Engineering Commons^™

The Analysis Of Two-Dimensional Laminar Flow Utilizing A Doubly Refracting Liquid, John William Prados

Doctoral Dissertations

The optical characteristic exhibited by certain liquids known as flow double refraction offers attractive features in the analysis of two-dimensional laminar flow situations, especially those in which measuring probs are undesirable. Such liquids become anisotropic to the passage of light when set in motion; and when they are viewed in polarized light while flowing through a transparent channel, visible interference patterns are observed. These patterns may be related to the magnitude and direction of the shearing stresses set up by two-dimensional laminar flow, and from suitable calibration under down flow conditions they may be used to determine the stress distribution …

An Experimental And Theoretical Investigation Of The Preferred Orientation In Deformed And Recrystallized Hafnium, David S. Gould

Doctoral Dissertations

"The research problem, as presented, therefore became two-fold; first to investigate and determine the feasibility of fabrication of hafnium and secondly to study the deformation characteristics of the material in light of the overall study of hexagonal metals aimed at the development of an overall general theory of plastic deformation. This appeared to envolve a study of the operating deformation systems in hafnium and the theoretical and experimental study of the textures resulting from plastic deformation. These were to be analyzed in comparison with the other hexagonal metals.

It became evident immediately that the research techniques which must be evolved …

A Thermodynamic Study Of The Titanium Sulfides, Reinhard Paul Abendroth

Doctoral Dissertations

"The determination of the thermodynamic properties of chemical compounds is in essence an experimental one. The purpose of this investigation was (1) to make an experimental determination of the thermodynamic properties of the titanium sulfides (2) to determine what sulfide phases are present in the titanium-sulfur system (3) to show the relationships between the various phases present"--The Problem, Statement of the Problem, page 3.