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Full-Text Articles in Engineering

A Study Of The Dissolution Of Titanium In Acids With Ammonium Fluoride Added, Charles Burroughs Gill Jan 1952

A Study Of The Dissolution Of Titanium In Acids With Ammonium Fluoride Added, Charles Burroughs Gill

Doctoral Dissertations

"Titanium can no longer be considered a rare metal, even though the modern era of its production came into being only a few years ago. The first discovery of titanium was in 1791 by an English clergyman, the Reverend William Gregor, and the name titanium became universally adopted when so called by a German mineralogist, Martin Klaproth, who rediscovered titanium three years later. Not until 1887 was the relatively pure, 75 percent, metal prepared by L. F. Nilson and O. Pettersson, whose experiments were repeated in 1910 by M. A. Hunter. Hunter is given credit for producing the first metallic …


Shaped Charges: Their Mechanism And Applications In Mining, Pranlal Girdharlal Sheth Jan 1952

Shaped Charges: Their Mechanism And Applications In Mining, Pranlal Girdharlal Sheth

Doctoral Dissertations

"A shaped charge, confined or unconfined, is a unit of explosive material with a cavity or hollow at the base. It behaves differently than an ordinary charge, and, when detonated, has been found to produce curious effects of concentrating the force of the explosive on an area opposite the cavity"--Introduction, page 1.


An Investigation Of The Deformation Textures Of Titanium, Dean Nesbit Williams Jan 1952

An Investigation Of The Deformation Textures Of Titanium, Dean Nesbit Williams

Doctoral Dissertations

"With the increase in production of titanium in recent years has come a great interest in the mechanical properties and in the possible uses of this metal. Due to the affinity of titanium for oxygen, nitrogen, carbon, and hydrogen, and the market effect of these elements on the mechanical properties, much of the work previously reported is unreliable. As purer commercial grades of titanium and high purity iodide titanium have become available for examination, research has been undertaken to correct and expand the knowledge of the properties of titanium. Although the uses of titanium are limited at the present time, …


Determination Of Progressive Corrosion Of Clay Flux Blocks, Ved Prakash Maheshwary Jan 1952

Determination Of Progressive Corrosion Of Clay Flux Blocks, Ved Prakash Maheshwary

Doctoral Dissertations

"The Problem. Corrosion of refractories by molten corrosive liquids like molten slags and glasses is of general occurrence in those parts of the furnaces where they come in contact with the liquids. The life of a furnace generally depends upon the progressive rate of corrosion of the refractories by the slags and glasses. There have been various methods used by the investigators to ascertain the useful life of a refractory product before its use in the furnaces, but the problem is so complex that even after decades of research work by the research engineers and technologists a satisfactory and easy …