Development of a silicon carbide fibre with high tensile strength

Yajima, Seishi; Hayashi, J.; Omori, Mamoru; Okamura, Koji

doi:10.1038/261683a0

Cited by 508 publications

(194 citation statements)

References 7 publications

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“…20,40,78,[94][95][96][97][98][99][100][101][102][103][104][105][106][107][108][109] Several polymers derived from vinylsilanes, 98 disilylaryls, 110 allylsilanes and cyclocarbosilanes 111 can be used as precursors for SiC-based ceramics.…”

Section: Sicn Molecular Precursorsmentioning

confidence: 99%

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Silicon-Based Polymer-Derived Ceramics: Synthesis Properties and Applications-A Review

Riedel

Mera

Hauser

et al. 2006

J. Ceram. Soc. Japan

395

316

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Section: Sicn Molecular Precursorsmentioning

confidence: 99%

“…10. 29 Si MAS NMR of SiCO and SiBCO samples. péÉÅá~ä fëëìÉ Äó dìÉëí bÇáíçêëW lêÖ~åáÅ-íç-fåçêÖ~åáÅ`çåîÉêëáçå mêçÅÉëë Ñçê mçäóãÉê-aÉêáîÉÇ`Éê~ãáÅë polysiloxanes 230 in inert or reactive atmospheres.…”

mentioning

confidence: 99%

Silicon-Based Polymer-Derived Ceramics: Synthesis Properties and Applications-A Review

Riedel

Mera

Hauser

et al. 2006

J. Ceram. Soc. Japan

395

316

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“…In addition, lower processing temperatures than conventional sintering methods are one of industrial merit of polymer precursor routes. Since continuous SiC fibers derived from polycarbosilane PCS were developed in 1970's, 8 many kinds of polymers were developed for precursors with the consequence that SiC based fibers with excellent properties were used for industrial applications. 9,10 PCS has the advantages of stability in air and water, while many organometallic polymers are much sensitive to air and water.…”

Section: Introductionmentioning

confidence: 99%

Precipitation Processing to Synthesize Fine Polycarbosilane Particles for Precursors of Silicon Carbide Powders

Ishihara

Nishimura

Tanaka

2006

J. Ceram. Soc. Japan

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᠂‫ك‬ȹȬảḠǽ֭‫د‬ΧǷǹȚɥɲȳɳɤȿɱɻ൮ḩȡ۰༔ǨȚǮȐǽኝլɟɵɃɁ᮸‫ڤ‬ ᮪ɿ┴ቧ˴ɿᨀ˛⇠ര ᢼɿቦᄦᮾ᳣ᑿᐦࢫ305-0044 ⇹᭔ǳǞǿల˔ቆ 1-1 Liquid processing to form fine polycarbosilane nanoparticles based on the supersaturation in mixed solvents was investigated, in order to synthesize fine precursor powders for silicon carbide. Polycarbosilane solids were dissolved in n-hexane, followed by two kinds of mixing methods with ethanol. By the method of gradual mixing the polycarbosilane solution into stirred ethanol, fine precipitates were formed. On the other hand, precipitates gathered and formed a sticky lump by the method of gradual mixing ethanol into the polycarbosilane solution. The fine precipitation by the former method is attributed to the drastic reduction in solubility of the polymer in scattered droplets. The precipitates had fine primary particle size of less than 100 nm, although these particles were partially bonded. The results of FT-IR indicated that PCS can be dissolved and precipitated during the processing without change of the molecular structure. The dried precipitates were converted to amorphous Si-C -O powders by oxidative cure treatment and pyrolysis at 1000c C.

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“…This was speculated on by Niihara32but no microstructural evidence was given. Equation (8) shows also that Vg is proportional to Vp' For reasons that will become clear in the next chapter (microstructure) it seems rational to choose a large precursor loading. In view of the density results after pyrolysis ( fig.…”

Section: Weight Loss Vs Temperature: Yield and Shrinkagementioning

confidence: 99%

Interaction in polysilazane/SiC powder systems

Boiteux¹

1992

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Development of a silicon carbide fibre with high tensile strength

Cited by 508 publications

References 7 publications

Silicon-Based Polymer-Derived Ceramics: Synthesis Properties and Applications-A Review

Silicon-Based Polymer-Derived Ceramics: Synthesis Properties and Applications-A Review

Precipitation Processing to Synthesize Fine Polycarbosilane Particles for Precursors of Silicon Carbide Powders

Interaction in polysilazane/SiC powder systems

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