Инд. авторы:	Utkin A.V., Matvienko A.A., Titov A.T., Baklanova N.I.
Заглавие:	Multiple zirconia interphase for SiC/SiCf composites
Библ. ссылка:	Utkin A.V., Matvienko A.A., Titov A.T., Baklanova N.I. Multiple zirconia interphase for SiC/SiCf composites // Surface and Coatings Technology. - 2011. - Vol.205. - Iss. 8-9. - P.2724-2729. - ISSN 0257-8972.
Внешние системы:	DOI: 10.1016/j.surfcoat.2010.10.025; SCOPUS: 2-s2.0-78650209438;
Реферат:	eng: A multiple zirconium dioxide interphase for SiC/SiCf composites was developed using the sol-gel approach. The morphology, elemental composition, topography, and tensile strength of ZrO2 coated Nicalon™ CG fibers were examined using scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS), atomic force microscopy (AFM), and single filament tensile strength analysis as a function of the number of coats. The interfacial frictional stress values of the SiC/SiCf and SiC/(ZrO2)n/SiCf minicomposites were evaluated using micro indentation tests.It was shown that the presence of multiple ZrO2 coating on Nicalon™ CG promotes decoupling of the fibers from the matrix and frictional pullout, with the fiber sliding pressure decreases as a number of coats increase. Due to strong bonding at the fiber/coating and the matrix/coating boundaries, on the one hand, and weak bonding between interfacial layers, on the other hand, debonding and sliding occur within the interphase.Thus, the fiber/matrix decoupling in SiC/(ZrO2)n/SiCf minicomposites can be regulated by designing the multiple ZrO2 interphase. © 2010 Elsevier B.V.
Ключевые слова:	Interphase; Multiple coating; Zirconia; Elemental compositions; Interfacial frictional stress; Ceramic matrix composites; Zirconium alloys; Zirconium; Zirconia; Tensile strength; Sol-gels; Silicon carbide; Matrix algebra; Friction; Debonding; Coatings; Ceramic matrix composites; Atomic spectroscopy; Atomic force microscopy; Zirconium dioxide; Weak bonding; Strength analysis; Sol-gel approach; Sliding pressure; Single filaments; SEM/EDS; Scanning electrons; Multiple coating; Minicomposites; Micro indentation; matrix; Interphase; Interfacial layer; Ceramic materials;
Издано:	2011
Физ. характеристика:	с.2724-2729