Results 221 to 230 of about 38,620 (247)
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Powder Metallurgy, 1985
Model 2 The geometrical considerations used here are, in principle, similar to those of Model 1, with respect to the contacting pairs of spheres considered in the densification process. Now, considering the two contacting spheres shown in Fig. 11 (see Appendix 1), the contact area will be increased necessary for evaluating the experimentally obtained ...
In-Hyung Moon, Jin-Sung Choi
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Model 2 The geometrical considerations used here are, in principle, similar to those of Model 1, with respect to the contacting pairs of spheres considered in the densification process. Now, considering the two contacting spheres shown in Fig. 11 (see Appendix 1), the contact area will be increased necessary for evaluating the experimentally obtained ...
In-Hyung Moon, Jin-Sung Choi
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CLADDING BY COPPER POWDER OF TITANIUM CARBIDE PARTICLES IN A PLANETARY MILL
Electrical MetallurgyThe results of a study of titanium carbide powder cladding with copper powder during processing in a planetary mill are presented, along with the results of an analysis of changes in bulk density, fractional composition, and reduced particle size.
N.V. Kobernik +3 more
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Analysis of particle rolling and intrinsic rotations in copper powder during sintering
Journal of Materials Science, 2012The common theoretical model used to describe the sintering process is the two particle model. This model describes comprehensively the growth of inter-particle contacts driven by the Laplace pressure. In three dimensions this model fails as cooperative material transport (i.e., movements of powder particles) occurs.
B. Kieback +5 more
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Effect of particle size on non-aqueous gel-casting process for copper powder
Journal of Sol-Gel Science and Technology, 2016In this article, Cu-based materials were prepared by non-aqueous gel casting. The influence of different size particles on the rheological properties in gel system and the microstructure of green bodies and sintered bodies were studied. The results show that with the increase in particle size, the apparent viscosity in gel system decreased, the ...
Yi Tang +5 more
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Influence of Superheat on Particle Shape and Size of Gas Atomised Copper Powders
Powder Metallurgy, 1991Fine powders of copper were produced in a pilot plant gas atomiser. Nitrogen gas at 1·85 MPa was used as the atomising agent in a ‘con1ined design’ nozzle which operated vertically upwards. A range of superheat in the liquid metal from 115 to 270°C was examined.
S. Özbilen, A. Ünal, T. Sheppard
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Russian Journal of Non-Ferrous Metals, 2013
Ultradispersed powders of metal copper obtained by evaporation-condensation technology are investigated. It is shown that, depending on the evaporation rate, various dispersities and degrees of agglomeration of copper powders are attained with the conservation of the weight fraction of copper in them no lower than 99.0%.
L. V. Zolotukhina +4 more
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Ultradispersed powders of metal copper obtained by evaporation-condensation technology are investigated. It is shown that, depending on the evaporation rate, various dispersities and degrees of agglomeration of copper powders are attained with the conservation of the weight fraction of copper in them no lower than 99.0%.
L. V. Zolotukhina +4 more
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Wave Motion, 1995
The dynamic compaction of ceramics, oxide superconductors, and superhard materials is an active area of research world-wide. The current knowledge about shock processes in materials is based primarily on phenomenological modeling. In order to optimize the dynamic powder compaction process, a detailed understanding of the micromechanical behavior of the
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The dynamic compaction of ceramics, oxide superconductors, and superhard materials is an active area of research world-wide. The current knowledge about shock processes in materials is based primarily on phenomenological modeling. In order to optimize the dynamic powder compaction process, a detailed understanding of the micromechanical behavior of the
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journal of Korean Powder Metallurgy Institute, 2023
Hansung Lee, Minsu Kim, Byungmin Ahn
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Hansung Lee, Minsu Kim, Byungmin Ahn
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