By K.S. E. Forssberg
This booklet is the results of the eighth ecu convention on Comminution. Containing many major contributions about the subject of Comminution, the ebook provides the reader an important perception into the subject.
summary: This ebook is the results of the eighth eu convention on Comminution. Containing many major contributions in regards to the subject of Comminution, the e-book provides the reader an important perception into the topic
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The hydrocyclone classifier — a numerical approach. Int. J. Miner. , 17: 2 3 - 4 3 . , Rhodes, N. , 1987. A mathematical model for predicting the flow field in a hydrocyclone classifier. In: Proc. 2nd Int. Conf. Hydrocyclones, Bath, BHRA, Paper B l , pp. 2 7 - 4 0 . , 1976. A mathematical model of the hydrocyclone. , D e c : 114-123. A. , 1980. Modelling the hydrocyclone classifier. In: Proc. 28th Annu. Meet. Can. Miner. Process. CIM. Rajamani, K. , 1988. Hydrocyclone model: A fluid mechanical approach.
King/Int. J. Miner. Process. 44-45 (1996) 43-58 (ISRM) rock core-based technique (Ouchterlony, 1988; Middlemiss, 1991) to measure fracture toughness. They demonstrated that consistent and accurate measurements of the macro-toughness of rock can be made using this technique, but it is not possible to use this approach where there are limitations on the sample size or geometry of the material available (for example in samples of particulate material) or where it is desirable to make very localized measurements such as within individual mineral grains.
20 56 S. P. King/Int. J. Miner. Process. 44-45 (1996) DISTRIBUTION 0 F TOTAL CRACK LENGTH - • ι ι ι Magnetite (grain boundary region) 0 Magnetite (grain interiors) - ι — 1 1 1 1ι ι ι — ι ι—Γ" ι ι ι ι I Ave. 570 urn Ave. 746 urn Δ Specular Heametite (grain boundary regions) Ave. 362 urn y Specular Heamatite (grain interiors) Ave. 340 urn - S/ i/ λ 1° O p OÙ 43-58 Is// / Δ /δ t Mr $ - - cy ι—ι— ι 10 ' '_ i l 100 Indent Crack Length, , , , , I I 1000 I I I um Fig. 16. Indent crack-length data for each phase in polycrystalline magnetite/hematite.