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The particle size distributions, morphologies, and chemical composition distributions of 14 coal fly ash (CFA) samples produced by the combustion of four western U.S. coals (two subbituminous, one lignite, and one bituminous) and three eastern U.S. coals (all bituminous) have been examined by computer-controlled scanning electron microscopy (CCSEM). The samples were obtained from a 50-kW combustor...
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