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Li D, Li Q, Yuan J, Yang Z, Jia D, Cai D, Wang S, Zhou Y, Yu D, Tian Y. Effects of high pressure on the low-temperature sintering of dense amorphous SiBCN monoliths. Ann Ital Chir 2018. [DOI: 10.1016/j.jeurceramsoc.2018.04.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Li D, Yang Z, Jia D, Duan X, Zhou Y, Yu D, Tian Y, Wang Z, Liu Y. Role of boron addition on phase composition, microstructural evolution and mechanical properties of nanocrystalline SiBCN monoliths. Ann Ital Chir 2018. [DOI: 10.1016/j.jeurceramsoc.2017.11.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Schurz F, Jansen M. Influence of methyl-modified silyl groups on the properties of polymers and Si/B/N/C ceramics derived from N-silylated borazine derivatives. Appl Organomet Chem 2012. [DOI: 10.1002/aoc.2892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fanny Schurz
- Max Planck Institute for Solid State Research; D-70569; Stuttgart; Germany
| | - Martin Jansen
- Max Planck Institute for Solid State Research; D-70569; Stuttgart; Germany
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Sehlleier YH, Verhoeven A, Jansen M. Solid-State NMR Investigations on the Amorphous Network of Precursor-Derived Si2B2N5C4Ceramics. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201200332] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Gottardo L, Bernard S, Gervais C, Inzenhofer K, Motz G, Weinmann M, Balan C, Miele P. Chemistry, structure and processability of boron-modified polysilazanes as tailored precursors of ceramic fibers. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15919h] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wilfert J, von Hagen R, Fiz R, Jansen M, Mathur S. Electrospinning of preceramic polymers for the preparation of SiBNC felts and their modification with semiconductor nanowires. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm14497a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
ABSTRACTThe first borazine/silazane backbone copolymers derived from the parent borazine, B3N3H6, have been obtained by the thermal condensation of borazine with either of two silazanes, tris(trimethylsilylamino)silane (TTS) or 1,1,3,3,5,5- hexamethylcyclotrisilazane (HCT), to yield copolymers of typical composition (B3N3H4)1.00(N)1.17(SiMe 3)1.16 (SiH)0.34 and (B3N3H4) 1.00(N) 1.67(SiMe 2)1.49(H) 1.5, respectively. Despite their similar compositions, upon pyrolysis the TTS copolymers yield B1.0N1.0Si<0.2 ceramics, while the ceramics derived from the HCT copolymers showed greater retention of silicon and carbon with typical compositions of B1.0N1.5Si0.4C0.2 The XRD spectra show the materials are amorphous to 1400 °C, but show crystalline phases of β-Si3N4, °C, with no diffraction from any boron-containing species. The DRIFT spectra of the ceramics, however, indicate the presence of boron nitride.
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Müller U, Weinmann M, Jansen M. Cl2MeSi–NH–BCl2 and ClMe2Si–NH–BCl2: novel processable single source precursors of amorphous Si/C/B/N ceramics. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b803899f] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Weinmann M, Kroschel M, Jäschke T, Nuss J, Jansen M, Kolios G, Morillo A, Tellaeche C, Nieken U. Towards continuous processes for the synthesis of precursors of amorphous Si/B/N/C ceramics. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b716144a] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jäschke T, Jansen M. Synthesis and characterization of new amorphous Si/B/N/C ceramics with increased carbon content through single-source precursors. CR CHIM 2004. [DOI: 10.1016/j.crci.2004.01.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Weinmann M, Hörz M, Berger F, Müller A, Müller K, Aldinger F. Dehydrocoupling of tris(hydridosilylethyl)boranes and cyanamide: a novel access to boron-containing polysilylcarbodiimides. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01668-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bill J, Kamphowe TW, Müller A, Wichmann T, Zern A, Jalowieki A, Mayer J, Weinmann M, Schuhmacher J, Müller K, Peng J, Seifert HJ, Aldinger F. Precursor-derived Si-(B-)C-N ceramics: thermolysis, amorphous state and crystallization. Appl Organomet Chem 2001. [DOI: 10.1002/aoc.242] [Citation(s) in RCA: 87] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Weinmann M, Nast S, Berger F, Kaiser G, Müller K, Aldinger F. Dehydrocoupling of tris(hydridosilylethyl)boranes with ammonia or amines: a novel route to Si-B-C-N preceramic polymers. Appl Organomet Chem 2001. [DOI: 10.1002/aoc.240] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Weinmann M, Kamphowe TW, Fischer P, Aldinger F. Tris(hydridosilylethyl)boranes: highly reactive synthons for polymeric silicon compounds. J Organomet Chem 1999; 592:115-27. [DOI: 10.1016/s0022-328x(99)00499-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Weinmann M, Haug R, Bill J, de Guire M, Aldinger F. Boron-modified polysilylcarbodi-imides as precursors for Si-B-C-N ceramics: Synthesis, plastic-forming and high-temperature behavior. Appl Organomet Chem 1998. [DOI: 10.1002/(sici)1099-0739(199810/11)12:10/11<725::aid-aoc777>3.0.co;2-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
A variety of techniques and measurements on all NMR accessible nuclei allow one to obtain a complete and precise set of chemical shift and quadrupole coupling parameters for both boron and nitrogen in cubic and hexagonal boron nitride. For hexagonal boron nitride, 11B to 15N cross polarization under magic angle sample spinning conditions is demonstrated at natural isotope abundance. The presented approach for NMR characterization of the crystalline boron nitrides should also be applicable to structurally related composite materials, nanotubes, and amorphous ceramics.
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Affiliation(s)
- G Jeschke
- Rheinische Friedrichs-Wilhelms-Universität Bonn, Germany
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Dutremez S, Gerbier P, Guérin C, Henner B, Merle P. Metal Alkoxide/Hexa-2,4-diyne-1,6-diol Hybrid Polymers: Synthesis and Use as Precursors to Metal Carbides and Nitrides. Adv Mater 1998; 10:465-470. [PMID: 21647979 DOI: 10.1002/(sici)1521-4095(199804)10:6<465::aid-adma465>3.0.co;2-m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- S Dutremez
- UMR 5637, Chimie Moléculaire et Organisation du Solide, Université Montpellier II, Sciences et Techniques du Languedoc, Place E. Bataillon, F-34095 Montpellier Cedex 5 (France)
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Bill J, Seitz J, Thurn G, Dürr J, Canel J, Janos BZ, Jalowiecki A, Sauter D, Schempp S, Lamparter HP, Mayer J, Aldinger F, Aldinger F. Structure Analysis and Properties of Si–C–N Ceramics Derived from Polysilazanes. ACTA ACUST UNITED AC 1998. [DOI: 10.1002/(sici)1521-396x(199803)166:1<269::aid-pssa269>3.0.co;2-7] [Citation(s) in RCA: 106] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Koyama S, Nakashima H, Sugahara Y, Kuroda K. Preparation of a Hybrid Preceramic Precursor for Al-Si-C-N Nanocomposites via a Molecular Building Block Approach. CHEM LETT 1998. [DOI: 10.1246/cl.1998.191] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Wagner O, Jansen M, Baldus HP. N(B(NMe2)2)(Si(NMe2)3)(Ti(NMe2)3), [N(Si(NMe2)3)(Ti(NMe2)2)]2 und N(SiMe3)(Si(NMe2)3)(Ti(NMe2)3) ? Synthese und Charakterisierung neuer molekularer Einkomponentenvorl�ufer f�r nitridische und carbonitridische Keramiken. Z Anorg Allg Chem 1994. [DOI: 10.1002/zaac.19946200228] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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