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Visualization & Sizing of Soot in Engine Oils
30 May 2012This note presents a technique which looks at the light scattered from individual nanoparticles as they move under Brownian motion in the path of a laser beam. The speed at which the particles move is related to particle size, temperature and solvent viscosity. With knowledge of the temperature and solvent viscosity, particle size can be directly calculated. Here the technique is used to size soot and additive particles in engine oils following suitable sample dilution.
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Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Lubricant SootEngine Oils