| STUDIES OF THE BRITTLE BEHAVIOR OF CERAMIC MATERIALS. |
APR 1963 |
683 pages |
| Authors:
Nicholas A. Weil; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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 | The fundamental behavior of brittle nonmetallic ceramics was probed. Materials studied included poly and single crystals of MgO, BeO and two grades of Al2O3. The statistical fracture was found to be characterized by the Weibull theory. The effect of strain rates from 10 to the minus 7th power to 10 reciprocal seconds at from 75 to 1800 F on the fracture stress in bending was de termined experimentally. The effects ... |
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| RESEARCH ON THE BASIC NATURE OF STRESS CORROSION FOR VARIOUS STRUCTURAL ALLOYS AT ROOM AND ELEVATED TEMPERATURES |
FEB 1963 |
60 pages |
| Authors:
Frank A. Crossley; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Program objectives were: (1) to study the effect of microstructure on susceptibility to stress corrosion cracking in the short-transverse direction of 7075-T6 aluminum alloy; and (2) to study the kinetics of stress-corrosion cracking at elevated temperature of candidate materials for structural applications in the trisonic transport in the presence of sea salt. It was hypothesized that the poor resistance to stress corrosion of high-strength, wrought aluminum alloys was due to ... |
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| LINER FOR EXTRUSION BILLET CONTAINERS |
05 Dec 1962 |
97 pages |
| Authors:
S A Spachner; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Two shrink-fitted, compound sleeve assemblies have been designed to supply required support for use of solid ceramic, ceramic-coated metal, and elevated temperature metal extrusion liners, at stem pressures of 180,000 psi. Liner and sleeve machining and shrink-fitting data are supplied. The first assembly develops required support for ceramic liners and other materials which have high compressive strength and low tensile strength. The second assembly provides required support for materials which ... |
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| DEVICES FOR PALM SHAPE RETENTION OF PRESSURE GLOVES WITH INTERNAL INFLATION |
NOV 1962 |
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| Authors:
W.H. VILLIERS; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| DIFFUSION IN TITANIUM AND TITANIUM ALLOYS |
Oct 1962 |
67 pages |
| Authors:
Rodney P Elliott; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| The self-diffusion of Ti and the inter diffusion of Al, Zr, Mo, V, and O in Ti were investigated in the temperature range 600 to 1300 C. Diffusion couples were prepared by roll-bonding or press-bonding techniques. Electron microprobe methods were used to determine the penetration of the substitutionally dissolved solutes; vacuum fusion analysis was used to determine the penetration of interstitially dissolved O. The electron microprobe analysis could not be ... |
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| NONDESTRUCTIVE METHODS OF EVALUATING COATING-METAL BONDS |
15 JUL 1962 |
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| Authors:
A. M. BAUMANIS ; w. e. lawrie; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| STUDIES OF THE BRITTLE BEHAVIOR OF CERAMIC MATERIALS |
APR 1962 |
522 pages |
| Authors:
Nicholas A. Weil; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Ide tifi rs: Crystal dislocations. Extensive research on factors influencing the behavior of brittle non-metallic ceramics was undertaken. General information on the forms of Al2O3 and MgO studied and preliminary work on the effect of porosity on the fracture strength of Lucalox (Al2O3) are presented. Individual problem areas were attacked on separate task programs: (1) Effect of structural size (the zero strength); (2) Effects of strain rate; (3) Effect of ... |
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| RESEARCH AND DEVELOPMENT OF DESIGN CONCEPTS FOR SEALING APPLICATIONS IN AEROSPACE VEHICLE CABINS |
Feb 1962 |
78 pages |
| Authors:
JOSEPH S ISLINGER; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| bration, Abrasion, Stability, Space environmen tal conditions, Pressure.) (Design of Sealing techniques for Spaceships, Satellite vehicles.) Near absolute sealing techniques are described for small openings, such as for electrical conductors, and hatches in the walls of flight vehicle cabins. The need for absolute sealing stems from the requirement of a habitable environment in such vehicles for as long as one year under differential pressure and temperature extremes from -100 to ... |
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| TOXICOLOGY OF AURIN TRICARBOXYLIC ACID AND ITS ANTIDOTAL EFFECTIVENESS AGAINST BERYLLIUM |
DEC 1961 |
32 pages |
| Authors:
Maurice E. King; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Evaluation of Effects of Decarburization on Mechanical Properties of X200 Steel At Various Carbon Levels--Part II--Correlation of Results from Pressure Vessel Tests and Laboratory Tests Designed to Evaluate Notch Properties and Biaxial Properties of High- |
25 SEP 61 |
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| Authors:
J. P. Sheehan; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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 | Part I reports the combined effects of carbon content and depth of decarburization upon tensile properties, biaxial bulge properties, and fracture toughness of United States Steel Airsteel X200 in sheet form. Based upon the results of center-notch tensile and instrumented bend tests, the steels with lower carbon content and uniform carbon through the sheet thickness have better fracture toughness than higher carbon steels with surface decarburization at equivalent yield strengths. ... |
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| Measurement of Thermal Properties |
Jul 1961 |
137 pages |
| Authors:
I B Fieldhouse; J I Lang; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| The purpose of this investigation has been to measure the thermal Conductivity, specific heat, and linear coefficient of thermal expansion of particular materials. |
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| Propagation of Pressure Waves in a Mixture of Water and Stream |
JAN 1961 |
91 pages |
| Authors:
H. B. Karplus; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| The velocity of sound in mixtures of water and steam has been computed from the slope of the lines of equal entropy over a wide range of ambient conditions up to the critical point. The sound velocity is lower in the mixture than in either constituent It changes discontinuously on transition to the single phase in wet steam with just a trace of liquid The velocity is about 10 per ... |
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| SOUND PROPAGATION NEAR THE EARTH'S SURFACE AS INFLUENCED BY WEATHER CONDITIONS. Part 4. |
JAN 1961 |
1 pages |
| Authors:
H.J. SABINE; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| SOUND PROPAGATION NEAR THE EARTH'S SURFACE AS INFLUENCED BY WEATHER CONDITIONS. Part 3 |
JAN 1961 |
1 pages |
| Authors:
H.J. SABINE; V.J. RAELSON; M.D. BURKHARD; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| SOUND PROPAGATION NEAR THE EARTH'S SURFACE AS INFLUENCED BY WEATHER CONDITIONS. Part 2. |
JAN 1961 |
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| Authors:
M.D. BURKHARD; H.B. KARPLUS; H.J. SABINE; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| A MECHANISM FOR STRESS-CORROSION EMBRITTLEMENT |
14 SEP 1960 |
27 pages |
| Authors:
ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| THE INTERACTION OF BURIED STRUCTURES WITH GROUND SHOCK OF CONCEPTS OF PRELIMINARY DESIGN OF STRUCTURE PROJECTS FOR UNDERGROUND NUCLEAR DETONATIONS. APPENDIX B, |
JAN 1960 |
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| Authors:
A. H. Wiedermann; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| This report presents a theory or concept which can be used to estimate the forces acting on a buried structure when the structure is subjected to a ground shock wave. This work is intended to be applicable primarily for the type of rock found at the Nevada Test Site, such as white or reddish tuff. A discussion of the free field variables is given together with an idealization of the ... |
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| THERMOPHYSICAL PROPERTIES OF SOLID MATERIALS. VOLUME I. ELEMENTS. ( MELTING TEMPERATURE ABOVE 1000 F )., |
1960 |
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| Authors:
A. Goldsmith; T. E. Waterman; H. J. Hirschhorn; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| THERMOPHYSICAL PROPERTIES OF SOLID MATERIALS. VOLUME IV. CERMETS, INTERMETALLICS, POLYMERICS, AND COMPOSITES. |
1960 |
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| Authors:
A. Goldsmith; T. E. Waterman; H. J. Hirschhorn; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Point Source Explosion in a Solid |
NOV 1959 |
113 pages |
| Authors:
T. A. Zaker; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| This report presents an approximate theory of the growth of a point source explosion in an infinite solid or liquid medium in the range of shock pressure below that required to induce a physical change of phase of the material, and above pressures at which the wave propagation can be considered acoustic. The analysis is based on the characterization of the shock state locus for the material by a general ... |
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| EXCESS NOISE IN SEMICONDUCTORS |
22 OCT 1959 |
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| Authors:
James J. Brophy; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| REVISION OF STANDARDS FOR MEASUREMENTS OF SHIELDING EFFECTIVENESS OF ENCLOSURES |
Oct 1959 |
35 pages |
| Authors:
D P Kanellakos; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Theoretical and experimental results obtained during the research program indicate that tests should be performed in three frequency ranges: at 15 kilocycles, at the lowest natural resonant frequency of the enclosure, and near 9 kilomegacycles. The proposed revised test standards which emerged out of the work performed during this program are given in subsequent sections of this report. |
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| STUDY OF MASS FLOWMETERS. |
15 JUL 1959 |
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| Authors:
C. C. Miesse; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Part I contains a survey of mass flowmeters, including volumetric meters with automatic temperature-dependent density compensation, transverse momentum-type flowmeters, and other types of flowmeters which can be adapted to the measurement of mass flow. As a result of this survey it was concluded that volumetric meters with density compensation are inadequate for nonuniform mass flow, transverse momentum-type flowmeters are well-suited for mass flow measurement, and the more exotic device require ... |
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| REVISION OF STANDARDS FOR MEASUREMENTS OF SHIELDING EFFECTIVENESS OF ENCLOSURES |
Jul 1959 |
65 pages |
| Authors:
ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| A new method for evaluating shielded enclosures using low-impedance, low-frequency fields is under investigation. This method involves the use of two large rectangular transmitting loops which surround and 'immerse' the enclosure in an essentially magnetic field. An average value of the field penetrating the enclosure is obtained using a small pick-up loop in the center of the shielded enclosure. In addition, a small loop probe is used to explore the ... |
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| Shock Impingement Experiments on Crushable Solids |
JUN 1959 |
100 pages |
| Authors:
P. Lieberman; T. A. Zaker; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| A 2-in. inside diameter shock tube was used to generate strong flat- topped shock waves in argon for impingement against cylindrical specimens of celotex, redwood, and sugar pine up to 6 in. in length. Shock pressures up to 120 atmospheres were induced in the specimens immediately following impingement. Piezoelectric crystal pressure sensors were used to record pressure-time histories in the gas upstream of the gas-solid interface. ... |
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| Methods and Controls for Producing Castable Dies for Forging Steel and Titanium Alloys. |
APR 1959 |
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| Authors:
Andrew H. Murphy; Harry P. Nichols; Paul R. Gouwens; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| REVISION OF STANDARDS FOR ATTENUATION MEASUREMENTS OF SHIELDED ENCLOSURES |
Apr 1959 |
78 pages |
| Authors:
ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| The program consists of theoretical and experimental investigations leading to an improved standard for testing shielded enclosures in the frequency range of 14 kilocycles to 10,000 megacycles. The improved standard is being formulated in terms of tests at approximately 14 kilocycles, in the neighborhood of the resonant frequencies of the room, and at 10,000 megacycles. The reasons for choosing these frequencies are; (1) shielding against low-frequency, low- impedance fields is ... |
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| REVISION OF STANDARDS FOR ATTENUATION MEASUREMENTS OF SHIELDED ENCLOSURES |
13 Jan 1959 |
44 pages |
| Authors:
L C Peach; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| This report covers the work done during the second quarter of a one- year research program which began on 18 June 1958. The program consists of theoretical and experimental investigation leading to an improved standard for testing shielded enclosures in the frequency range of 14 kilocycles to 10,000 megacycles. The similarity between plane-wave propagation and propagation in a transmission line makes it possible to apply the results of transmission-line theory ... |
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| REVISION OF STANDARDS FOR ATTENUATION MEASUREMENTS OF SHIELDED ENCLOSURES |
30 Sep 1958 |
9 pages |
| Authors:
L C Peach; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| The purpose of this research is to develop improved techniques for measuring the effectiveness of shielded enclosures in the frequency range 14 kilocycles to 10,000 megacycles per second and to provide recommendations for standard methods of evaluating such enclosures. |
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| EVALUATION OF AN UNDERWATER HIGH VELOCITY MISSILE (HYDRODUCT AND HYDRODUCTOR) |
SEP 1958 |
40 pages |
| Authors:
D.S. HACKER; P. LIEBERMAN; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Operation PLUMBBOB. Nevada Test Site. May-October 1957, Project 30.5a. Dome-Structure Response Instrumentation. |
JUL 1957 |
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| Authors:
G. H. Brittain; E. H. Scharres; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| INVESTIGATION OF LOSSY MATERIALS FOR LOW PASS DISSIPATIVE TYPE FILTERS |
15 DEC 1956 |
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| Authors:
R.M. JANOWIAK; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| DEVELOPMENT OF TITANIUM-BASE ALLOYS FOR ELEVATED TEMPERATURE APPLICATION |
MAY 1956 |
1 pages |
| Authors:
WILLIAM F. CAREW; Frank A. Crossley; DONALD J. MCPHERSON; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| TITANIUM ALLOYS FOR ELEVATED TEMPERATURE APPLICATION |
JUL 1955 |
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| Authors:
W.F. CAREW; F.A. CROSSLEY; D.J. MCPHERSON; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Operation WIGWAM. Project 4.4. Close-in Time of Arrival of Underwater Shock Wave, |
MAY 1955 |
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| Authors:
F. B. Porzel; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| STUDIES OF PHASE RELATIONSHIPS AND TRANSFORMATION PROCESSES OF TITANIUM-ALLOY SYSTEMS |
OCT 1954 |
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| Authors:
DONALD J. MCPHERSON; WILLIAM ROSTOKER; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| INVESTIGATION OF NOISE GENERATED BY ELECTRICAL SLIP RINGS |
01 APR 1954 |
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| Authors:
GEORGE A. FORSTER; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| DEVELOPMENT OF TEMPERATURE-SENSING ELEMENTS FOR JET ENGINES |
APR 1952 |
22 pages |
| Authors:
GARY STEVEN; W. C. TROY; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| The thermoelectric characteristics were determined for the thermcouple MoSi2/Pt and ZrB2/Pt. Instability of emf output disqualifies these combinations from high temperature application in jet engine control. Chromel-alumel thermocouples were febricated with various shapes of the hot junction. The design was intended to achieve rapid heat transfer from the gas stream to the metal and adequate structural strength of the assembly. Characteristic response times were determined in a hot gas jet ... |
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| Achromatization of Debye-Scherrer Lines |
APR 1951 |
21 pages |
| Authors:
Hans Ekstein; Stanley Siegel; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| A method is described for reducing the width of a Debye-Scherrer line produced by diffraction from a polycrystalline medium, if this width is due to the spectral impurity of the primary characteristic radiation. In this method, a diverging polychromatic beam is allowed to fall on the plane surface of a single crystal. The beam diffracted by this crystal will diverge and will contain a bundle of rays whose ... |
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| AXIALLY SYMMETRIC FREE STREAMLINE FLOW ABOUT TANDEM DISCS - A THESIS, |
JAN 1951 |
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| Authors:
Ernest Adolph Beunauer; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| SURVEY OF ELECTRICAL POWER SOURCES, |
31 AUG 1946 |
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| Authors:
L. W. MATSCH; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| The survey consists of a search of periodicals, patents and other sources with brief abstracts of the pertinent items to be followed with a quantitative study and appraisal of the various methods found. The search of periodicals and patents has been started and will approach completion some time during the next three-month period. The quantitative study and appraisal have also been started and will continue. Later in the program a ... |
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| Fiber-reinforced structural materials. |
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| Authors:
D. W. Levinson; ARMOUR RESEARCH FOUNDATION CHICAGO IL
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| Fiber reinforced materials, both organic and inorganic are discussed from the standpoint of the relationship between constitution and properties. Current applications are discussed, and possibilities for future special purpose and general applications are considered. (Author, modified). ANNOTATION: Fiber-reinforced structural materials. |
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Reports by Corporate Author
