The Production and Utilization of Thorium and Uranium

Marden, J. W.

doi:10.1149/1.3498115

Cited by 9 publications

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“…It is a well-known fact that the first large supply of uranium of sufficient purity to be used in nuclear reactors was made by a process developed by J. W. Marden and his associates at the Westinghouse Lamp Works, Bloomfield, New Jersey, namely the electrolysis of a solution of KUF5 in a fused mixture of calcium and sodium chlorides, using a graphite anode and a molybdenum cathode (27).…”

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Fiftieth Anniversary: A Half Century of Aluminum Developments

Edwards

1952

J. Electrochem. Soc.

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) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 54.202.163.228 Downloaded on 2018-05-07 to IP Vol. 99,No. 11 F I F T Y Y E A R S OF I N D U S T R I A L E L E C T R O L Y S I S 299Cresistance to corrosion. In 1907, the Pittsburgh Reduction Company had acquired a status which justified changing its name to Aluminum Company of America, a name now frequently shortened to Alcoa by press and public. In the year 1915, the industry was trying to meet market demands with commercially pure aluminum and three or four wrought alloys and a similar number of casting alloys. However, in this decade there was developed in Germany an alloy called duralumin, which acquired greatly increased strength by a unique process of heat treatment. This alloy attracted the attention of the world by its performance in tile airships of Count Zeppelin during World War I. Research was stimulated by this discovery and an investigation at the National Bureau of Standards resulted in a plausible explanation for the mechanism of heat treatment.In the twenties, Alcoa's Aluminum Research Laboratories under the able direction of Francis C. Frary, Past President of The Electrochemical Society, origirated a series of heattreatable alloys with even wider application than duralumin. Another important development was the clad aluminum products in which the cladding electrolytically protected the core against corrosive attack. The first of these, developed by E. H. Dix, Jr., was known as Alclad and had a coating of pure aluminum and a core of heat-treatable aluminum-copper alloy. Another important development of Aluminum Reuearch Laboratories was the production by William Hoopes ~nd Francis C. Frary of aluminum of 99.99 per cent purity, by electrolytic refining. The Hoopes electrolytic cell employed a heavy aluminum-copper anode alloy on which was superimposed a lighter fluoride-base electrolyte with the pure aluminum floating on top and serving as cathode. Graphite electrodes served as cathode current leads.Today, the industry employs some 25 wrought alloys in various forms such as plate, sheet, bar, extrusions, and forgings. A similar number of alloys find application in the production of castings. The strength of commercially available forms of aluminum has about tripled in fifty years.In the year following the founding of The American Electrochemical Society, the Wright brothers flew a motor-driven, heavier-than-air plane for a distance of 852 ft. This plane's engine had a number of aluminum parts, but it was to be a long time before the airplane offered a substantial market for aluminum. The hope for such a market was encouraged by the performance of the Zeppelins, but it was not until the decade following World War I that the all-aluminum airplane became a commercial reality. The availability of strong aluminum alloys and investigations of structural design with aluminum have resulted in extensNe application of this light metal not only in airplanes, trucks, automobiles, r...

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Fiftieth Anniversary: A Half Century of Aluminum Developments

Edwards

1952

J. Electrochem. Soc.

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“…In 1939, Marden 6 reported on the fluorescent lamp which had been invented a year before, and discussed the properties of various fluorescent materials. In a meeting of The Electrochemical Society in 1939, a Luminescence subsection of the Electronics Division was established.…”

Section: Survey Of Luminescence Papers Published In the Journal In Thmentioning

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Developments in Luminescence and Display Materials Over the Last 100 Years as Reflected in Electrochemical Society Publications

Chen

Lockwood

2002

J. Electrochem. Soc.

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“…Electrolysis. Thorium, 102 uranium, 103 and plutoluum'* metals have been prepared by electrolysis of molten salts on various scales up to multikilograms. The most common procedure is electrolysis of the actinide chloride or fluoride in a mixed-chloride bath contained in a graphite crucible anode.…”

Section: Reductions By Active Metalsmentioning

confidence: 99%

Experimental studies of actinides in molten salts

Reavis¹

1985

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This review stresses techniques used in studies of molten salts containing multigram amounts of actinides exhibiting intense alpha activity but little or no penetrating gamma radiation. The preponderance of studies have used halides because oxygencontaining actinide compounds (other than oxides) are generally unstable at high temperatures. Topics discussed here include special enclosures, materials problems, preparation and purification of acticide elements and compounds, and measurements of various properties of the molten volts. Property measurements discussed are phase relationships, vapor pressure, density, viscosity, absorption spectra, electromotive force, and conductance.

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The Production and Utilization of Thorium and Uranium

Cited by 9 publications

References 0 publications

Fiftieth Anniversary: A Half Century of Aluminum Developments

Fiftieth Anniversary: A Half Century of Aluminum Developments

Developments in Luminescence and Display Materials Over the Last 100 Years as Reflected in Electrochemical Society Publications

Experimental studies of actinides in molten salts

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