition and pre-heat treatment

Interfacial properties of SiCf/SiC minicomposites with a scheelite coating

“…The property of the fiber can be found in the reference 23 . The detailed coating process was described in our previous work 19 , 20 . The optimized firing temperature of 900℃ and atmosphere in Ar were used to avoid the fiber strength degradation during the coating process.…”

“…Scheelite (CaWO 4 ) has a layered structure consisting of (WO 4 ) tetrahedra and eight-coordinated Ca sites and cleavage of its crystal was reported on (101) planes. The layered crystal structure and plastic deformation possibility of scheelite (CaWO 4 ) make it another potential interphase material for SiC f /SiC composites [18][19][20][21][22] . So far, the fabrication of scheelite materials as the interphase coating in SiC f /SiC composite and the investigation on its effect has not been explored.…”