caa a22 4500 463226879 CHVBK 20180405153229.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10853-006-1392-x doi (NATIONALLICENCE)springer-10.1007/s10853-006-1392-x Preparation and properties of silicon oxycarbide fibers [Elektronische Daten] [L. Chen, Z. Cai, L. Zhang, L. Lan, X. Chen, Jun Zeng] Silicon oxycarbide fibers have been prepared from vinyl trimethoxysilane (VTMS) by a modified sol-gel method and with secondary cellulose acetate (SCA) as the fiber-forming aid. Its main advantage over a normal sol-gel fiber processing is that the spinning dope remains spinnable for a long period of time. The effect of the pre-hydrolysis of VTMS on the dope spinnability is studied. At H2O/VTMS=4, the resultant sol transforms into gel very quickly, unsuitable to obtain a spinnable dope; at H2O/VTMS=2, too much un-reacted VTMS exists in the sol, making the extruded fiber difficult to solidify; at H2O/VTMS=3, a dope with good spinnability and stability, and thus high ceramic yield is obtainable. Pyrolysis at 1,000°C in argon/5% hydrogen results in silicon oxycarbide fibers with the maximum tensile strength (940.0MPa), moderate Young's modulus (63.2GPa) and high carbon content (33.2%). Springer Science+Business Media, LLC, 2007 Chen L. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut Cai Z. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut Zhang L. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut Lan L. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut Chen X. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut Zeng Jun Department of Aviation Mechanical Engineering, Air-force and Aviation University, 130022, Changchun, China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/3(2007-02-01), 1004-1009 0022-2461 42:3<1004 2007 42 10853 https://doi.org/10.1007/s10853-006-1392-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1392-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen L. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 700 1- Cai Z. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 700 1- Zhang L. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 700 1- Lan L. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 700 1- Chen X. Department of Materials Science and Engineering, Advanced Materials Laboratory, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 700 1- Zeng Jun Department of Aviation Mechanical Engineering, Air-force and Aviation University, 130022, Changchun, China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/3(2007-02-01), 1004-1009 0022-2461 42:3<1004 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 463226879 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer