Development and Evaluation of High-Temperature Tungsten Alloys : Summary Report (open access)

Development and Evaluation of High-Temperature Tungsten Alloys : Summary Report

Abstract: "Tungsten-rich alloys, developed for use at temperatures up to 2000F, exhibit ductility, fabricability and joinability not found in commercially-available materials. An envelope type of microstructure was produced in compositions containing at least 90 wt% tungsten by liquid-phase sintering of cold-pressed powders in hydrogen. At room temperature the alloys could be rolled extensively, and tensile elongations up to 25% were noted. Strength properties of a W-Ni-Fe base were improved by small quaternary additions. The ultimate tensile strength of a 90W-4.8Ni-3.2Fe-2Ru alloy was 46,700 psi at 2000F, compared to 30,000 - 35,000 psi for unalloyed tungsten or W-Ni-Fe; the 100-hour stress-rupture strength at 1600F was 15,000 psi. Excellent joints were produced by spot welding and localized induction heating. The oxidation resistance of unprotected 90 wt% tungsten compositions was not significantly affected by alloying."
Date: November 12, 1959
Creator: Holtz, F. C. & Van Thyne, R. J.
System: The UNT Digital Library
An Improved Nuclear Density Gauge : Covering the Interval from October 2 to November 1, 1959 (open access)

An Improved Nuclear Density Gauge : Covering the Interval from October 2 to November 1, 1959

The following document is a note describing the process of building a nuclear density gauge and its improved features in comparison to previously reported density gauges.
Date: November 12, 1959
Creator: Burgwald, G. M. & Stone, C. A.
System: The UNT Digital Library
The Boron-Carbon System: Quarterly Report Number 2, August - October 1960 (open access)

The Boron-Carbon System: Quarterly Report Number 2, August - October 1960

Abstract: A definitive investigation of the boron-carbon equilibrium system is being made by X-ray diffraction, metallographic, and thermal analytical techniques. Additional baron-carbon alloys have been prepared by sintering and arc-melting compacts prepared from boron and high-purity graphite. Metallographic examinations of these alloys are in agreement with alloys previously preapred from lampblack. X-ray investigation of sintered compacts indicates that the solubility range of boron carbide extends almost to pure boron. Boron of various purities has been annealed for times up to four hours, but no structure other than beta-rhombohedral has been detected. Very high purity boron (10 ppm impurity) has been obtained for the study of allotropy and the equilibrium relationships at very dilute carbon contents.
Date: November 8, 1960
Creator: Elliott, Rodney P. & Van Thyne, R. J.
System: The UNT Digital Library
Improved Zirconium Alloys : A Summary of Recent Work in This Field (Interim Report) (open access)

Improved Zirconium Alloys : A Summary of Recent Work in This Field (Interim Report)

Abstract: "As part of a program entitled "Improved Zirconium Alloys" a brief summary of a present zirconium research at various organizations has been prepared. Information was obtained by telephone and personnel contact; and these discussions, along with the organization and personnel, are presented."
Date: November 8, 1960
Creator: Weinstein, Daniel & Van Thyne, R. J.
System: The UNT Digital Library
Research Study on Neutron Interactions in Matter as Related to Image Formation (open access)

Research Study on Neutron Interactions in Matter as Related to Image Formation

From abstract: "In this report we present data obtained with the optical simulation apparatus on image quality as a function of the parameters of neutron scattering and image detector resolution...Also included in this report is a brief description of a large area (5 inch diameter) neutron beam exposure facility being set up at the reactor for the phase three work."
Date: November 17, 1961
Creator: Watts, H. V. & Terrell, C. W.
System: The UNT Digital Library
Contaminant effects study : final report, January 5 to September 15, 1962 (open access)

Contaminant effects study : final report, January 5 to September 15, 1962

From abstract: "This report describes work done on ARF Project C 216 from January 5, 1962 to September 15, 1962. The objectives of the program include evolution of an analytical research program to evaluate effects of environment contributed contamination on precise devices"
Date: November 14, 1962
Creator: Lieberman, A.
System: The UNT Digital Library