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  • AIME
    Part II – February 1969 - Communication - Nickel Activity Data in the Nickel-Aluminum System at 1000°C

    By A. U. Seybolt, R. E. Honnemon

    THE purpose of this communication is to present activity data of nickel in the Ni-A1 binary system that was obtained for oxidation studies in this system. This data has been calculated from previous

    Jan 1, 1970

  • AIME
    Minerals Beneficiation - Rotobelt Filter, New Tool in Minerals Beneficiation

    By C. F. Cornell, R. C. Emmett, D. A. Dahlstrom

    FOR many years the disk-type and cloth-covered drum filters have found widest application in liquid-solids separation, which uses continuous filters. The disk type is less expensive, occupies less flo

    Jan 1, 1959

  • AIME
    Mining - Mechanics of Rock Slopes

    By D. H. Trollope

    In engineering in general, close agreement between theoretical predictions and structural performance is rare—this is particularly true in rock slopes. Since the complexity of natural arrangements mak

    Jan 1, 1961

  • AIME
    Institute of Metals Division - Microstructure of Iron-Sulfur Alloys

    By Lawrence H. Van Vlack, Alfred S. Keh

    The distribution of sulfur in iron was found to be dependent upon the time and temperature of the treatment as well as the chemical composition of the sulfide. With higher temperatures, the sulfide ph

    Jan 1, 1957

  • AIME
    Problems Of Mining And Processing Mineral Aggregates

    By Nathan C. Rockwood

    THE title of this paper, I understand, was suggested by professional mining engineers as an opportunity for someone to pose problems rather than to offer solutions for them, but the paper will merely

    Jan 1, 1943

  • AIME
    Reservoir Engineering- Laboratory Research - Effect of Cleavage Rate and Stress Level on Apparent Surface Energies of Rocks

    By W. W. Krech, T. E. Perkins

    As fractures are propagated through rocks, energy is absorbed near the extending crack tip. Apparent surface energies for several rocks have been measured by cleavage under dynamic con-ditions. At nom

    Jan 1, 1967

  • AIME
    Institute of Metals Division - Some Modifications in the Diagram for the Tantalum-Zirconium System

    By L. F. Pease, J. H. Brophy

    A phase diagram for the Ta-Zr system is presented. The system is of the minimum-melting point type with the 0-zirconium phase decomposing monotectoidally at 785°C and 95.5 at. pct Zr. The minimum s

    Jan 1, 1963

  • AIME
    Comparative Tests Of Hammer Drill Bits

    By Carroll Forbes

    INTRODUCTION MANY different shapes of drill bits are in use with hammer drills, but little definite information is available whereby to judge which one of these shapes is the best. The following inv

    Jan 8, 1917

  • AIME
    Bibliography of Injuries to Vegetation by Furnace Gases

    By Persifor Frazer

    1. SMOKE PREVENTION. Report of Select Committee of House of Commons (1843). Nuisance considerably abated in Leeds (Wm. Backerd, July 13, 1843, 239 pages). A synoptic index, p. 211, gives, in alphabet

    May 1, 1907

  • AIME
    Part II – February 1968 - Papers - Dislocation Structures in Niobium (Columbium) Single Crystals Observed by Optical Microscopy

    By R. G. Vardiman, M. R. Achter

    Observations of dislocation structure in niobium are presented using two techniques. Triangular pits developed by electroetching are confined to orientations in the stereographic triangle between the

    Jan 1, 1969

  • AIME
    Rock Mechanics - Stress Required to Initiate Core Discing

    By V. J. Parks, Leonard Obert, A. J. Durelli

    The state of stress in the region where core discing initiates has been investigated through the use of three-dimensional photoelastic models and the results of this study have been compared with thos

    Jan 1, 1969

  • AIME
    Production and Preparation of Blast-furnace Flux

    By P. C. Hodges

    WHILE there is very little romance connected with the operation of a stone quarry, yet to those who have participated in the growth and development of a business that has been a pioneer in its field a

    Jan 1, 1936

  • AIME
    Geophysics and Geochemistry - Quantitative Distribution of Major and Trace Components in Rock Masses

    By E. H. T. Whitten

    Fundamental principles of trend surface analysis are briefly reviewed. Recent analyses of several granite masses illustrate the method of estimating the quantitative regional composition and also vari

    Jan 1, 1961

  • AIME
    A Study Of Drosses From Lead Blast Furnaces

    By Gerald Greene

    Tan various lead producers have given the subject of lead drosses much attention in recent years but the problem of their economical treatment is yet to be solved. Formerly the copper in the furnace

    Jan 1, 1935

  • AIME
    Hardening Effects Resulting From The Formation Of Both A Precipitate Phase And A Superlattice

    By M. R. Pickus, I. W. Pickus

    ORDINARILY age-hardening is thought of as being associated with a limited solubility of one metal in another. Much less has been written about the type of age-hardening that attends the formation of s

    Jan 1, 1943

  • AIME
    Reservoir Engineering – General - Pulsed Nuclear Magnetic Resonance Studies of Porosity, Movable Fluid and Permeability of Sandstones

    By A. Timur

    Fluid flow properties of porous media have long been of interest in such varied disciplines as geology, geophysics, soil mechanics, and chemical, civil, and mechanical engineering. This interest has r

    Jan 1, 1970

  • AIME
    Institute of Metals Division - Deformation Twinning in Copper Whiskers of [111] Orientation (TN)

    By M. N. Shetty

    LARGE copper whiskers (-100 p) of 11111 orientation were tested in a floor-model Instron testing machine, at liquid nitrogen temperature. (Testing methods will appear elsewhere.) Whiskers deformed by

    Jan 1, 1965

  • AIME
    82. Changes and Developments in Concepts of Ore Genesis - 1933 to 1967

    By John D. Ridge

    Here are summarized 162 papers, published between 1933 and 1967, that deal with various aspects of ore genesis. Emphasis is placed on additions to, or modifications of, ore-formation theory, no matter

    Jan 1, 1968

  • AIME
    Gold: Its Production and Marketing

    By F. W. Bradley

    GOLD is a large subject. One could talk about its geological or mineralogical occurrences, prospect- i11.g for it, mining of .it, its metallurgy or its marketing; but I have decided to limit my discus

    Jan 1, 1932

  • AIME
    Coal - Cyc!one Thickener Applications in the Coal Industry

    By H. E. Criner, M. G. Driessen

    THE cyclone thickener has two important applications in wet washing plants: (1) water clarification, and (2) fine coal recovery. The thickener consists of a conical chamber into which the fluid i

    Jan 1, 1951