Analytical transform techniques to retrieve non-spherical particle size distribution

The method of preparation of Cu-Ni-Al prealloyed powders were studied in this paper. Cu, Ni, Al were smelted at 1500°C and N2 was chosen as atomizing media to produce the Cu-Ni-Al prealloyed powders. The morphology and particle size distribution of Cu-Ni-Al prealloyed powders were analysis with Scanning electron microscopy; the phase composition of Cu-Ni-Al prealloyed powders were analysis XRD. The results show that the morphology of Cu-Ni-Al prealloyed powders are almost nearly spherical, particle size distribution is very uniform and the average particle size is 39μm. The powders are composed of Cu and AlNi phase.

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Analytical inversion of the absorption spectrum to determine non-spherical particle size distribution

Journal of Quantitative Spectroscopy and Radiative Transfer ◽

10.1016/j.jqsrt.2014.08.004 ◽

2014 ◽

Vol 149 ◽

pp. 128-137 ◽

Cited By ~ 6

Author(s):

Jian-Qi Zhao ◽

Feng Zhang ◽

Jiangnan Li

Keyword(s):

Particle Size ◽

Absorption Spectrum ◽

Particle Size Distribution ◽

Size Distribution ◽

Spherical Particle

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Determination of non-spherical particle size distribution from chord length measurements. Part 2: Experimental validation

Chemical Engineering Science ◽

10.1016/j.ces.2005.04.019 ◽

2005 ◽

Vol 60 (18) ◽

pp. 4992-5003 ◽

Cited By ~ 38

Author(s):

Mingzhong Li ◽

Derek Wilkinson ◽

Kumar Patchigolla

Keyword(s):

Particle Size ◽

Particle Size Distribution ◽

Size Distribution ◽

Spherical Particle ◽

Experimental Validation ◽

Chord Length ◽

Length Measurements

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Retrieval of spherical particle size distribution with an improved Tikhonov iteration method

Thermal Science ◽

10.2298/tsci1205400t ◽

2012 ◽

Vol 16 (5) ◽

pp. 1400-1404 ◽

Cited By ~ 2

Author(s):

Hong Tang

Keyword(s):

Particle Size ◽

Particle Size Distribution ◽

Size Distribution ◽

Spherical Particle ◽

Iteration Method ◽

Initial Distribution ◽

Light Extinction ◽

Simulation Experiments ◽

The Given ◽

Independent Mode

The problem of retrieval for spherical particle size distribution in the independent mode is studied, and an improved Tikhonov iteration method is proposed. In this method, the particle size distribution is retrieved from the light extinction data through the Phillips-Twomey method firstly in the independent mode, and then the obtained inversion results of the particle size distribution is used as the initial distribution and the final retrieved particle size distribution is obtained. Simulation experiments indicate that the spherical particle size distributions obtained with the proposed method coincide fairly well with the given distributions.

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