采用含高化学活性基团的乙烯基三氯硅烷(CH 2=CHSiCl3)和双(三甲基硅基)碳化二亚胺[Me3Si-N=C=N-SiMe3(BTSC)]作前驱体,在室温的氩气氛下于甲苯中进行缩合化学反应,形成稳定透明SiCN溶胶体系,溶胶经过陈化,形成三维空间结构的SiCN凝胶,最后在高温条件下裂解形成SiCN陶瓷.结果表明干凝胶在800 ℃时裂解为致密的无定型SiCN陶瓷,并在1400 ℃析晶出棒状α-Si3N4,陶瓷产率为68%(质量分数,下同).
参考文献
| [1] | Ralf Diedel;Edmin Kroke;Axel Greiner et al.[J].Chemistry of Material,1998(10):2964. |
| [2] | Ralf Riedel;Andreas O?Gabriel .[J].Advanced Materials,1999,11(03):207. |
| [3] | Ralf Diedel;Axel Greiner;Gerhard Miehe et al.[J].T Angew Chem,1997,36(06):603. |
| [4] | Riccardo Rovai;Christian W.Lehmann;John S Bradley .[J].Angewandte Chemie International Edition,1999,38(13):2036. |
| [5] | Ralf Riedel;Passing G;Schongfelder H et al.[J].Nature,1992,355:714. |
| [6] | Edwin Kroke;La-Li Li;Christoph Konetschny et al.[J].Material Science and Engineering,2000,26:97. |
| [7] | Ya-Li Li;Edwin Kroke;Ralf Riedel et al.[J].Advanced Materials,2000,12(13):956. |
| [8] | Kienzle A;Bill J;Aldinger F et al.[J].Nanostructured Materials,1995,6:349. |
| [9] | Stephan Trabl;Daniel Suttor;Gunter et al.[J].Journal of the Europea Ceramic Society,2000,20:215. |
| [10] | Bill J;Seitz J;Thuru G et al.[J].Physica Status Solidi,1998,166:269. |
| [11] | Andreas O Gabriel;Ralf Riedel;Sebastian Storck et al.[J].Applied Organo Metallic Chemistry,1997,11:833. |
| [12] | Yuji Iwamoto;Wolfgang Volger;Edwin Kroke;Ralf Riedel;Tomohiro Saitou;Katsuyuki Matsunaga .Crystallization Behavior of Amorphus Silicon Carbonitride Ceramics Derived from Organometallic Precursors[J].Journal of the American Ceramic Society,2001(10):2170-2178. |
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