6533b859fe1ef96bd12b6e7b
RESEARCH PRODUCT
Correlation between milling parameters and microstructure characteristics of nanocrystalline copper powder prepared via a high energy planetary ball mill
Frédéric BernardA.i. UstinovEric GaffetO. Boytsovsubject
Materials science02 engineering and technologyEdge (geometry)01 natural sciencesHigh Energy Physics::TheoryCondensed Matter::Materials ScienceCondensed Matter::SuperconductivityPowder metallurgy0103 physical sciencesMaterials ChemistryBall millComputingMilieux_MISCELLANEOUS010302 applied physicsMechanical EngineeringMetallurgyMetals and Alloys[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnologyMicrostructureNanocrystalline materialShock (mechanics)Mechanics of Materials[ CHIM.MATE ] Chemical Sciences/Material chemistryCrystalliteDislocation0210 nano-technologydescription
The microstructure evolution of Cu-nanostructured powders versus the ball milling conditions was investigated by whole peak profile powder pattern modeling method. This method allows defining in some approach the characteristics of as-milled Cu powder microstructure in terms of crystallite size, type and density of dislocations and twin faults density. It is shown that the change of microstructure characteristics of as-milled Cu powder versus the ball milling conditions (under constant time of the ball milling) depend on only some energy parameters of the milling, for example, average size of crystallite is uniquely defined by energy of the shock, whereas the portion of edge and screw components of dislocation structures depend on a ratio between normal and tangential components of shock.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-04-01 | Journal of Alloys and Compounds |