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  • AIME
    Minerals Beneficiation - Chemical Upgrading of Stillwater Chromite

    By D. L. Harris

    Chemical upgrading testwork on Stillwater chomite concentrate shows that reduction roasting and leaching (sulfuric acid and/or ferric sulfate) can provide upgraded feed to ferrochromium furnaces for m

    Jan 1, 1964

  • AIME
    Institute of Metals Division - Crystal Structure of UAI4

    By Bernard S. Borie

    THE U-A1 binary system has been studied by Kaufmann and Gordon.' They have shown that three intermetallic compounds occur in the system: UAl², UAl², and a third compound tentatively identified as

    Jan 1, 1952

  • AIME
    Institute of Metals Division - Neptunium-Aluminum Intermetallic Compounds

    By O. J. C. Runnals

    The intermetallic compounds NpAl2, NpAl3, and NpAl have been prepared, and examined by X-ray diffraction methods. The compounds are isostructural with the corresponding U-Al compounds. NpAl3 is face-c

    Jan 1, 1954

  • AIME
    The Thirty-Hour Week of the Coal Miner

    By S. A. TAYLOR

    AN EDITORIAL on the Strike Situation in the Coal mining industry in the New York Evening Post of Nov. 4, 1919, gave what purported to be statistics of the Department of Labor, for a period of two week

    Jan 1, 1920

  • AIME
    Employees' Welfare

    Readers of recent Bulletins have doubtless observed that the problem of improving both material and moral condition of employees is receiving close attention from influential members of the Institute.

    Jan 5, 1918

  • AIME
    Gold and World Trade

    By James R. Finlay

    SOMETIMES the American Institute of Mining and Metallurgical Engineers appears to be a strictly technical society, and if so my paper should deal with the technical operations of finding and producing

    Jan 1, 1933

  • AIME
    Dealing With Interest Rate And Exchange Rate Risks

    By James L. Poole

    INTRODUCTION Companies in the mining industry are subjected at times to currency exchange rate risks and interest rate risks. The former occurs any time a firm deals in more than one currency. The

    Jan 1, 1985

  • AIME
    Technical Notes - Substructures in Retained-Beta Phase of Ti-Ni Alloys

    By J. Gordon Parr, D. H. Polonis

    IN a previous study of hypereutectoid Ti-Ni alloys' a substructure was observed in quenched powder specimens when the constitution was 100 pet retained ß body-centered-cubic phase. The alloy powd

    Jan 1, 1957

  • AIME
    Some General Problems of the Mineral Industry

    By Thomas T. Read

    THE official title of our topic for today is "Resources of Metals and Other Strategic Minerals," but in accepting the invitation to open this discussion I claimed the privilege of being allowed to tal

    Jan 1, 1929

  • AIME
    Institute of Metals Division - The Sigma Phase in Binary Alloys

    By P. Greenfield, P. A. Beck

    The phase is a hard and extremely brittle material with a tetragonal crystal structure, containing 30 atoms per unit cell' It occurs in many binary and ternary alloys of the transition elements.

    Jan 1, 1955

  • AIME
    The Continuous Wide Strip Steel Rolling Mill - Social and Economic Consequence of a Recent Development in American Steel-Mill Practice

    By Edwin Dudley Martin

    DURING the past twelve years the iron and steel industry has made a major advance through the development of the continuous wide strip rolling mill. So far-reaching have been the results that not only

    Jan 1, 1939

  • AIME
    Part III - Papers - Rapid Vapor Phase Growth of High-Resistivity GaP for Electro-Optic Modulators

    By J. J. Tietjen, D. Richman

    Single-crystal Gap lms been epitaxially grow from the vapor phase at a rate oJ 3 p per nzin without encountering a7Zy low-ang-le grain boundaries or debwading- the electrical properties of the materia

    Jan 1, 1968

  • AIME
    New York Paper - Mental Tests in Industry (with Discussion)

    By Robert M. Yerkes

    The following is a brief account of the methods of measuring intelligence especially prepared for use in the U. S. Army, of typical results, and of some of their immediately practical applications. It

    Jan 1, 1919

  • AIME
    The Thriving Bootleg Anthracite Industry in Pennsylvania

    By George H. Jones

    NO STRANGER phenomenon exists in the American mining industry today than the so-called bootleg anthracite industry in Pennsylvania which now produces probably close to 15 per cent of the total hard co

    Jan 1, 1939

  • AIME
    Iron and Steel Division - The Density of Liquid Iron from the Melting Point to 2500°K

    By J. A. Cahill, A. D. Kirshenbaum

    Using an alumina or zirconia crucible with an alumina sinker or a molybdenum sinker coated with zirconium dioxide, the density of liquid iron was determined by the immersed-sinker method over the temp

    Jan 1, 1962

  • AIME
    Present Economic Situation of the Oil Industry

    By M. E. Lombardi

    IN comparison with the mining industry the petroleum industry is new and inexperienced, and until now it might have been called the fortunate industry. Its great good fortune consisted in two things;

    Jan 1, 1931

  • AIME
    Institute of Metals Division - Prismatic Slip in Zone-Refined Beryllium (TN)

    By D. F. Kaufman, E. D. Levine, L. R. Aronin

    ThE primary slip plane in hcp metal crystals can usually be inferred from the c/a ratio. Basal slip is the primary system at room temperature for zinc, cadmium, magnesium, cobalt, and rhenium, all of

    Jan 1, 1964

  • AIME
    The Passing of the Prospector

    By MERLE HOWARD GUISE

    WHEN I was a boy I walked into Fairbanks in 1905. I was but a soft chechako, and arrived with blisters covering my feet, as a result of "mushing" the 400-mile trail on foot. Because of them, the displ

    Jan 1, 1929

  • AIME
    Members Of The Institute In Military Service (5ef1cd2c-4f23-4f16-80ae-691d61adc2ae)

    (The following list contains the names of those members of the Institute of whose connection with military service we have only recently become acquainted; it also includes the names of a few who have

    Jan 7, 1918

  • AIME
    Gold And Silver - Money And Credit

    By Charles White Merrill

    Money is one of the most .pervasive elements in human life. The compensation for a workman's daily efforts is expressed as a wage and is measured in money. What an individual may consume depends

    Jan 1, 1959