Young’s modulus and internal friction of the SiC/Si biomorphic composite based on the sapele wood precursor
| Autor: | B. K. Kardashev, T. S. Orlova, Julián Martínez-Fernández, A.R. de Arellano-López, B. I. Smirnov |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
Silicon biology Composite number Sapele technology industry and agriculture chemistry.chemical_element Modulus Young's modulus Condensed Matter Physics biology.organism_classification Electronic Optical and Magnetic Materials symbols.namesake stomatognathic system chemistry symbols Composite material Pyrolysis Elastic modulus Acoustic resonance |
| Zdroj: | Physics of the Solid State. 51:750-753 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s1063783409040179 |
| Popis: | The effect of the vibrational strain amplitude on the Young’s modulus and ultrasound absorption (internal friction) of a SiC/Si biomorphic composite prepared by pyrolysis of sapele wood followed by infiltration of silicon were investigated. The studies were conducted in air and in vacuum by the acoustic resonance method with the use of a composite vibrator in longitudinal vibrations at frequencies of about 100 kHz. Measurements performed on sapele wood-based bio-SiC/Si samples revealed a substantial effect of adsorption-desorption of molecules contained in air on the effective elasticity modulus and elastic vibration decrement. Microplastic characteristics of the SiC/Si composites prepared from wood of different tree species were compared. |
| Databáze: | OpenAIRE |
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