Add time:08/21/2019         Source:sciencedirect.com

Comparative studies (nanoindentation and micro-scratch tests) of the mechanical properties of composite diamond/Silicon carbide (cas 107992-37-0) and diamond layers deposited by a microwave plasma enhanced chemical vapour deposition system with linear antennas, show that composite layers have significantly superior scratch resistivity. Chemical and structural characterization show that the composite layer consists of a mixture of large boron doped nano-crystalline diamond crystals embedded in a fine silicon carbide grain matrix. The enhanced durability of these new layers is attributed to boron incorporation and to possible improved stress redistribution and accommodation mechanics coming from the nanocomposite structure combination of silicon carbide and nano-crystalline diamond.

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