Synthesis of diamond crystals and films using an oxygen-acetylene flame under atmosheric pressure |
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Authors: | H -C Chiao H -L Lin X -T Li C -X Ding |
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Affiliation: | (1) Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China |
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Abstract: | Diamond growth with rates up to 100 to 140 μm/hr was achieved using an oxygen-acetylene combustion spraying technique in an
atmospheric environment. Investigations on the processing indicated that the gas flow ratio, substrate position, substrate
temperature, temperature distribution, and substrate pretreatment were the most important factors affecting the growth of
diamond crystals. Evaluation by means of X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and electron
probe microanalysis showed that the synthesized diamond was nearly perfect in morphology, structure, and purity. |
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Keywords: | gas flow ratio oxygen-acetylene combustion synthetic diamond wear resistant coatings diamond-like coatings |
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