The powder metallurgy of uranium /

Uranium is a ductile metal and cannot be comminuted to a fine powder by any mechanical means such as crushing, milling or grinding. Uranium, however, reacts readily with hydrogen and forms UH3, which is a fine powder of less than 400 mesh screen size. The factors controlling the rats of the hydride formation are: (a) The surface area of the metal; (b) the temperature at which the reaction takes place; (c) the pressure of hydrogen. In order to increase the reaction area, one has to hydride small metal pieces rather than a single mass. The hydrogen reacts with uranium metal at temperatures as low as 100 deg to 1500 deg, and the reaction rate becomes quite rapid at approximately 225 deg C. The hydrogen for this purpose has to be of high purity and any small amount of oxygen in hydrogen delays the start of the reaction.

The development of uniform distributions of uranium in beryllium by means of powder metallurgy /

"Contract AT-30-1 GEN 366."

Powder metallurgy in Europe : a trip report /

"Contract AT-30-1-GEN-366."

Investigation of the powder metallurgy of thorium.

"Work performed under Contract No. AT-30-1-gen-366"--Page 2 of cover.

The powder metallurgy of zirconium-tin alloys.

"Contract AT-30-1-Gen-366."

Treatise on powder metallurgy.

Bibliographical footnotes.

Development of alloys having good high temperature properties through powder metallurgy techniques

"Materials Laboratory, Contract number AF 61(514)-1144, Project no. 7351."

Powder metallurgy; principles and methods.

Mode of access: Internet.

Evaluation of Horizons, Inc. Th metal powder : progress report no. 1 for February 18, 1954-March 4, 1954 /

Three samples of thorium powder as supplied by Horizons, Inc. of Cleveland, Ohio were compared. The powder was processed entirely without the use of protective atmospheres with the exception of the sintering which was performed in a tank argon atmosphere with a dew point of approximately -80°C and the hot-pressing which was carried out in vacuum. The equipment and procedures used for cold-pressing and sintering were identical to those used in the evaluation of Sylvania produced thorium powders. The hot-pressing was done with standard uranium hot-pressing equipment.

An investigation of the slip-casting mechanism as applied to stainless steel powder /

The slip-casting technique, which is successfully employed in the ceramic industry, was utilized to produce sintered stainless steel components experimentally. The procedure used is described, along with an evaluation of the physical and mechanical properties of the samples produced. Specimens were made with properties comparable to those of wrought stainless steel and of cold pressed and sintered steel powder.

Consumable electrode arc-melting of cold-compacted thorium powder /

The consumable electrode arc melting of cold-compacted thorium powder has been developed to produce dense, clean and soft ingots which can be hot rolled without cracking. By using a water-cooled copper crucible, contamination has been prevented and resultant ingots cleaner than the original powder have been produced.

Beryllium--fabrication and joining : a literature search /

This search, containing 128 references, was prepared to serve as a guide to the report literature on the fabrication and joining of beryllium. Studies on compacts and powder metallurgy are included. Articles selected from scientific journals and which appear in Nuclear Science Abstracts (NSA) are included. Reports are listed alpha-numerically under the issuing agency.

The process of pulse sintering /

"Contract AT-30-1-Gen-366."

Hot isostatic compaction of graphite /

"October 5, 1965."

Hot-pressing of electrolytic, dehydrided, and calcium-reduced thorium powders /

"Contract AT-30-1 GEN-366."