A Sol-Gel Route to B4C
2001; Wiley; Volume: 40; Issue: 9 Linguagem: Inglês
10.1002/1521-3773(20010504)40
ISSN1521-3773
AutoresEdwin Kroke, Karl W. Völger, Alexander Klonczynski, Ralf Riedel,
Tópico(s)Organoboron and organosilicon chemistry
ResumoAngewandte Chemie International EditionVolume 40, Issue 9 p. 1698-1700 Communication A Sol–Gel Route to B4C Edwin Kroke Dr., Edwin Kroke Dr. [email protected] Technische Universität Darmstadt FB 11, FG Disperse Feststoffe Petersenstrasse 23, 64287 Darmstadt, Germany, Fax: (+49) 6151-166346Search for more papers by this authorKarl W. Völger Dipl.-Ing., Karl W. Völger Dipl.-Ing. Technische Universität Darmstadt FB 11, FG Disperse Feststoffe Petersenstrasse 23, 64287 Darmstadt, Germany, Fax: (+49) 6151-166346Search for more papers by this authorAlexander Klonczynski Dipl.-Ing., Alexander Klonczynski Dipl.-Ing. Technische Universität Darmstadt FB 11, FG Disperse Feststoffe Petersenstrasse 23, 64287 Darmstadt, Germany, Fax: (+49) 6151-166346Search for more papers by this authorRalf Riedel Prof. Dr., Ralf Riedel Prof. Dr. Technische Universität Darmstadt FB 11, FG Disperse Feststoffe Petersenstrasse 23, 64287 Darmstadt, Germany, Fax: (+49) 6151-166346Search for more papers by this author Edwin Kroke Dr., Edwin Kroke Dr. [email protected] Technische Universität Darmstadt FB 11, FG Disperse Feststoffe Petersenstrasse 23, 64287 Darmstadt, Germany, Fax: (+49) 6151-166346Search for more papers by this authorKarl W. Völger Dipl.-Ing., Karl W. Völger Dipl.-Ing. Technische Universität Darmstadt FB 11, FG Disperse Feststoffe Petersenstrasse 23, 64287 Darmstadt, Germany, Fax: (+49) 6151-166346Search for more papers by this authorAlexander Klonczynski Dipl.-Ing., Alexander Klonczynski Dipl.-Ing. Technische Universität Darmstadt FB 11, FG Disperse Feststoffe Petersenstrasse 23, 64287 Darmstadt, Germany, Fax: (+49) 6151-166346Search for more papers by this authorRalf Riedel Prof. Dr., Ralf Riedel Prof. Dr. Technische Universität Darmstadt FB 11, FG Disperse Feststoffe Petersenstrasse 23, 64287 Darmstadt, Germany, Fax: (+49) 6151-166346Search for more papers by this author First published: 03 May 2001 https://doi.org/10.1002/1521-3773(20010504)40:9 3.0.CO;2-ZCitations: 31 We are grateful for the financial support from the Deutsche Forschungsgemeinschaft (DFG, Bonn), Fonds der Chemischen Industrie (FCI, Frankfurt), and Bayer AG (Leverkusen). We thank Dr. Florence Babonneau and Dr. Christel Gervais (Université Paris) for the solid-state NMR investigations. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Graphical Abstract B-trichloroborazene reacts with bis(trimethylsilyl)carbodiimide to form non-oxide gels (see scheme). The xerogels consist of a polymeric network of borazine rings linked by carbodiimide groups. Pyrolysis at 1200°C provides amorphous ceramics with the composition BC0.23N1.1Si0.05H0.09 ≈ B4CN4. At 2000°C pure B4C is formed. References 1 1a C. J. Brinker, G. W. Scherer, Sol–Gel Science, Academic Press, San Diego, 1990; 1b Sol–Gel Science and Technology ( ), World Scientific, Singapore, 1989; 1c Chemistry, Spectroscopy and Applications of Sol–Gel Glasses ( ), Springer, Berlin, 1992; 1d Sol–Gel Technology for Thin Films, Fibers, Preforms, Electronics, and Specialty Shapes ( ), Noyes, Park Ridge, 1988; 1e R. Corriu, D. Leclerq, Angew. Chem. 1996, 108, 1524; Angew. Chem. Int. Ed. Engl. 1996, 35, 1420. 2 According to a Chemical Abstracts database search the number of papers related to sol–gel chemistry increased from 1300 in 1993 to about 2600 in 1998. 3 "Novel Sol–Gel Routes to Non-Oxide Ceramics": E. Kroke, Proc. 9th CIMTEC World Ceramics Congress, Part C (Ed.: P. Vincenzini), Techna Srl., Faenza, 1999, p. 123. 4 4a C. K. Narula, R. Schaeffer, A. Datye, R. T. Paine, Inorg. Chem. 1989, 28, 4053; 4b R. T. Paine, C. K. Narula, R. Schaeffer, A. Datye, Chem. Mater. 1989, 1, 486; 4c T. T. Borek, X. Qui, L. M. Rayfuse, A. Datye, R. T. Paine, L. F. 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Gabriel, PhD Thesis, Darmstadt University of Technology, 1998; 11b Y. Iwamoto, K. W. Völger, unpublished results. 12 12a E. Kroke, A. O. Gabriel, R. Riedel, Werkstoffwoche '98, Vol. 7, Wiley-VCH, Weinheim, 1999, p. 297; 12b R. Riedel, A. O. Gabriel, Adv. Mater. 1999, 11, 207; 12c K. W. Völger, Diploma Thesis, Darmstadt University of Technology, 1998. 13 R. Riedel, E. Kroke, A. Greiner, A. O. Gabriel, L. Ruwisch, J. Nicolich, P. Kroll, Chem. Mater. 1998, 10, 2964. 14 14a A. O. Gabriel, E. Kroke, R. Riedel, unpublished results; 14b J. S. Bradley, personal communication; 14c R. T. Paine, personal communication. 15 R. Rovai, C. W. Lehmann, J. S. Bradley, Angew. Chem. 1999, 111, 2073; Angew. Chem. Int. Ed. 1999, 38, 2036. 16 M. Kawaguchi, Adv. Mater. 1997, 9, 615. 17 R. Riedel, Adv. Mater. 1994, 6, 549. 18 Carbide, Nitride and Boride Materials Synthesis and Processing ( ), Chapman & Hall, London, 1997. 19 J. Weidlein, U. Müller, K. Dehnicke, Schwingungsspektroskopie, 2. 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