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Articles 1 - 14 of 14
Full-Text Articles in Materials Science and Engineering
The Control Of The Grain Size Of Tin., Robert D. Macdonald
The Control Of The Grain Size Of Tin., Robert D. Macdonald
Bachelors Theses and Reports, 1928 - 1970
The tin alloys of tellurium are extremely hard and have very great tensile strength. It was thought that the reduction of the rate of grain growth of tin with the addition of tellurium accompanied this hardening and strengthening and such way found to be true.
The Electrical Conductivity Of The Copper-Aluminum Alloys., William W. Hintalla
The Electrical Conductivity Of The Copper-Aluminum Alloys., William W. Hintalla
Bachelors Theses and Reports, 1928 - 1970
Among the many aluminum alloys which have been studied are the binary copper-aluminum alloys. These have proven to be among the most useful of the aluminum alloys thus far worked upon.
The Electroplating Of Cadmium From Sulfate Solutions, Lewis S. Prater
The Electroplating Of Cadmium From Sulfate Solutions, Lewis S. Prater
Bachelors Theses and Reports, 1928 - 1970
It has been proven that cadmium forms a very satisfactory plate on steel, which has to withstand severe corrosion, especially the corrosion of sea water and spray. The metal is now successfully plated electrolytically from cyanide solutions, but wherever work is carried on with cyanide, there is great danger of poisoning to the workers.
The Inhibitory Effects Of Carbonaceous Materials On The Cyaniding Of Gold Ores., David Currie Jr.
The Inhibitory Effects Of Carbonaceous Materials On The Cyaniding Of Gold Ores., David Currie Jr.
Bachelors Theses and Reports, 1928 - 1970
Carbon and carbonaceous material have been known to have a deleterious effect upon the cyanidation of gold and silver ores since the very beginning of the process. Organic matter is a common source of impurities in cyanide solution, its reducing effect being notorious.
The Effect Of Temperature On The Rate Of Dissolution Of Gold In Cyanide Solutions Which Have A Constant Oxygen Content., Robert Currie
The Effect Of Temperature On The Rate Of Dissolution Of Gold In Cyanide Solutions Which Have A Constant Oxygen Content., Robert Currie
Bachelors Theses and Reports, 1928 - 1970
Since the development of cyanidation into a highly efficient process for treating gold ores, many papers have been written on its various aspects. Although, there has been much work done on it, the chemistry of the reaction is not yet completely understood.
The Presence Of Rhenium In Montana Manganese Ores., Henry E. Swanson
The Presence Of Rhenium In Montana Manganese Ores., Henry E. Swanson
Bachelors Theses and Reports, 1928 - 1970
Rhenium properties offer many interesting possibilities, therefore any ores containing rhenium would be of considerable value. Its close relationship to manganese in the periodic table led to the belief that manganese ores would be an excellent place to search for the metal. Investigation of the literature of rhenium revealed that no ore was known to contain more than 0.001 per cent of rhenium.
The Electrowinning Of Copper From Roasted Sulphides, Thomas B. Linn
The Electrowinning Of Copper From Roasted Sulphides, Thomas B. Linn
Bachelors Theses and Reports, 1928 - 1970
A hydrometallurgical process for the recovery of copper from flotation concentrates has long been considered an attractive possibility. The object of such a method is to produce electrolytic copper without resorting to expensive matte smelting and converting.
Electrolytic Recovery Of Copper And Zinc From Brass, D. H. Swank
Electrolytic Recovery Of Copper And Zinc From Brass, D. H. Swank
Bachelors Theses and Reports, 1928 - 1970
The purpose of this research was to continue the work of Thomas Parker, who worked on the recovery of copper and zinc from brass during the school year l934 - 1935. Since there is such a wide variety of brasses made with usually a third alloying constituent, remelted scrap is suitable only for castings of wide tolerance in specifications.
The Deposition Of Monomolecular Films., Albert Wilbur Schlechten
The Deposition Of Monomolecular Films., Albert Wilbur Schlechten
Bachelors Theses and Reports, 1928 - 1970
The formation of monomolecular films is possible because of the action of the heteropolar molecules of certain fatty acids, especially stearic. Under the proper conditions the acid will spread out until a monomolecular film is formed.
Geology Of The Tuxedo Mining District, R. W. Lawson, B. R. Tarrant, A. L. Gallagher
Geology Of The Tuxedo Mining District, R. W. Lawson, B. R. Tarrant, A. L. Gallagher
Bachelors Theses and Reports, 1928 - 1970
The Tuxedo mining district lies fifteen miles west of Butte on the south east end of Deer Lodge valley. Prospecting and mining has been carried on in this district for about 20 years. As a result many pits have been dug, several adits have been driven, and two or three shallow shafts have been sunk.
A Comparison Of Silicates Of Sodium And Potassium As The Bonding Agent In Cold-Set Refractory Cements, Kenneth Frederick Sheckler
A Comparison Of Silicates Of Sodium And Potassium As The Bonding Agent In Cold-Set Refractory Cements, Kenneth Frederick Sheckler
Bachelors Theses
"The insistent demand for higher grade refractories has resulted in the manufacture of a product which will withstand higher temperatures, have greater slag resistance, greater resistance to spalling action and deformation under load. These better grades of refractory materials have been developed as the result of extensive research on the part of the manufacturers. In order that these higher quality refractories may be employed with the best results, it is necessary that they be set with a refractory cement which also possesses these desirable properties. The commercial refractory cements may be divided into two classes according to their method of …
The Development Of A New Process For The Manufacture Of Insulating Refractories, Miles E. Tyrrell
The Development Of A New Process For The Manufacture Of Insulating Refractories, Miles E. Tyrrell
Bachelors Theses
"In as much as the grinding of insulating brick to size after the firing operation is one of the most important and at the same time one of the most expensive operations involved in their manufacture, it was felt that the development of a method for manufacture of insulating brick which would do away with the necessity of grinding after firing would be a very worth while project. With this object in mind it was decided that the logical method would be to incorporate the pore structure in the mix while green and at the same time to add some …
The Development Of Spinels In Two Component Coloring Oxide Systems And Their Applications As Underglaze And Overglaze Colors, Michael Edward Green
The Development Of Spinels In Two Component Coloring Oxide Systems And Their Applications As Underglaze And Overglaze Colors, Michael Edward Green
Bachelors Theses
"For many years the fact has been known that when two or more of the coloring oxides are intimately mixed together and fired, there is a reaction between the components of the mixture. Little is known of these reactions - whether they are chemical, physical or mineralogical changes in the nature of the substances. The purpose of this investigation has been to ascertain the true nature of these reactions and the effect of the changes in the two components making up the system, upon their uses as underglaze and overglaze colors as applied in the ceramic industry"--Introduction, page 1.
Pyrochemical Changes In Missouri Halloysite, Frank Joseph Zvanut
Pyrochemical Changes In Missouri Halloysite, Frank Joseph Zvanut
Doctoral Dissertations
"For centuries it has been known that the application of heat to a clay or a clay body produces changes that make it an entirely different substance from the original raw clay. Ever since the earliest civilizations produced crude building brick by baking formed clay bodies in the sun's rays, mankind has been speculating on the nature of the changes that convert soft, friable, plastic clays into hard, strong, non-plastic, rock-like masses. It has been only within the last two decades, however, that progress has been made in the solution of problems dealing with the resultant products in fired clay …