SiBN(C)陶瓷纤维因其优异的性能(高温稳定性、高温抗蠕变和高温抗氧化性能等)被认为是高温高性能陶瓷基复合材料的理想增强体.研究了SiBN(C)陶瓷纤维的热稳定性能及微观结构,探索了SiBN(C)陶瓷纤维在1 100～1 500℃的抗氧化过程,并研究了C含量对SiBN(C)陶瓷纤维介电性能的影响.结果表明:SiBN(C)陶瓷纤维在高温热处理至1 600℃的N2气氛下仍然呈现无定形结构;HT-TGA结果表明该SiBN(C)陶瓷纤维具有良好的高温热稳定性,该陶瓷纤维的热失重率(1 450℃,N2气氛)仅为1.5wt％;同时SiBN(C)纤维也表现出优良的高温抗氧化性能,SiBN(C)陶瓷纤维在1 400℃,空气中处理5h后,纤维致密且无裂纹,XRD分析表明SiBN(C)陶瓷仍然呈现无定形结构,1 500℃处理5h后,SiBN (C)陶瓷纤维开始出现皮芯结构,并且出现微晶现象;XRD、SEM和EDX等测试手段表明氧化后样品的表面主要以SiO2微晶形式存在;介电性能研究表明当C含量低至0.1wt％时,SiBN(C)陶瓷纤维的介电常数为2.1,介电损耗为0.001 7(频率为10 GHz).性能评价说明该SiBN(C)陶瓷纤维可满足高温透波材料对增强体的要求.
参考文献
| [1] | Thomas Wideman;Larry G. Sneddon.Dipentylamine-Modified Polyborazylene: A New, Melt-Spinnable Polymeric Precursor to Boron Nitride Ceramic Fibers[J].Chemistry of Materials,19961(1):3-5. |
| [2] | Berangere Toury;Philippe Miele;David Cornu;Henri Vincent;Jean Bouix.Boron Nitride Fibers Prepared from Symmetric and Asymmetric Alkylaminoborazines[J].Advanced functional materials,20023(3):228-234. |
| [3] | H.-P.Baldus;G.Passing;H.Scholz.Propeties of amorphous SiBNC-ceramic fibres[J].Key engineering materials,19971(1):177-184. |
| [4] | Hans-Peter Baldus;Martin Jansen.Novel High-Performance Ceramics-Amorphous Inorganic Networks from Molecular Precursors[J].Angewandte Chemie,19974(4):329-343. |
| [5] | 彭雨晴;韩克清;王连军;江莞;余木火.前驱体聚合物转化法制备SiBN（C）陶瓷纤维研究进展[J].中国材料进展,2012(10):1-6. |
| [6] | Tang, Y.;Wang, J.;Li, X.;Xie, Z.;Wang, H.;Li, W.;Wang, X..Polymer-derived SiBN fiber for high-temperature structural/functional applications[J].Chemistry: A European journal,201022(22):6458-6462. |
| [7] | 李仲平.防热复合材料发展与展望[J].复合材料学报,2011(02):1-9. |
| [8] | Zhi-Chang Wang;Fritz Aldinger;Ralf Riedel.Novel Silicon-Boron-Carbon-Nitrogen Materials Thermally Stable up to 2200 deg C[J].Journal of the American Ceramic Society,200110(10):2179-2183. |
| [9] | Riedel R.;Dressler W.;Ruwisch L.;Bill J.;Aldinger F.;Kienzle A..A SILICOBORON CARBONITRIDE CERAMIC STABLE TO 2,000-DEGREES-C[J].Nature,19966594(6594):796-798. |
| [10] | Bernard S;Weinmann M;Gerstel P;Miele P;Aldinger F.Boron-modified polysilazane as a novel single-source precursor for SiBCN ceramic fibers: synthesis melt-sinning, curing and ceramic conversion[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,20052(2):289-299. |
| [11] | S. Bernard;M. Weinmann;D. Cornu.Preparation of high-temperature stable Si-B-C-N fibers from tailored single source polyborosilazanes[J].Journal of the European Ceramic Society,20052/3(2/3):251-256. |
| [12] | Laura Gottardo;Samuel Bernard;Christel Gervais.Study of the intermediate pyrolysis steps and mechanism identification of polymer-derived SiBCN ceramics[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201234(34):17923-17933. |
| [13] | YuQing Peng;KeQing Han;Xi Zhao.Large-scale preparation of SiBN ceramic fibres from a single source precursor[J].CERAMICS INTERNATIONAL,20143(3):4797-4804. |
| [14] | Riham Michelle Morcos;Gabriela Mera;Alexandra Navrotsky.Enthalpy of Formation of Carbon-Rich Polymer-Derived Amorphous SiCN Ceramics[J].Journal of the American Ceramic Society,200810(10):3349-3354. |
| [15] | S. Widgeon;G. Mera;Y. Gao.Nanostructure and Energetics of Carbon-Rich SiCN Ceramics Derived from Polysilylcarbodiimides: Role of the Nanodomain Interfaces[J].Chemistry of Materials: A Publication of the American Chemistry Society,20126(6):1187-1191. |
| [16] | Amir H. Tavakoli;Jerzy A. Golczewski;Joachim Bill.Effect of boron on the thermodynamic stability of amorphous polymer-derived Si—(B—)C—N ceramics[J].Acta materialia,201211(11):4514-4522. |
| [17] | Cinibulk MK.;Hay RS.;Welch JR..PREPARATION OF THIN SECTIONS OF COATED FIBERS FOR CHARACTERIZATION BY TRANSMISSION ELECTRON MICROSCOPY[J].Journal of the American Ceramic Society,19969(9):2481-2484. |
| [18] | Hay RS.;Cinibulk MK.;Welch JR..TEM SPECIMEN PREPARATION AND CHARACTERIZATION OF CERAMIC COATINGS ON FIBER TOWS[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,19970(0):389-392. |
| [19] | Michael K.Cinibulk;Triplicane A.Parthasarathy.Characterization of Oxidized Polymer-Derived SiBCN Fibers[J].Journal of the American Ceramic Society,200110(10):2197-2202. |
| [20] | Yiguang Wang;Yongho Sohn;Yi Fan.Oxygen Diffusion Through Al-Doped Amorphous SiO_2[J].Journal of Phase Equilibria and Diffusion,20066(6):671-675. |
| [21] | Li ShuQin;Pei YuChen;Yu ChangQing.Mechanical and dielectric properties of porous Si_2N_2O-Si_3N_4 in situ composites[J].CERAMICS INTERNATIONAL,20095(5):1851-1854. |
| [22] | 艾涛;王汝敏.航天透波材料最新研究进展[J].材料导报,2004(11):12-15. |
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