61 resultados para Niobium carbide. 15Kh2MFA ferritic steel. Powder metallurgy. High energy milling and composite materials

em University of Michigan


Relevância:

100.00% 100.00%

Publicador:

Resumo:

Work performed at the University of California.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Bibliographical footnotes.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

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

Relevância:

100.00% 100.00%

Publicador:

Resumo:

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.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

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.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

"Contract AT-30-1 GEN 366."

Relevância:

100.00% 100.00%

Publicador:

Resumo:

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

Relevância:

100.00% 100.00%

Publicador:

Resumo:

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

Relevância:

100.00% 100.00%

Publicador:

Resumo:

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

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Principles of iron and steel manufacture.--Steel castings.--Steel hardening metals.--Development and use of high-speed steel.--Hardening steel, by E.R. Markham.--Case-hardening.--The Brinell method of testing the hardness of metals, by E. Oberg.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

The literature has been searched for references pertaining to high energy reactions of interest to nuclear chemists. Nuclear Science Abstracts was the main source of references and wherever possible the complete abstract was retained.