Orientation-Dependent Reinforcing Mechanisms of SiC/Carbon Nanotube Composites: A Reactive Molecular Dynamics Simulation Study.

The strength of the SiC/CNT composite is mainly dependent on the axial stretching, hence showing a decreasing trend with θ; whereas the toughness is determined by the competition between the axial stretching and crack-bridging mechanisms.

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The volcano pattern of toughness can be explained as follows: for the angles in the range of 0–45°, the enhanced crack-bridging effect overly compensates for the weakened axial stretching effect, so that the toughness results finally show an increasing trend with θ.

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