Инд. авторы:	Utkin A.V., Matvienko A.A., Titov A.T., Baklanova N.I.
Заглавие:	Preparation and characterization of multilayered ZrO 2 coatings on silicon carbide fibers for SiC/SiC composites
Библ. ссылка:	Utkin A.V., Matvienko A.A., Titov A.T., Baklanova N.I. Preparation and characterization of multilayered ZrO 2 coatings on silicon carbide fibers for SiC/SiC composites // Inorganic Materials. - 2011. - Vol.47. - Iss. 10. - P.1066-1071. - ISSN 0020-1685. - EISSN 1608-3172.
Внешние системы:	DOI: 10.1134/S0020168511090238; SCOPUS: 2-s2.0-80054005630;
Реферат:	eng: We have studied the surface morphology, phase composition, and oxidation resistance of multilayered tetragonal zirconia coatings produced on silicon carbide fibers by a sol-gel process and measured the tensile strength of individual fibers as a function of the number of layers in the coating. SiC-fiber-reinforced silicon carbide minicomposites have been prepared through pyrolysis of an organosilicon polymer, and their fracture surfaces have been examined. Using microindentation, we have determined the critical fiber-matrix debonding stress. The results demonstrate that the ZrO 2 coating on the fibers has the form of uniform, weakly bonded layers. The presence of a multilayered ZrO 2 interphase alters the fracture behavior of the SiC/SiC composites. The fiber debond stress in the composites markedly decreases with an increase in the number of layers in the interphase. © 2011 Pleiades Publishing, Ltd.
Издано:	2011
Физ. характеристика:	с.1066-1071