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- Ceramic materials -- Bonding<br />Refractory materials -- Additives -- Testing (1)
- Contact angle -- Mathematical models<br />Copper -- Metallurgy<br />Copper oxide<br />Flotation reagents (1)
- Copper oxide<br />Direct reduction (Metallurgy)<br />Magnesium<br />Rutile (1)
- Electric furnaces<br />Extractive distillation<br />Zinc -- Metallurgy (1)
- Magnetic separation<br />Tin<br />Wolframite (1)
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- Manufacturing processes -- Quality control<br />Product design -- Methodology -- Analysis<br />Wire netting industry -- United States<br />Wire netting (1)
- Plasticity -- Mathematical models<br />Refractory materials -- Thermomechanical properties<br />Refractory materials (1)
- Tin<br />Titanium alloys -- Metallurgy<br />Titanium alloys (1)
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A Study Of The Separation Of Wolframite From Tin-Oxide, Chih-Wen Ying
A Study Of The Separation Of Wolframite From Tin-Oxide, Chih-Wen Ying
Masters Theses
"A number of mines in china, Bolivia, England, and other countries contain both tin-oxide and wolframite. Owing to the fact that the specific gravity of tin-oxide and wolframite is so nearly the same, considerable difficulty is experienced in making a gravity separation, and all attempts to do so by wet or dry concentration have given very poor results. The perfection of magnetic separators has done much to mitigate this difficulty, so that now complex ores of this nature can be treated in a satisfactory manner. The mixed concentrate from the tables or other concentrators, after being roasted to expel sulfur …
A Test Method For Measuring The Flow In Refractory Materials At High Temperatures, Christen Knudsen
A Test Method For Measuring The Flow In Refractory Materials At High Temperatures, Christen Knudsen
Masters Theses
"One of the most important properties of refractory materials is the ability to resist stress which may either be directly applied or originate in the material. The factors which govern the resistance to stress include the modulus of elasticity, the ultimate strength under different types of stress, and the "flow" characteristics which become of importance when the material is stressed at the temperature at which plasticity is developed. Systematic determinations of the mechanical properties such as modulus of elasticity and ultimate or breaking stress is rather difficult or more or less impossible to carry out at the temperature at which …
The Effects Of Moisture In Grog Upon Dry Pressed Mixes Containing Grog, Charles L. Mckinnis
The Effects Of Moisture In Grog Upon Dry Pressed Mixes Containing Grog, Charles L. Mckinnis
Masters Theses
"It has been found that the aging of clay-grog-water mixes before pressing proves to be quite beneficial. The purpose of the aging period is to allow the added water to disseminate throughout the mixture of clay (plastic) and grog (non-plastic) in an effort to bring about the best bonding action possible. The clay-grog-water mixture, if not aged, is of a sticky consistency; while, if the same mixture is aged for twenty-four (24) hours, it is readily workable. This process of aging has long been recognized as a "must" in the Ceramic Industry in obtaining mixtures of ideal workability"--Introduction, page 2.
A Preliminary Investigation Of The Titanium-Tin Equilibrium System, James Eugene Reynolds
A Preliminary Investigation Of The Titanium-Tin Equilibrium System, James Eugene Reynolds
Masters Theses
"Titanium is estimated to comprise about .63% of the lithosphere and atmosphere. This would render it the ninth in abundance of all the elements, and fourth in abundance of the metals suitable for mechanical and structural uses, being exceeded only by iron, aluminum, and magnesium. It is approximately 400 times more abundant than lead, which is generally considered to be quite plentiful. The chief restriction of the commercial availability of titanium in its pure form has been the difficulty of reducing it from its ores. Several methods have been proposed in the past and recent years, and R. S. Dean …
A Study Of The Retort Zinc Distillation Process, Albert Hoffman
A Study Of The Retort Zinc Distillation Process, Albert Hoffman
Masters Theses
"The problem of this thesis is to determine the optimum density of packing of the charge to a zinc retort under exact industrial conditions of temperatures and materials as it affects the production of zinc metal. It is well known that the quantity of zinc produced per cycle is benefited by increasing the density of charging, but increased density of packing or charging is limited by the diffusion, through the charge of the gases necessary to carry on the reduction reactions. In commercial practice there is also a secondary limitation dependent primarily upon the rate at which the heat can …
An Investigation Of The Reduction Of Rutile Copper Oxide Mixtures With Magnesium, Tryggve Smedsland
An Investigation Of The Reduction Of Rutile Copper Oxide Mixtures With Magnesium, Tryggve Smedsland
Masters Theses
"It is known that the addition of titanium to certain types of brasses and bronzes gives them additional valuable properties. The copper-titanium master alloy which is the natural addition agent for making these brasses can not, however, be used if it has been made aluminothermically. It appears that aluminum in the master alloy makes it useless for the above purpose. It should, therefore, be worth while to determine if it is possible to produce a copper-titanium alloy by some method which eliminates the contamination by aluminum, and which would give a copper-titanium which could be used with advantage as an …
Properties Of Wire Suitable For The Fabrication Of Wire Cloth, Campbell William Floyd Funk
Properties Of Wire Suitable For The Fabrication Of Wire Cloth, Campbell William Floyd Funk
Masters Theses
"In the highly competative [sic] wire cloth industry, improvement of product quality is of paramount importance. With an eye to the future, the Ludlow Saylor Wire Company of St. Louis decided to embark upon a research program with the hope of improving the quality of their products above already high standards. An industrial research fellowship was instituted at the Missouri School of Mines and Metallurgy at Rolla for graduate research studies of the metallurgical, mechanical and chemical properties of wire as the [sic] pertain to the weaving of industrial wire cloth. Although relatively small quantities of wire are defective, their …
Studies Of Contact Angles On Oxidized Copper Minerals, John Stewart Carr
Studies Of Contact Angles On Oxidized Copper Minerals, John Stewart Carr
Masters Theses
"Effective flotation of an ore is the result of several factors: selection of suitable reagents; the proper combination of reagents, processing conditions of the operation proper such as time intervals involved and the machinery used. To focus the investigation on a specific field it was decided to investigate in some detail the behaviour of the more popular collectors toward oxidized copper minerals. This investigation was carried out chiefly by applying contact-angle measurements as obtained with the various collectors on the basic carbonate and oxide copper minerals. This basic information was desirable before carrying out actual flotation tests. There was little …