Transcription of Chapter 1. Particle Size Analysis - CHERIC
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Chapter 1. Particle size IntroductionParticle size / Particle size distribution: a key role in determining the bulk properties of the size ranges of particles (x)- Coarse particles : >10 m- Fine particles : 1 m- Ultrafine(nano) particles : < m (100nm) Describing the size of a Single ParticleDescription of regular-shaped particles : Table diameters- Martin's diameter- Feret diameter- Shear diameterEquivalent (sphere) diametersFigure Equivalent volume (sphere) diameters:the diameter of the hypothetical sphere having the same volumexv=(6V )1/3- Equivalent surface diameter:the diameter of the hypothetical sphere having the same surface areaxs=(S )1/2- Surface-volume diameter: the diameter of the hypothetical sphere having the same surface-to- volume ratio xsv=6VS"Which diameter we use depends on the end use of the information.
Particle size/particle size distribution: a key role in determining the bulk ... size reduction process) to spheres with a diameter of 1nm, calculate the increase in surface area of the smaller sized spheres. Energy Levels in Semiconductor and Metal Particles
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