Silicon carbide ceramics reinforced SiC fibers

Fourth interdisciplinary scientific forum with international participation "New materials and promising technologies"

Frolova, M.G.^1 ; Kargin, Y.F.^1 ; Lysenkov, A.S.^1 ; Perevislov, S.N.^2 ; Titov, D.D.^1 ; Kim, K.A.^1 ; Leonov, A.V.^1 ; Istomina, E.I.^3 ; Istomin, P.V.^3 ; Tomkovich, M.V.^4

A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Russia^1

Institute of Silicate Chemistry of Russian Academy of Sciences, Saint Petersburg, Russia^2

Komi Institute of Chemistry, Syktyvkar, Russia^3

Physico-Technical Institute A.F. Ioffe Russian Academy of Sciences, Saint-Petersburg, Russia^4

关键词: Activating additives;    Physical and mechanical properties;    SiC fibers;    Silicon carbide ceramic;    Siliconizing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/525/1/012085/pdf
DOI  :  10.1088/1757-899X/525/1/012085

来源: IOP

【 摘 要 】

Ceramic materials based on silicon carbide, SiC fibers reinforced were densely obtained by hot pressed at 1850°C. SiC fibers were obtained by siliconizing. Yttrium aluminum garnet (YAG) was used as an activating additive in an amount of 8 wt.%. The highest level of physical and mechanical properties was achieved ρ = 3,19±0,01 g/cm3; δ = 571±33 MPa; K1C = 5,7±0,1 MPa•m1/2 in the material reinforced with 5 wt.% SiC fibers.