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Flowability of electrolytic copper powder
(6th Conference of the Yugoslav Materials Research Society, YUCOMAT VI: Current Research in Advanced Materials and Processes, 2005)
The surface structure of powder particles, which allows free flow of copper powder, was examined. It has been shown that a sufficiently dense surface structure which permits free flow will be obtained if apparent density ...
The effect of reversing current on the properties of copper and electrolytic copper powder. I. The morphology of powder particles
(Trans Tech Publications Ltd, Durnten-Zurich, 2004)
The selective dissolution of copper dendrites during electrodeposition by reversing current was discussed and the effects on the morphology of copper powder particles were elucidated.
The effect of reversing current on the properties of copper and electrolytic copper powder II. The apparent density and flowability of powders
(Trans Tech Publications Ltd, Durnten-Zurich, 2004)
The apparent density and flowability of copper powder are related to the structure of powder particles and the reversing current (RC) regimes. It was shown that the apparent density of the powders increases with the increase ...
The investigation of strong active sites of dealuminated Y-type zeolite by TPD of carbon monoxide
(Springer, Dordrecht, 2003)
The active sites of hydrogen-exchanged Y zeolite (HY) and dealuminated (HDY) zeolites are investigated by TPD of carbon monoxide. Only the high temperature TPD spectra of CO (T(M)approximate to620-690degreesC) were observed, ...
DPR analysis of microstructural evolution of ZnO ceramics
(Trans Tech Publications Ltd, Durnten-Zurich, 2004)
It is well known that, due to their specific properties, ZnO - based materials are frequently used in electrotechnics and electronics. Since these properties are very Much dependent on the microstructural state of material ...
Phase transformations and thermal effects of mechanically activated BaCO3-TiO2 system
(Taylor & Francis Ltd, Abingdon, 2002)
Phase transformations and thermal effects of BaTiO3 ceramics due to influence of mechanical activation were investigated. Equimolar mixture of BaCO3 and TiO2 powders was activated in high energy vibromill for various ...
On theta-connectedness and theta-closure spaces
(Elsevier, Amsterdam, 2002)
Let (X, T) be a topological space. A point x is in the theta-closure of A, denoted by cl(theta) A, if each closed neighbourhood of x intersects A. The pair (X, cltheta) is a closure space, also called a neighbourhood space. ...
Mathematical modeling of cell distribution in alginate microbeads
(6th Conference of the Yugoslav Materials Research Society, YUCOMAT VI: Current Research in Advanced Materials and Processes, 2005)
Alginate is one of the mostly used hydrogels for cell entrapment aimed for applications in food industry, environmental engineering, pharmacy and biomedicine. One of the major parameters affecting cell viability and activity ...
Application of the master sintering curve theory to non-isothermal sintering of BaTiO3 ceramics
(6th Conference of the Yugoslav Materials Research Society, YUCOMAT VI: Current Research in Advanced Materials and Processes, 2005)
In this paper a practical approach to the analysis of sintering of BaTiO3 using the Master Sintering Curve concept has been presented. Non-isothermal sintering of high-purity non-doped BaTiO3 ceramics was monitored using ...
Kinetics of Cu2+ binding to the poly(acrylic acid) hydrogel
(Maik Nauka/Interperiodica/Springer, New York, 2007)
Isothermal kinetics of copper (ion) binding to poly(acrylic acid) (PAA) hydrogel at 20, 25, 35 and 45 C was investigated. Isothermal conversions and kinetic curves of Cu2+ binding to the PAA hydrogel were determined. It ...