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fibre(part 6): Pyrolysis process of cured polycarbosilane fibre and structure of SiC fibre [J]. Journal of Materials Science, 1989 (24): 1177-1190. [11] ZHENG C M, LI X D, YU Y X. Preparation of high... is an essential step in the preparation of SiC fibers and the properties of SiC fibers are affected greatly by curing conditions. TG measurement performed in air shows that mass gain starts at approximately......
resistivities were prepared by the pyrolysis of cured polycarbosilane fiber. The results show that SiC fibers with different specific resistivities can be obtained by changing the curing... and should not be neglected. Key words: silicon carbide fiber; excess carbon layer; specific resistivity 1 Introduction Polymer-derived SiC fiber is highly valued because of its excellent heat-resistance......
thermal stability than the SiC(OY) fibres. Key words: polycarbosilane; yttrium; silicon carbide; fibre 1 Introduction The pyrolysis of polycarbosilane (PCS) used for the preparation of silicon... Trans. Nonferrous Met. Soc. China 22(2012) 879-886 Fabrication of SiC fibres from yttrium-containing polycarbosilane YANG Da-xiang1, SONG Yong-cai2, YU Yu-xi3, ZHAO Xiao-feng4, XIAO Ping4 1. Science......
of the fiber when it is applied as functional materials. Since SiC fiber derived from polycarbosilane(PCS) generally has rather high specific resistance and no magnetic properties [1], the modification...-SiC and small amount of Fe3Si-like crystalline and have an average tensile strength of about 2.0 GPa. Key words: continuous Si-Fe-C-O fiber; SiC fiber; polyferrocarbosilane; ferrocene......
. The applications of porous SiC ceramic were introduced, and its research directions were predicted. Key words: SiC; porous ceramics; preparation technology; application 多孔陶瓷是一类包含大量孔隙的陶瓷材料,其发展始于20世纪70年代.通常,多孔材料不... and Technology of Advanced Materials, 2010, 11(4): 044303. [5] QIAN J M, WANG J P, JIN Z H. Preparation of biomorphic SiC ceramic by carbothermal reaction of oak wood charcoal[J]. Materials Science......
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Preparation of SiC Fiber Reinforced Nickel Matrix CompositeLu Zhang,Nanlin Shi,Jun Gong and Chao Sun Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China摘 要:SiC fiber in preparation of the precursor wires.It is shown that the deposited Ni coating......
] XIONG Chuanyin, LI Tiehu, ZHAO Tingkai, et al. Preparation of C/C-SiC composite by low temperature compression molding-liquid silicon infiltration and its application in automobile brake[J]. Ceramics...弹, 2019(6): 92-97. WANG Yang, HE Lijuan, LIU Yuanyuan, et al. Research progress in preparation technology of SiC/SiC composites [J]. Aerodynamic Missile Journal, 2019(6): 92-97. [20] KOTANI M, ZIMMER......
polycarbosilane in vacuum at 800-1200 °C. The β-SiC ceramic powders were characterized by TGA/DSC, XRD and Raman spectroscopy. The dielectric properties of β-SiC ceramic powders were investigated by measuring... to the increase in complex permittivity. Key words: silicon carbide ceramic; polycarbosilane derived SiC; dielectric properties; pyrolysis temperature; free carbon; complex permittivity 1 Introduction The needs......