23 resultados para Titanium impurities

em University of Michigan


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"Contract 954694."

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"Contract 954694."

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"Contract 954694."

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This report consists of the analytical procedures modified or developed at Pratt & Whitney Aircraft, CANEL, for the determination of alloying constituents and impurities in columbium and its alloys. Included are spectrophotometric methods for chromium, columbium, iron, molybdenum, tungsten, nickel, nitrogen and titanium; volumetric methods for chromium, vanadium and zirconium; emission and X-ray spectrographic methods for various alloying elements; a spectrographic method for zirconium and trace impurities and miscellaneous methods for aluminum, carbon, oxygen and hydrogen.

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This report describes a study of the reactions occurring in the spontaneous ignition of zirconium and titanium (and their alloys), with emphasis on the former. Conditions required for spontaneous ignition, including the effects of certain impurities, surface conditions, and composition of the atmosphere around the metal were investigated. In addition, the mechanism of ignition was studied by following the thermal history of the reactions during the first few milliseconds.

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Includes indexes.

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"TID-3039(Suppl. 1); Subject Category: Metallurgy and ceramics."

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Mode of access: Internet.

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"March 22, 1955."

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"August 1965."

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"August 1965."

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"Project No. 7351."

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"Materials Central, Contract No. AF 33(616)-6828, Project No. 7351."