A simple relationship between particle shape effects and density, flow rate and Hausner Ratio

Guo, Ang; Beddow, J.; Vetter, A.F.

doi:10.1016/0032-5910(85)80009-7

Cited by 46 publications

(22 citation statements)

References 7 publications

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“…4e). Compaction of articles and the increase in their strength, associated with formation and increase in the cross section of interparticle contacts, has been described in detail in [9].…”

Section: Resultsmentioning

confidence: 98%

Effect of a rigid component (tungsten alloy) on the process of formation of mixtures based on copper powder and the properties of heterogeneous unsintered compacts

Epifantseva

Podrezov

Verbilo

et al. 2005

Powder Metall Met Ceram

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621.762We have analyzed the process of structure formation during pressing of copper-tungsten composites. We have established the effect of the amount of the rigid phase (tungsten alloy) in the mix on the pattern of structure formation and the properties (Young's modulus and bending strength) of unsintered articles made from heterogeneous powder material based on copper. We have experimentally established that despite the substantially higher porosity and high volume fraction of the rigid phase, specimens of composition Cu − 50% W alloy have higher green strength and higher modulus of elasticity. Analysis of the true stress − true strain curves of the porous cold-pressed articles compared with the results of microstructural studies allowed us to determine the effect of the structure formation pattern on the strength properties of articles made from copper-based powder material containing tungsten alloy. By studying the structural features of the porous articles, we determined the mechanism for creation of interparticle contact which determines the strength characteristics of unsintered compacts of heterogeneous composition based on a plastic matrix with different amounts of the rigid phase.

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“…4e). Compaction of articles and the increase in their strength, associated with formation and increase in the cross section of interparticle contacts, has been described in detail in [9].…”

Section: Resultsmentioning

confidence: 98%

Effect of a rigid component (tungsten alloy) on the process of formation of mixtures based on copper powder and the properties of heterogeneous unsintered compacts

Epifantseva

Podrezov

Verbilo

et al. 2005

Powder Metall Met Ceram

View full text Add to dashboard Cite

show abstract

“…These are attributed to particle size, shape, environmental conditions, cohesiveness, surface roughness, electromagnetic force, orifice diameter, wall effects and the angle of inclination, etc. [11,13]. For arc discharge synthesis, discussion of the problem associated with particle-reactor interaction is hardly to be found and possibly there is none at all.…”

Section: Current Issues In Continuous Synthesismentioning

confidence: 98%

Continuous production of carbon nanotubes – A review

Ying

Salleh

Yusoff

et al. 2011

Journal of Industrial and Engineering Chemistry

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“…The ratio between tapped and loose bulk density is known as the Hausner ratio, and it is used as an internal friction index in cohesive powders (Guo et al, 1985;Malave et al, 1985). If the blends of the conditioning agents result in the filling of interparticle void space only, then the conditioner's bulk density is given by (Hollenbach et al, 1982):…”

Section: Bulk Densitymentioning

confidence: 99%

“…So, as porosity decreases, bulk density increases (Sjollema, 1963). Guo et al (1985), correlated density, flow rate, and Hausner ratio empirically with the non-roundness of particles. It can be expressed in a simple form as:…”

Section: Bulk Densitymentioning

confidence: 99%