Summary
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1.
To describe fully the particle-size characteristics of a powder, it is necessary to determine its particle-size distribution curve; this may be performed by the turbidimetric method of analysis.
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2.
The specific surface of a powder may be determined under industrial conditions with sufficient accuracy by the method of gas flow ratios.
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3.
For powders with particles smaller than 2–5μ, apparent density is not a reliable measure of their particle-size characteristics.
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Literature cited
N.A. Figurovskii, Sedimentometric Analysis, Moscow-Leningrad (1948).
V.M. Chegoryan, R.V. Mikhailyuk, et al., Poroshkovaya Met., No. 1 (1966).
I.S. Izrailevich and S.N. Novikov, Poroshkovaya Met., No. 5 (1966).
Collection: Hard Alloys, No. 2, All-Union Scientific Research Institute of Hard Alloys (1960), p. 167.
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Translated from Poroshkovaya Metallurgiya, No. 9(45), pp. 1–5, September, 1966.
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Panichkina, V.V., Skorokhod, V.V. Particle-size determination for fine metal powders. Powder Metall Met Ceram 5, 683–685 (1966). https://doi.org/10.1007/BF00774091
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DOI: https://doi.org/10.1007/BF00774091