系统研究了含钴聚碳硅烷交联丝的氧含量对所成含钴碳化硅(Co-SiC)纤维结构与性能的影响。研究结果显示,较之交联丝Co-PCS-air, Co-PCS-O2的氧含量较高,陶瓷产率较高,所成纤维的SiCxOy相含量较高、β-SiC和CoSi晶粒的增长速度较快,晶粒的尺寸较大,达到最大力学性能的烧结温度较低,电阻率也较低。该纤维电阻率在100~103Ω?cm之间可调,且具有一定的磁性,有望用作吸波纤维。
In this work,it was systematically studied that how oxygen content of cured cobalt-containing polycar-bosilance (PCS)fibers influences the structure and properties of cobalt-containing silicon carbide(Co-SiC)fi-bers.Compared to cured Co-PCS-air fibers,Co-PCS-O2 fibers have a higher oxygen content and higher ceramic yield.For Co-PCS-O2 fibers derived from cured Co-PCS-O2 ,lower pyrolysis temperature was required to reach maximum mechanical properties.And higher SiCx Oy content,higher growing speed and final sizes ofβ-SiC and CoSi grains and lower electrical conductivity were observed.Co-PCS-O2 fibers have a electrical conductivity con-trollable between 100- 103Ω??cm and were magnetic to some degree,enabling this kind of fibers to have the po-tential to be used as wave-absorbing materials.
参考文献
| [1] | 楚增勇,冯春祥,宋永才,李效东,肖加余,王应德.先驱体转化法连续SiC纤维国内外研究与开发现状[J].无机材料学报,2002(02):193-201. |
| [2] | Feng C X;Wang Y D;Zou Z C et al.A review of appli-cations of continuous SiC fibers[J].Materials Review,1997,11(06):64-66. |
| [3] | Andersson C H;Warren R .Silicon carbide fibers and their potential for use in composite materials.Part I[J].Com-posites,1984,15(01):16-24. |
| [4] | Wang J .Preparation of SiC fibers modified with late tran-sition metals and its electromagnetic property[J].Materi-als Review,1998,12(05):60. |
| [5] | 周长江,魏红,陈朝辉.钛粉在裂解聚碳硅烷制备陶瓷材料中的应用[J].宇航材料工艺,2001(01):15-18. |
| [6] | 陈志彦,王军,李效东.磁性碳化硅功能陶瓷的制备[J].功能材料,2005(06):846-848. |
| [7] | Muhammad Zaheer;Thomas Schmalz;Gunter Motz .Polymer derived non-oxide ceramics modified with late transition metals[J].Chemical Society Reviews,2012(15):5102-5116. |
| [8] | Wang J;Song Y C;Feng C X .Preparation of a mixed sili-con carbide fiber for microwave absorbent[J].Aerospace Materials and Technology,1997,4:61-64. |
| [9] | Seyferth D;Lang H;Sobon C A et al.Chemical modifi-cation of preceramic polymers:their reactions with transi-tion metal complexes and transition metal powders[J].Journal of Inorganic and Organometallic Polymers,1992,2:59-77. |
| [10] | Xiaojun Chen;Zhiming Su;Li Zhang .Iron Nanoparticle-Containing Silicon Carbide Fibers Prepared by Pyrolysis of Fe(CO)_5-Doped Polycarbosilane Fibers[J].Journal of the American Ceramic Society,2010(1):89-95. |
| [11] | Liu A H;Chen J M;Ding S N.Processing and characterization of cobalt silicide nanoparticle-containing silicon carbide fibers through colloidal method and its un-derlying mechanism[J].Journal of Materials Chemistry C |
| [12] | Place T M;Bridges D W.Fused quartz reinforced silicacomposites[A].USA:Georgia Institute of Technology,1970 |
| [13] | 刘保荣,黄智斌,罗发,钱七虎.碳/氧化铝/二氧化硅涂层的介电和吸波性能研究[J].无机材料学报,2012(08):817-821. |
| [14] | Tan, E;Kagawa, Y;Dericioglu, AF .Electromagnetic wave absorption potential of SiC-based ceramic woven fabrics in the GHz range[J].Journal of Materials Science,2009(5):1172-1179. |
| [15] | 韩桂芳,陈照峰,张立同,成来飞,徐永东.高温透波材料研究进展[J].航空材料学报,2003(01):57-62. |
| [16] | Hasegawa Y .Synthesis of continuous silicon carbide fi-ber,part 6 pyrolysis process of cured polycarbosilane fi-ber and structure of SiC fiber[J].Journal of Materials Science,1989,24:1177-1190. |
| [17] | Shimoo T.;Hayatsu T.;Okamura K. .EFFECT OF ATMOSPHERE ON PYROLYSIS OF NICALON[J].Journal of Materials Science,1996(16):4407-4413. |
| [18] | Zhaoju Yu;Le Yang;Hao Min .Single-source-precursor synthesis of high temperature stable SiC/C/Fe nanocomposites from a processable hyperbranched polyferrocenylcarbosilane with high ceramic yield[J].Journal of Materials Chemistry, C. materials for optical and electronic devices,2014(6):1057-1067. |
| [19] | Yamamura T;Ishikawa T;Shibuya M .Electromagnetic wave absorbing material[P].US:5094907,1992. |
| [20] | Fanhao Zeng;Xiang Xiong;Baiyuan Huang .Cobalt silicide formations and magnetic properties of laser ablated Co(Cr) thin films[J].Intermetallics,2010(3):306-311. |
| [21] | Seo K;Varadwaj KSK;Mohanty P;Lee S;Jo Y;Jung MH;Kim J;Kim B .Magnetic properties of single-crystalline CoSi nanowires[J].Nano letters,2007(5):1240-1245. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%