97/02559 Characterizing dry triboelectro
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Article
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1997
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Elsevier Science
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## Khim. Tverd. Top/., 1996, (5) , 3-13. (In Russian) Eight coal samples from seven coal seams of the Kuznetsk Basin were studied to determine their X-ray phase. It was found that with coal rank the concentration of graphite-like phase increased with a decrease in the content of polynaphthenic com