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Institute of Metals Division - Grain Structure and Solute Segregation in Bismuth Ingots Solidified from Undercooled MeltsBy K. G. Davis, P. Fryzuk
A study has been made of the effect of undercooling on the grain structure and solute distribution in small ingots of pure bismuth and of a 100 ppm Ag in bismuth alloy. Autoradiographic evidence shows
Jan 1, 1965
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Toronto Paper - The Panoramic Camera Applied to Photo-Topographic WorkBy Charles Will Wright
The application of the camera as an adjunct to topographic mapping began practically with its invention, and it has been employed with varying success since that time. With the exception of the camera
Jan 1, 1908
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An Equilibrium Study Of The Distribution Of Phosphorus Between Liquid Iron And Basic SlagsBy John Chipman, Theodore B. Winkler
IN order to understand more fully the complexities of the reactions occurring between the liquid steel and the slag in the basic open-hearth steelmaking furnace, investigations in this country and abr
Jan 1, 1946
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Magnesite And Related Minerals (89c69506-c63b-4dbd-bd0d-bcfced22ce11)By Raymond E. Birch, Oscar M. Wicken
THE mineral magnesite, formerly the source of nearly all magnesia, now shares this role with brucite, dolomite, and the world's natural and artificial brines. The mineral magnesite is the normal
Jan 1, 1949
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House Damage Criteria For Sag-Subsidence Over Illinois Room-And-Pillar Coal Mines (c81e3c7c-8e61-4ffa-8e26-d77996a3563c)By G. G. Marino, J. W. Mahar
This paper provides an understanding of the behavior and potential damage of homes resulting from sag-type mine subsidence. This is done with extensive research of numerous case histories in Illinois
Jan 1, 1986
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Reservoir Engineering-Laboratory Research - Waterflood Performance in a Stratified, Five-Spot Reservoir-A Scaled-Model StudyBy D. C. Lindley, D. H. Gaucher
The displacement of oil by water in a waterflood project is accomplished by the action of transient viscous, gravitational and capillary forces which drive fluid through interconnecting pore spaces to
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Chemistry of Dolomite-Fluxed Hematite and Magnetite Pellets (c0b3e5a2-63b4-4f04-97c1-3c27825eb96e)By J. J. Friel, E. S. Erickson
Dolomite-fluxed pellets of various compositions were made from magnetite concentrate, hematite concentrate and a concentrate containing a natural mixture of both. Physical properties and reduction tes
Jan 1, 1983
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Part XII – December 1969 – Papers - On the Restrictivity of the Thermodynamic Conditions for Spinodal Decomposition in a MuIticomponent SystemBy C. H. P. Lupis, Henri Gaye
There are m -I conditions for the stability of a solution of m components with respect to infinitesinzal flucturations. However, in most cases, only one of these conditions has to be considered to det
Jan 1, 1970
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Mineral-land ClassificationBy Max W. Ball
THE geologist or mining engineer, whose work takes him into the western United States, whether for the Government or private enterprises, is likely to be called upon to classify public lands as to the
Jan 1, 1921
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Technical Papers and Discussions -Miscellaneous Metals and Alloys - The Transformation of Cobalt (Metals Tech., April 1948, TP 2348) With discussionBy J. L. Tokich, A. R. Troiano
Since 1921, when Hull1 discovered that cobalt can exist in the face-centered cubic and hexagonal close-packed modifications, the transitions that occur in cobalt have been extensively studied. It is g
Jan 1, 1949
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Some Effects Of Sewickley Seam Mining On Later Pittsburgh Seam MiningBy F. R. Zachar
IT has always been understood, in northern West Virginia where both the Pittsburgh and Sewickley seams are mined, that pillaring or splitting in the lower Pittsburgh seam could break the interval stra
Jan 1, 1952
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Papers - Oxides in Basic Pig Iron and in Basic Open-hearth Steel (With Discussion)By T. L. Joseph
The extent to which hot metal from the blast furnace affects open-hearth practice and the quality of steel produced has been discussed widely. Open-hearth operators have attributed difficulties experi
Jan 1, 1937
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1978 Annual Review: Mineral Processing-Technology Battles Escalating CostsEscalating energy costs and tough environmental standards were two major factors affecting the minerals processing area in 1978 For the most part, new startups and research and development initiatives
Jan 5, 1979
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The End Of The CenturyTHE decades immediately before and after the end of the nineteenth century (1890-1910) were a period of increased activity in mineral industry education. One reason for this, undoubtedly, was the rapi
Jan 1, 1941
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Studies On The Activation Of Quartz With Calcium IonBy Strathmore R. B. Cooke
That calcium will activate quartz for flotation with anionic collectors such as soaps has been known for a number of years,1 2 3 and the method has been applied to the concentration of various iron or
Jan 1, 1949
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Institute of Metals Division - The Constitution of Aluminum-Rich Alloys of the Aluminum-Chromium-Manganese SystemBy J. W. H. Clare
An equilibrium isotherm at 550°C is given for ternary alloys rich in aluminum containing 0 to 15 wt pct Cr and 0 to 20 wt pct Mn. Phases encountered are: aluminum solid solution; stable temary comp
Jan 1, 1960
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Raw Coal Pre-Preparation (b0643b4f-9b1a-45af-80fc-96eb9739a8bb)By J. W. Leonard, J. C. Anderson, C. T. Holland
PREPARATION CONTROL IN UNDERGROUND MINING Selective Mining According to district Depending upon the particular geographic loca- tion or seam characteristics, modern raw coal preparation practi
Jan 1, 1979
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Physical Characteristics Of Commercial Copper-Zinc AlloysBy W. H. Bassett, C. H. Davis
ALTHOUGH brasses and bronzes have been made for ages, a systematic study of their physical properties has been carried out only during the years of the present century. Among these properties may be i
Jan 1, 1928
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New York Paper - Basic Refractories for the Open Hearth (with Discussion)By R. M. Howe, J. Spotts McDowell
Preparation and Use.—Magnesite is an important refractory in open-hearth, heating, and electric furnaces for steel-making and in many of those employed in the metallurgy of copper and lead. It is sold
Jan 1, 1920
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The Constitution Of The Tin BronzesBy Samuel Hoyt
THE writer has long been interested in seeking an explanation of the upper heat effect in the copper-tin alloys over the a + ß range, first described in 1913. These notes are offered, not at all as th
Jan 12, 1918