Results 211 to 220 of about 38,620 (247)

The Effect of Reversing Current on the Properties of Copper and Electrolytic Copper Powder. I. The Morphology of Powder Particles

Materials Science Forum, 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.
M G Pavlovic, K I Popov
exaly   +3 more sources

In vitro studies of copper release from powder particles in synthetic biological media

Environmental Pollution, 2007
The aim of this paper is to provide quantitative data on copper release from powder particles of different copper materials, including artificial copper patina, Cu(2)O and metallic Cu, when exposed to different synthetic biological media to simulate an inhalation scenario and/or skin contact.
Klara Midander, Inger Odnevall Wallinder, C Leygraf   +2 more
exaly   +3 more sources

Particle size distribution of copper powder

Soviet Powder Metallurgy and Metal Ceramics, 1972
1. It is demonstrated that the primary particle radius distribution of PM-1 electrolytic copper powder is an exponential one. The particle size distribution of electrolytic copper powders can conveniently be characterized by means of a distribution function of the typef (r)=a exp [−a(r−b)], wherea and b are experimentally determined constants.
V. I. Kurinnoi, T. A. Komarova, N. A. Figurovskii, E. N. Semenova   +3 more
openaire   +1 more source

Thermal Transport in the Copper Powders with Nanometer and Micrometer Particles

Advanced Materials Research, 2010
This paper investigates effects of particle size on heat transfer in copper powders. The understanding for thermal properties of the powder is advantageous to the advancement of the processing technologies such as laser cladding, laser sintering, powder metallurgy and its other applications.
Ching Yen Ho, Yu Hsiang Tsai, Feng Ming Sui   +2 more
openaire   +1 more source

Microwave Heating of Pure Copper Powder with Varying Particle Size and Porosity

Journal of Microwave Power and Electromagnetic Energy, 2008
In recent years, microwave processing of metal/alloy powders have gained considerable potential in the field of material synthesis. Microwave heating is recognized for its various advantages such as: time and energy saving, rapid heating rates, considerably reduced processing cycle time and temperature, fine microstructures and improved mechanical ...
Avijit, Mondal, Dinesh, Agrawal, Anish, Upadhyaya   +2 more
openaire   +2 more sources

The Effect of Time of Powder Removal on Powder Particle Size and Shape Copper Powder Produced by Electrolysis Method

Materials Science Forum, 2011
In this study, electrolyze unit, which is used for the production of metal powders, was designed and produced. The production of powder was carried out by using different parameter times of powder removal (5, 10, 20, 30 and 40 min.). The effect of time of powder removal on powder particle size and shape was examined.
KURT, ADEM, BOZ, MUSTAFA
openaire   +2 more sources

The Structure and Properties of Powder Copper Hardened by Fine Tungsten Particles

Powder Metallurgy and Metal Ceramics, 2014
The Cu–W pseudoalloys with 2–10 vol.% of nanosized tungsten particles (30–40 nm) are studied. The bulk samples with relative density up to 99.1–99.6% are produced by shock compaction. The introduction of nanosized tungsten particles increases the pseudoalloy strength to 2.7HCu with insignificant reduction in plasticity (δ = 13%) and conductivity (to δ =
P. Ya. Radchenko, O. I. Get’man, V. V. Panichkina, V. V. Skorokhod, Yu. N. Podrezov, D. G. Verbilo, A. V. Laptev, A. I. Tolochin   +7 more
openaire   +1 more source

Effects of copper micro-particles on the detonation characteristics of RDX powder

Journal of Physics D: Applied Physics, 2009
The effects of copper micro-particles on the detonation characteristics of RDX powder were investigated in a horizontal shock tube with internal dimensions of 100 mm diameter and 4 m length using an instantaneous spectrum detection apparatus. The emergence time and emission spectral intensity of the main products such as NO2, H, C2, O, CO, CH2O, CO2 ...
Mi-An Xue, Xiaoli Yuan, Xiaoying Fu, Jinghe Wu, Pengzhi Lin, Dong Hu, Song Ye, Wenjun Zhu, Yanping Wang, Zhongwei Huang   +9 more
openaire   +1 more source

Facile Synthesis of Flake Copper Powder Loaded With Silver Particles

Applied Mechanics and Materials, 2011
A fast and facile wet chemistry method has been developed for preparing monodispersed silver coated copper composite particles. Copper powder is coated using a solution containing [Ag (NH3)] +. The effect of the copper particle size distribution, the concentrations of [Ag (NH3)] + on composite particles conductivity were investigated.
Xiao Feng Tian, Wei Ke Zhang
openaire   +1 more source

Copper-matrix molybdenum particle composites made from copper coated molybdenum powder

Journal of Electronic Materials, 1995
Copper-matrix molybdenum particle composites containing 33 ~73 wt.% Mo were fabricated by hot pressing copper coated molybdenum powder. For comparison, corresponding composites fabricated by hot pressing a mixture of copper and molybdenum powders were also made.
Pay Yih, D. D. L. Chung
openaire   +1 more source