On the Hausner Ratio and its relationship to some properties of metal powders

The ratio between the tap density and apparent density of a powder mass is termed the Hausner Ratio. Values of this ratio, flow times and angles of repose are compared for three types of dry powder and for two types of oiled copper powder. The results indicate that the Hausner Ratio measures the fri...

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Bibliographic Details
Published in:Powder technology 1969-01, Vol.2 (6), p.323-326
Main Authors: Grey, R.O., Beddow, J.K.
Format: Article
Language:English
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Summary:The ratio between the tap density and apparent density of a powder mass is termed the Hausner Ratio. Values of this ratio, flow times and angles of repose are compared for three types of dry powder and for two types of oiled copper powder. The results indicate that the Hausner Ratio measures the friction condition in a moving powder mass. It is concluded that the Hausner Ratio is a characteristic of a powder in addition to angle of repose and flow time. Knowledge of the Hausner Ratio is of use in gaining a basic understanding of the mechanism in sieving and of the initial stage of compaction of powders.
ISSN:0032-5910
1873-328X
DOI:10.1016/0032-5910(69)80024-0