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Development of Si-B-O-N fibres from polyborosilazane

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Abstract

A polyborosilazane, which is a precursor of ceramic fibre, was synthesized from perhydropolysilazane and trimethyl borate. The polyborosilazane was dry-spun and then pyrolysed to produce amorphous Si-B-O-N fibre. The Si-B-O-N fibre retained its high tensile strength to higher temperatures (about 1600 °C). The fibre has a density of 2.4 g cm−3, tensile strength of 2.5 GPa and an elastic modulus of 180 GPa.

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Authors and Affiliations

  1. Corporate Research and Development Laboratory, Tonen Corporation, Ohi, 356, Saitama, Japan

    O. Funayama, H. Nakahara, A. Tezuka, T. Ishii & T. Isoda

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  1. O. Funayama
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  2. H. Nakahara
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  3. A. Tezuka
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  4. T. Ishii
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  5. T. Isoda
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Funayama, O., Nakahara, H., Tezuka, A. et al. Development of Si-B-O-N fibres from polyborosilazane. J Mater Sci 29, 2238–2244 (1994). https://doi.org/10.1007/BF01154704

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  • DOI: https://doi.org/10.1007/BF01154704

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