Affiliation:
1. Northwestern Polytechnical University
2. Harbin Institute of Technology
Abstract
By means of forced non-resonance under 3-point bending method, the internal frictions
of 2D-C/SiC composites are carried out from 25°C to 400°C in air. The effects of temperature,
amplitude and frequency on internal frictions have been analyzed. Results show that interface layer
plays a dominant role to internal friction. When temperature increases from 25°C to 400°C, internal
friction of 2D-C/SiC composite increases slightly, and storage modulus decreases monotonically.
With frequency increases from 1Hz to 100Hz, internal friction reduces to a minimum around 10Hz,
whereas above 50Hz it arises sharply. In amplitude scale from 0.5μm to 10μm, internal friction
increases linearly with the increase of amplitude.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Cited by
3 articles.
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