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Showing 1 to 20 of 3375 for “"copper"”.
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Degradation Mechanisms of Copper and Copper Alloys
… disposal. The applications and limitations of copper alloys used for nuclear energy production are discussed. This work is compiled as a paper-based thesis addressing the central theme of degradation of copper and copper alloys. As such, it is split into four individual papers, each structured …
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Copper and Copper Alloys: Studies of Additives
Electrodeposition of copper is used extensively for the fabrication of electrical interconnects in semiconductor device manufacturing and in printed circuit board production, as well as other industries. Copper is often plated from an acidic copper sulfate electrolyte with a number of inorganic and …
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Internal Friction of Copper and Copper Alloys
Made available in DSpace on 2015-05-12T17:12:01Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0016383.PDF: 3766886 bytes, checksum: 2b0ea78198cfb1045fbb218aff1494ce (MD5) Previous issue date: 1956
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Retention of copper in copper reverberatory slags
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1942.
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Copper status in multiple trauma patients: measurement of copper balance, serum copper and ceruloplasmin
Changes in copper metabolism have been reported in both thermal injury and skeletal trauma; data regarding copper status in multiple trauma patients (MTP) are nonexistent. Hypercatabolism following multiple trauma may increase copper utilization, deplete copper stores and compromise cuproenzyme …
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Copper adsorption/desorption characteristics on copper amended soils
… Pb, and Zn added, both alone and simultaneously. Copper sorption energy was higher than both Pb or Zn, however, sorption capacity followed the order Pb > Zn > Cu. High Pb and Zn sorption was in part due to precipitation reactions especially at high initial solution concentrations. Zinc was bound …
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On the forms of copper in copper reverberatory slags.
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Metallurgy, 1945
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Giant magnetoresistance in electrodeposited nickel-copper and cobalt-copper multilayers.
… and x-ray diffractograms of both nickel-copper and cobalt-copper multilayer systems are contrasted with each other and compared to theoretical predictions, in order to determine the superlattice structure and electromagnetic properties of each. The results demonstrate that the replacement …
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Investigation of copper deposition on steel in molten copper chloride
… candidate for clean energy generation. The Copper Chloride (Cu-Cl) cycle has been chosen as an effective cycle for production of hydrogen due to its comparatively lower operating temperatures and cost. While most materials subjected to the molten Cu-Cl environment are bound to corrode, …
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Nuclear Magnetic Resonance in Single Crystals of the Dilute Magnetic Alloys: Copper - Iron, Copper - Cobalt, and Copper - Nickel
Made available in DSpace on 2015-05-12T22:39:10Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7511800.PDF: 4823827 bytes, checksum: 69cc1a616ba85c65dd501b2a3de02b6c (MD5) Previous issue date: 1974
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The genesis of cellular precipitation in copper rich copper-indium alloys
"The morphology of cellular precipitation in a Cu-9.5at.%In alloy has been investigated by light and electron microscopy and x-ray and electron diffraction. Both cellular and general precipitation were observed to occur simultaneously in quenched and aged alloys while only cellular precipitation …
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The optical properties of oxide films on copper and copper alloys
… consisting of cuprous oxide only to be grown on copper and dilute copper alloy substrates. The identity of the oxide was confirmed by x-ray diffraction and coulometry. Spectral measurements covering the wavelength range 350 - 750 nm were made using an automatic, self-nulling ellipsometer. From …
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Copper-Phytoplankton reciprocal interaction: Biogeochemical cycling of copper and its isotopes
Copper (Cu) is involved in multiple metabolic processes in phytoplankton. However, dissolved Cu (dCu) concentrations that exceed a tolerance level can be toxic. Owing to its biological relevance to marine phytoplankton, there is a need to better understand the distribution of Cu in the ocean. The …
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Copper-Phytoplankton reciprocal interaction: Biogeochemical cycling of copper and its isotopes
Copper (Cu) is involved in multiple metabolic processes in phytoplankton. However, dissolved Cu (dCu) concentrations that exceed a tolerance level can be toxic. Owing to its biological relevance to marine phytoplankton, there is a need to better understand the distribution of Cu in the ocean. The …
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Experiments on the electrodeposition of copper from dilute copper sulphate solutions
Made available in DSpace on 2017-11-30T22:46:19Z (GMT). No. of bitstreams: 2 5958662.pdf: 2049071 bytes, checksum: daf700f7f69f4730a2ec5bc4434e7600 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1897
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Solubility of carbon in molten copper-manganese and copper-nickel alloys
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Metallurgy, 1946.
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Age-hardening of a copper-cobalt and a copper-iron alloy
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Metallurgy, 1939
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Additive Manufacturing of Copper via Binder Jetting of Copper Nanoparticle Inks
… jetting Additive Manufacturing to process pure copper. In order to reduce the sintered part porosity and shape distortion during sintering, the powder bed voids were filled with smaller particles to improve the powder packing density. Through the investigation of a bimodal particle size powder …
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Application of copper isotope abundance measurements to study copper trafficking in vivo
… important metal in living systems is copper, a critical enzyme cofactor, but a potent cellular toxin when unbound inside the cell. This thesis describes the development of an analytical technique to measure isotope amount ratios in biological systems. The technique was then implemented …
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