Results 251 to 260 of about 69,476 (301)
Some of the next articles are maybe not open access.
Impact breakage of particle agglomerates
International Journal of Mineral Processing, 2001Abstract The paper examines the various factors that influence the breakage of particle agglomerates resulting from impact. Numerical simulations of polydisperse spherical agglomerates impacting orthogonally on a target wall have been performed to study the effects of impact velocity, solid fraction, contact density, and the local arrangement of ...
B.K Mishra, C Thornton
openaire +1 more source
Statistics of multiple particle breakage
AIChE Journal, 1996AbstractA method for generating theoretical breakage distribution functions for multiple particle breakage is presented. It starts with the joint probability function that accounts for all the child particles; it is then reduced to the marginal probability function commonly used in the breakage equation. This method is flexible enough to allow the user
Priscilla J. Hill, Ka M. Ng
openaire +1 more source
Particle breakage in transitional soils
2017Oedometer tests were conducted to investigate whether particle breakage plays a significant role in the compression of transitional soils. Artificial mixtures of a carbonate sand and kaolin or a crushed quartz silt were both found to give measurable breakage within the sand fraction even at modest stresses, which is in contrast to the findings from ...
SHIPTON B. J. I +2 more
openaire +2 more sources
Particle Breakage in Agitated Dryers
AIP Conference Proceedings, 2009A method for predicting particle breakage in agitated dryers is described. The method utilizes an estimation of stresses and strains occurring in a dryer bed sheared by an impeller using the Distinct Element Method (DEM). An assemblage of particles is then subjected to these stresses in a shear cell to assess the extent of attrition under a range of ...
Colin L. Hare +5 more
openaire +1 more source
Note: Particle adhesion and imaging of particle/surface breakage zone
Review of Scientific Instruments, 2012An AFM methodology to enable measurement of the adhesion of micrometre sized objects, having contact areas in the range of nanometre to micrometer, is reported. The method also enables imaging of the actual breakage zone on both the surface and the removed object to obtain further information regarding the breakage zone.
Torbjörn, Pettersson +2 more
openaire +2 more sources
International Journal of Rock Mechanics and Mining Sciences, 2001
Abstract A numerical approach to particle breakage is applied using the Rock Failure Process Analysis code, RFPA 2D . The numerical tool is validated by simulating the Brazilian test with a two-dimensional disk sample. Then two irregularly shaped particles with an exact geometry and exact mechanical properties are numerically modelled to investigate ...
C.A. Tang +4 more
openaire +1 more source
Abstract A numerical approach to particle breakage is applied using the Rock Failure Process Analysis code, RFPA 2D . The numerical tool is validated by simulating the Brazilian test with a two-dimensional disk sample. Then two irregularly shaped particles with an exact geometry and exact mechanical properties are numerically modelled to investigate ...
C.A. Tang +4 more
openaire +1 more source
Particle breakage in glacial sediments
2017In most areas of glacial deposits, soils were deposited by ice sheet expansion or contraction, and produced by deformation and mixing of pre-existing soft sediments. The resulting soil (till) is well graded. In some cases the remixing and shearing of sediments by glaciers has caused a redistribution of particle sizes by abrasion and crushing.
Sammonds, P, Altuhafi, F, Baudet, BA
openaire +2 more sources
Mineral liberation by particle bed breakage
Minerals Engineering, 1997The prediction of mineral liberation in mineral processing operations has become of major importance in the last two decades. This is especially the case for comminution processes. Many breakage liberation models have been proposed but none has focused on a particular form of breakage.
Fandrich, R. G. +3 more
openaire +2 more sources
Rigidly-mounted roll mill as breakage tester for characterizing fine particle breakage
Powder Technology, 2021Abstract Fine grinding based on compression stresses is an important industrial process step, which is often applied in mineral, chemical and pharmaceutical industries, for example by using stirred media mills. For this stress mechanism, several studies investigate how to predict the breakage behavior depending on process and formulation conditions ...
Ann-Christin Böttcher +5 more
openaire +1 more source
Breakage probability of irregularly shaped particles
Chemical Engineering Science, 2010The investigation of breakage probability by compression of single particles was carried out. The spherical glass particles and irregularly shaped particles of NaCl, sugar, basalt and marble were subjected to a breakage test. The breakage test includes the compression up to breakage of 100 particles to obtain the distribution of the breakage ...
Sergej Aman, Jürgen Tomas, Haim Kalman
openaire +1 more source