نتایج جستجو برای: pure copper

تعداد نتایج: 175533  

2011

To improve the material characteristics of singleand poly-crystals of pure copper, the respective relationships between crystallographic orientations and microstructures, and the bending and mechanical properties were examined. And texture distribution is also analyzed. A grain refinement procedure was performed to obtain a grained structure. Furthermore, some analytical results related to crys...

2009
F. Unalan H. Bilhan

The purpose of this study was to determine the galvanic interaction between pure titanium, a CoCrMo alloy, as well as their galvanic interaction with a high copper and a conventional amalgam at different area ratios. Pure titanium, a CoCrMo alloy and two dental amalgams with different copper compositions were tested in this study in 0.9% NaCl environment of pH 7. Polarization curves were record...

Journal: :The British journal of ophthalmology 1975
Y Yassur H Zauberman M Zidon

The reliability of aqueous analysis by the atomic absorption spectrophotometer for copper ion content in samples from eyes containing intravitreal pure copper particles was investigated. It was demonstrated that values of copper ions rose well above the normal in the aqueous as well as in the vitreous of such eyes. The standard deviations of the mean values were generally high. It was also foun...

Journal: :Strength of Materials 2021

Pure copper specimens 0.1, 0.2, and 0.3 mm thick were annealed at different temperatures. The influence of the size effect on mechanical properties fracture behavior pure was investigated in a uniaxial tensile test. elongation strength decreased with grain constant specimen thickness. If remains its thickness varies, increase can significantly affect copper. is increased reduced, tends to chang...

2016
Xiao Wang Cong Li Youjuan Ma Zongbao Shen Xianqing Sun Chaofei Sha Shuai Gao Liyin Li Huixia Liu

This paper describes a novel technique for joining similar and dissimilar metal foils, namely micro clinching with cutting by laser shock forming. A series of experiments were conducted to study the deformation behavior of single layer material, during which many important process parameters were determined. The process window of the 1060 pure aluminum foils and annealed copper foils produced b...

اکبرزاده, هادی, نجف‌وندزاده, حلیمه, هاشمی‌فر, سید جواد , کهنوجی, حمیده,

In this paper, the structural, magnetic, and electronic properties of two- to nine-atom copper and silver clusters and their alloys with one palladium atom are investigated by using full-potential all-electron density functional computations. After calculating minimized energy of several structural isomers of every nanocluster, it is argued that the small size nanoclusters (up to size of 6), ‎ ...

Journal: :The Journal of General Physiology 1954
Mostafa S. Mohamed David M. Greenberg

1. A procedure is described for isolating a copper protein from horse liver in pure form, in a state that appears to be crystalline. 2. This copper protein is colored blue-green, and its copper content varied between 0.3 and 0.4 per cent. No indication of any catalytic properties was obtained in the limited number of tests made. Because of its variable copper content, the protein may function f...

خوبرو, مرتضی, مالکی, علی, نیرومند, بهزاد,

Conventionally, alloying elements are being added to the whole melt; however, in this research in-situ surface alloying of gray cast iron was employed to improve surface properties of the castings. Wires of pure copper with diameters of 0.4 and 0.8 mm were inserted and fixed at bottom of sand molds before melting. Chemical composition analysis revealed the presence of copper from surface to a...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید