TIMREX® Graphites and Cokes for Friction Materials - Timcal
TIMREX® Graphites and Cokes for Friction Materials - Timcal
TIMREX® Graphites and Cokes for Friction Materials - Timcal
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GraphiteProperties:Density <strong>and</strong> internalporosityGraphiteProperties:Damping behaviourMeasuring methodThe density of carbon particles is usuallymeasured pycnometrically by the xylenemethod.ConclusionGraphite has a theoretical density of 2.26g/cm 3 , <strong>and</strong> calcined petroleum coke about2.05 g/cm 3 whereas tap densities are relativelylow there<strong>for</strong>e high volume concentrationscan be achieved using graphite <strong>and</strong>coke even in relatively low quantities.With TIMREX ® Graphite powders, theoreticaldensity - excluding internal closedpores - is achieved in the fine powders.As particle size increases, particle densitydrops - an effect of internal closed porosity.Micro- <strong>and</strong> mesopores in the range of
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