本文采用低分子量的聚硅烷(LPS)和二茂铁合成出聚铁碳硅烷(PFCS),后者经熔融纺丝、预氧化、烧成,可制得电阻率低至10-2Ω·cm的Si-C-Fe-O纤维.在预氧化过程中,Si-H反应程度增加的同时纤维的重量增加.研究了二茂铁对纤维电阻率和β-SiC结晶的影响:二茂铁用量的增加有利于β-SiC晶粒的增长和电阻率的降低.
参考文献
[1] | Yamamura T;Ishikawa T;Shibuya M et al.Development of a new continuous Si-Ti-C-O fiber using an organometallic polymer precursor[J].Journal of Materials Science,1988,23:2589-2594. |
[2] | Ishikawa T.;Kumagawa K.;Kohtoku Y. .Production mechanism of polyzirconocarbo-silane using zirconium(IV)acetylacetonate and its conversion of the polymer into inorganic materials[J].Journal of Materials Science,1998(1):161-166. |
[3] | Ishikawa T;Kohtoku Y;Kumagawa K et al.High-strength alkaliresistant sintered SiC fiber stable to 2200 ℃[J].Nature,1998,391:773-775. |
[4] | Feng Cao;Xiao-dong Li;Chung-xiang Feng;Jun Wang;Dong-pyo Kim .Structure evolution and associated properties on conversion from Si-C-O-Al ceramic fibers to Si-C-Al fibers by sintering[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2002(3):606-610. |
[5] | YamamuraT;Ishikawa T;Shibuya M .Electromagnetic wave absorbing material[P].US:5,094,907 |
[6] | 王军;宋永才;冯春祥 .具有微波吸收功能的掺混型碳化硅纤维的研制[J].功能材料,1997,28(06):619-621. |
[7] | Hasegawa Y;Iimura M;Yajima S.[J].Journal of Materials Science Synthesis of continuous silicon carbide fiber(Part 2):720-728. |
[8] | 余智;周锡庚;白志平 等.用透射积分法研究的穆斯堡尔谱学-一个在聚二茂铁研究中的应用[J].无机化学学报,1997,13(01):38-42. |
[9] | 王军;宋永才;冯春祥 .聚碳硅烷/纳米铁粉的热裂解[J].材料研究学报,1998,12(02):195-198. |
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