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Articles 16141 - 16170 of 16387

Full-Text Articles in Materials Science and Engineering

Geology Of A Portion Of The Bull Mountain Range Jefferson County, Montana, Thomas A. Greene Jan 1939

Geology Of A Portion Of The Bull Mountain Range Jefferson County, Montana, Thomas A. Greene

Bachelors Theses and Reports, 1928 - 1970

Work was first done on a known section, the south Boulder Section, in order to familiarize the student with the formations. Most of the area was mapped by plane table and telescopic alidade, general features being surveyed by automobile traverse and a pacing traverse.


A Report Of The Geology Of The Golden Sunlight Mining District, Roy A. Mccready Jan 1939

A Report Of The Geology Of The Golden Sunlight Mining District, Roy A. Mccready

Bachelors Theses and Reports, 1928 - 1970

This paper is a report of a geological survey made of an area of approximately fifty square miles lying Northeast of Whitehall, Montana, in the region of the Golden Sun­light Mine. The survey was made by a field party consisting of twenty-three members of the senior class of the Montana School of Mines.


Effects Of Zirconium Compounds On A Bright Glaze, Stuart Dods Jan 1939

Effects Of Zirconium Compounds On A Bright Glaze, Stuart Dods

Bachelors Theses

"The standard method for producing opacity and to some extend sic mattness in a glaze has always been the use of small amounts of tin oxide. This oxide, however, is very expensive and tends to fluccuate sic in price over a wide range due to world market conditions. The ceramic industry, therefore, has been searching for some substitutes for the tin oxide with some success. At the present time zinc oxide, antimony oxide, and zirconium oxide are used with varying degrees of success as opacifiers. Zirconium oxide and compounds are less soluble than the other oxides previously used. Therefore, it …


A Process For Making Refractory Insulating Brick, Albert Lloyd Tetley Jan 1939

A Process For Making Refractory Insulating Brick, Albert Lloyd Tetley

Bachelors Theses

"The object of this study was to investigate the fundamental principles of producing an insulating brick by making the pore structure of air bubbles entrapped in a clay slip. Since a clay water mixture or any material containing entrapped air will loose this air when placed under vacuum, it is thought that placing the clay slips under a pressure would cause a considerable pore structure in the slip when the pressure is released. In the common method of making insulting brick, the fired brick must be ground to size as they cannot be molded to a definite size and shape. …


South Moccasin Kaolin Deposit, Walter Everly Jan 1939

South Moccasin Kaolin Deposit, Walter Everly

Bachelors Theses and Reports, 1928 - 1970

Kaolin has never been considered an important economic mineral in Montana. Deposits of Kaolin in this state are not described in the literature and apparently very few deposits have been found.


Study And Correlation Of Belt And Cambrian Arkoses Near Limespur, Montana, Ryan C. Mcnamee Jun 1938

Study And Correlation Of Belt And Cambrian Arkoses Near Limespur, Montana, Ryan C. Mcnamee

Bachelors Theses and Reports, 1928 - 1970

In the vicinity of Limespur, Montana, a siding along the Northern Pacific Railroad near Whitehall, Montana, occurs a characteristic type of arkose where­ in many small red mineral grains are distributed throughout the rock mass. It is in this respect that this arkose differs from other arkoses in the surrounding region.


A Study On The Origin Of Banded Agate, James E. Driscoll Jun 1938

A Study On The Origin Of Banded Agate, James E. Driscoll

Bachelors Theses and Reports, 1928 - 1970

Agate in any of its varieties presents numerous problems in regard to its origin. Many types have been described and their beauty elaborated upon, but little has been written concerning their formation and the problems involved. The genesis of agate implicates an amazing complexity of physical and colloid­al chemistry, as well as, various principles of geology.


Underground Stratigraphy Of Montana, Virgil R. Chamberlain Jun 1938

Underground Stratigraphy Of Montana, Virgil R. Chamberlain

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to study the subsurface stratigraphy of the state of Montana from information acquired from well logs, composite logs, and measured sections. Underground stratigraphy is important for the intelligent prospecting for oil, gas, or water. A knowledge of the strata beneath us can be gathered only by measurements of numerous outcrops or by deep drilling with careful sampling or logging of the formations passed through.


The Jefferson Canyon Gypsum Deposit., Arthur Talpt Jun 1938

The Jefferson Canyon Gypsum Deposit., Arthur Talpt

Bachelors Theses and Reports, 1928 - 1970

Gypsum deposits are widespread geographically and are in many geo­logic formations. Ordinarily their character and origin, for the most part sedimentary, are not difficult to ascertain. Near Lewis and Clark Caverns, east of Whitehall, Montana, occurs a deposit of gypsum unique in many re­spects.


Age Hardening Of Silver-Platinum Alloys, Robert A. Wilson May 1938

Age Hardening Of Silver-Platinum Alloys, Robert A. Wilson

Bachelors Theses and Reports, 1928 - 1970

The alloy system selected for study was the binary alloy of platinum and silver. An examination of the various silver alloy diagrams revealed that of several possible alloys, the silver platinum was the most suit­able with regard to solubility.


Alkali Leaching Of Antimony Sulphide And Electrolytic Recovery Of Antimony From The Resulting Leach Solution, Vincent J. Andrews May 1938

Alkali Leaching Of Antimony Sulphide And Electrolytic Recovery Of Antimony From The Resulting Leach Solution, Vincent J. Andrews

Bachelors Theses and Reports, 1928 - 1970

It is the purpose of this investigation to obtain some insight into optimum conditions for leaching Stib­nite with sodium hydroxide solution and also to steady the factors affecting the electrolysis of the resulting solution.


Electrolytic Recovery Of Copper And Zinc From Brass., V. Kent Loughran May 1938

Electrolytic Recovery Of Copper And Zinc From Brass., V. Kent Loughran

Bachelors Theses and Reports, 1928 - 1970

The reclamation of metals from scrap is becoming increasingly important in the metallurgical industry. Copper, because it does not corrode readily and is electronegative to most common metals, is peculiarly adapted to reclamation.


Magnesium - Tellurium By Powder Methods, George Gale May 1938

Magnesium - Tellurium By Powder Methods, George Gale

Bachelors Theses and Reports, 1928 - 1970

Today considerable work is being done in the compressed metal powder field which is gradually ob­taining prominence as a valuable branch of metallurgy. The mass of data, however, has led to many different ideas on the results of sintering.


Geology And Ore Deposits Of The Golden Messenger Mine, Lewis And Clark County, Helena, Montana., John C. Archibald Jr. May 1938

Geology And Ore Deposits Of The Golden Messenger Mine, Lewis And Clark County, Helena, Montana., John C. Archibald Jr.

Bachelors Theses and Reports, 1928 - 1970

The Golden Messenger Mine which is approximately twenty-three miles northeast of Helena, Montana, near York, on Trout Creek, has long presented several problems of both theoretical and practical interest.


The Geology And Ore Deposits Of Jardine, Montana, Wolter Duykers May 1938

The Geology And Ore Deposits Of Jardine, Montana, Wolter Duykers

Bachelors Theses and Reports, 1928 - 1970

The subject to be covered by this paper is based upon field study made during a six week stay at Jardine. The work began on June 19, 1937 and ended on July 31 of the same year.


A Rapid Determination Of Small Amounts Of Lead In Zinc, George T. Hanson May 1938

A Rapid Determination Of Small Amounts Of Lead In Zinc, George T. Hanson

Bachelors Theses and Reports, 1928 - 1970

This investigation, carried on in the metallur­gical laboratories at the Montana School of Mines, was undertaken with the desire to work out a rapid method for the estimation, or the determination, of the amount of lead in zinc.


The Electrodeposition Of Manganese From Certain Aqueous Solutions., William C. Wallace May 1938

The Electrodeposition Of Manganese From Certain Aqueous Solutions., William C. Wallace

Bachelors Theses and Reports, 1928 - 1970

Manganese has been successfully electrodeposited from aqueous solutions in past years by several work­ers in electrochemical and electrometallurgical fields.

The present work was concerned, primarily, with investigation of electrodeposition from solutions which are commercially obtainable from the hydrometallurgical or pyrometallurgical treatment of the low grade mangan­ese deposits of this country.


The Geology Of The Southern Central Portion Of The Morrison Cave Area., Arthur Talpt Feb 1938

The Geology Of The Southern Central Portion Of The Morrison Cave Area., Arthur Talpt

Bachelors Theses and Reports, 1928 - 1970

Morrison Cave is located about 50 miles southeast of Butte, Montana. It was named after the man who discovered it. Later it was taken over by the State and renamed Morrison Cave State Park. Recently the government with the aid of the Civilian Conservation Corps has built a new road to the cave and has made the interior more accessible. The name of the cave is now Lewis and Clark Cavern National Monument.


Laboratory Concentration Of A Lead-Zinc-Fluorspar Ore From Southern Illinois, Shiou-Chuan Sun Jan 1938

Laboratory Concentration Of A Lead-Zinc-Fluorspar Ore From Southern Illinois, Shiou-Chuan Sun

Masters Theses

"The purpose of this investigation was to ascertain the feasibility of preparing marketable products from a rather complex sulphide-fluorspar ore"--Object, page 2. "The ore was examined exhaustively by chemical, microscopic, and mineralogical methods of analysis. After a thorough knowledge of the physical characteristics of the ore had been obtained, flotation concentration tests were made to separate the sulfide minerals from the fluorspar and to attempt to prepare lead-zinc and fluorspar concentrates of marketable grade"--Scope of Work Done, page 2.


The Control Of The Grain Size Of Tin., Robert D. Macdonald May 1937

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 Electroplating Of Cadmium From Sulfate Solutions, Lewis S. Prater May 1937

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. May 1937

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 Electrical Conductivity Of The Copper-Aluminum Alloys., William W. Hintalla May 1937

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 Effect Of Temperature On The Rate Of Dissolution Of Gold In Cyanide Solutions Which Have A Constant Oxygen Content., Robert Currie May 1937

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 May 1937

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 May 1937

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 May 1937

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.


Geology Of The Tuxedo Mining District, R. W. Lawson, B. R. Tarrant, A. L. Gallagher May 1937

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.


The Deposition Of Monomolecular Films., Albert Wilbur Schlechten May 1937

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.


The Development Of A New Process For The Manufacture Of Insulating Refractories, Miles E. Tyrrell Jan 1937

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 …