以聚锆氧烷PNZ为锆源、炔丙基酚醛PN为碳源制备了一种ZrC液相陶瓷前驱体PNZ-PN,该前驱体经1 600℃热解能够转化为高度结晶的ZrC陶瓷.通过FT-IR、DSC、TGA对前驱体的固化过程及固化样的热失重行为进行了分析;通过XRD、元素分析和SEM对热解产物的晶相组成及微观形貌进行了分析.结果表明:1 200℃以下,热解产物主要是ZrO2,1 400℃时开始发生碳热还原反应出现结晶度较小的ZrC,经1 600℃热解后可完全转化为ZrC;PN的加入量会影响热解过程中陶瓷样品的ZrO2晶相及1 600℃热解产物的碳含量,通过调整PN的加入量最终可得到自由碳含量1.66％、近似纯相的ZrC陶瓷;得到的陶瓷粒子Zr、C元素分布均匀、粒径主要分布为100 ～200 nm.
参考文献
| [1] | Han W B;Hu P;Zhang X H et al.High-temperature oxidation at 1 900℃ of ZrB2-x SiC ultrahigh-temperature ceramic composites[J].Journal of the American Ceramic Society,2008,91:3328-3334. |
| [2] | Raffaele Savino;Mario De Stefano Fumo;Laura Silvestroni .Arc-jet testing on HfB_2 and HfC-based ultra-high temperature ceramic materials[J].Journal of the European Ceramic Society,2008(9):1899-1907. |
| [3] | Karlsdottir SN;Halloran JW .Rapid oxidation characterization of ultra-high temperature ceramics[J].Journal of the American Ceramic Society,2007(10):3233-3238. |
| [4] | Savino R;De Stefano Fumo M;Paterna D et al.Arc-jet testing of ultra-high-temperature-ceramics[J].AEROSPACE SCIENCE AND TECHNOLOGY,2010,14:178-187. |
| [5] | Eakins E;Jayaseelan D D;Lee W E .Toward oxidationresistant ZrB2-SiC ultra high temperature ceramics[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,2010,42:878-887. |
| [6] | Qinggang Li;Haijun Zhou;Shaoming Dong .Fabrication of a ZrC-SiC matrix for ceramic matrix composites and its properties[J].CERAMICS INTERNATIONAL,2012(5):4379-4384. |
| [7] | Tao Cai;Wen-Feng Qiu;Dan Liu .Synthesis, Characterization, and Microstructure of Hafnium Boride-Based Composite Ceramics Via Preceramic Method[J].Journal of the American Ceramic Society,2013(6):1999-2004. |
| [8] | Lespade P;Richet N;Goursat P .Oxidation resistance of HflB2-SiC composites for protection of carbon-based materials[J].ACTA ASTRONAUTICA,2007,60:858-864. |
| [9] | Cai, T.;Qiu, W.-F.;Liu, D.;Han, W.-J.;Ye, L.;Zhao, A.-J.;Zhao, T. .Synthesis of soluble poly-yne polymers containing zirconium and silicon and corresponding conversion to nanosized ZrC/SiC composite ceramics[J].Dalton transactions: An international journal of inorganic chemistry,2013(12):4285-4290. |
| [10] | Zhaoju Yu;Le Yang;Junying Zhan .Preparation, cross-linking and ceramization of AHPCS/Cp_2ZrCl_2 hybrid precursors for SiC/ZrC/C composites[J].Journal of the European Ceramic Society,2012(6):1291-1298. |
| [11] | Gendre M;Ma(i)tre A;Trolliard G .A study of the densitication mechanisms during spark plasma sintering of zirconium (oxy-) carbide powders[J].Acta Materialia,2010,58:2598-2609. |
| [12] | Aimin Chu;Mingli Qin;Rafi-ud-din .Carbothermal synthesis of ZrC powders using a combustion synthesis precursor[J].International Journal of Refractory Metals & Hard Materials,2013(Jan.):204-210. |
| [13] | Young Sik Nam;Xue Mei Cui;Lim Jeong;Jae Yeol Lee;Won Ho Park .Fabrication and characterization of zirconium carbide (ZrC) nanofibers with thermal storage property[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2009(24):6531-6538. |
| [14] | Zhihong Ji;Li Ye;Xueyu Tao;Hao Li;Wenfeng Qiu;Tao Cai;Yanbin Jiang;Tong Zhao.Synthesis of ordered mesoporous ZrC/C nanocomposite via magnesiothermic reduction at low temperature[J].Materials Letters,2012:88-90. |
| [15] | A.A.Mahday;M.S.E.-Eskandarany .Mechanically induced solid state carburization for fabrication of nanocrystalline ZrC refractory material powders[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2000(1/2):244-253. |
| [16] | Tsuchida T.;Kodaira K.;Kawaguchi M. .SYNTHESIS OF ZRC AND ZRN IN AIR FROM MECHANICALLY ACTIVATED ZR-C POWDER MIXTURES[J].Solid state ionics,1997(1):149-154. |
| [17] | Mickael Dolle;Dominique Gosset;Christine Bogicevic .Synthesis of nanosized zirconium carbide by a sol-gel route[J].Journal of the European Ceramic Society,2007(1):2061-2067. |
| [18] | Sacks MD;Wang CA;Yang ZH;Jain A .Carbothermal reduction synthesis of nanocrystalline zirconium carbide and hafnium carbide powders using solution-derived precursors[J].Journal of Materials Science,2004(19):6057-6066. |
| [19] | Colombo Paolo .Silicon Oxycarbide Ceramic Foams from a Preceramic Polymer[J].Journal of the American Ceramic Society,1999(1/3):573-578. |
| [20] | Tao Cai;Wen-Feng Qiu;Dan Liu .Synthesis of ZrC-SiC Powders by a Preceramic Solution Route[J].Journal of the American Ceramic Society,2013(10):3023-3026. |
| [21] | Changming Xie;Mingwei Chen;Xi Wei .Synthesis and Microstructure of Zirconium Diboride Formed from Polymeric Precursor Pyrolysis[J].Journal of the American Ceramic Society,2012(3):866-869. |
| [22] | Yanli Xie;Thomas H. Sanders Jr.;Robert F. Speyer .Solution-Based Synthesis of Submicrometer ZrB_2 and ZrB_2-TaB_2[J].Journal of the American Ceramic Society,2008(5):1469-1474. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%