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Preparation and tribological properties of multi-layer graphene-silicon dioxide composites-based solid lubricant coatings at elevated temperatures

https://commons.wikimedia.org/wiki/File:Preparation_and_tribological_properties_of_multi-layer_graphene-silicon_dioxide_composites-based_solid_lubricant_coatings_at_elevated_temperatures.pdf

powders and the elemental distribution of the powders were analysed by the Gemini SEM 300 equipped with an energy-dispersive X-ray spectrometer (EDS). Atomic

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Proceedings (IA proceedings17roya)

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copyright status in the source country. Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia

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The mystic dream book of Stephen Girard (IA mysticdreambooko00walt)

https://commons.wikimedia.org/wiki/File:The_mystic_dream_book_of_Stephen_Girard_(IA_mysticdreambooko00walt).pdf

copyright status in the source country. Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia