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Author : B. F. Brown
Publisher : Unknown
Page : 34 pages
File Size : 48,6 Mb
Release : 1961
Category : Metallurgy
ISBN : MINN:31951D03744418B
Author : B. F. Brown
Publisher : Unknown
Page : 46 pages
File Size : 46,7 Mb
Release : 1960
Category : Electronic
ISBN : MINN:31951D037444199
The vapor pressure of each of the niobium-zinc compounds was measured as a function of temperature. The kinetics of formation of the niobiumzinc compounds on pure niobium from zinc vapor were investigated, and oxidation tests were made on several coatings applied with zinc vapor. The mechanisms involved and the kinetics of the removal of interstitial impurities from niobium by the niobium-zinc compounds were also studied. Further studies of the effects of alloying elements added to the zinc bath used to coat niobium by the dip process confirmed that small amounts of nickel and aluminum in the proper combination are beneficial. (Author).
Author : Carol Alnoth Krier
Publisher : Unknown
Page : 248 pages
File Size : 47,9 Mb
Release : 1961
Category : Heat resistant alloys
ISBN : UOM:39015095154806
Author : James Edward Campbell,H. B. Goodwin,H. J. Wagner,R. W. Douglass,B. C. Allen
Publisher : Unknown
Page : 106 pages
File Size : 48,9 Mb
Release : 1961
Category : Heat resistant alloys
ISBN : UOM:39015095150994
Author : F. F. Schmidt,D. J. Maykuth,H. R. Ogden
Publisher : Unknown
Page : 36 pages
File Size : 43,7 Mb
Release : 1964
Category : Heat resistant alloys
ISBN : UOM:39015095154517
Studies on the effects of heat-treating and testing environments for the refractory metals have been limited primarily to the unalloyed metals and a few alloys of columbium and molybdenum. Most of this work has relied on compositional changes as a means of assesing the effects of various environments on these materials. It has been shown that all of these materials are subject to contamination or purification in various test environments. The residual gases H2, CO(or N2), and H20, constitute the major sources of contamination when testing columbium and tantalum materials in vacua. Under the same conditions, molybdenum and molybdenum alloys containing carbon and reactive-metal additions are subject to serious decarburization. Nonreactive gaseous atmospheres also cause serious changes in material chemistry, since small quantities of noxious gases are contained in the atmosphere. Several promising methods of circumventing material chemistry changes during various longtime, high-temperature exposures are being used and/or evaluated. (Author).
Author : William D. Klopp,C. A. Krier
Publisher : Unknown
Page : 24 pages
File Size : 47,7 Mb
Release : 1961
Category : Niobium
ISBN : UOM:39015095152560
Author : Naval Research Laboratory (U.S.)
Publisher : Unknown
Page : 336 pages
File Size : 43,6 Mb
Release : 1962
Category : Naval research
ISBN : CUB:U183025990660
Author : U.S. Atomic Energy Commission
Publisher : Unknown
Page : 118 pages
File Size : 41,9 Mb
Release : 1963
Category : Molybdenum
ISBN : UOM:39015095050301
Author : Anonim
Publisher : Unknown
Page : 118 pages
File Size : 40,9 Mb
Release : 1963
Category : Energy development
ISBN : CORNELL:31924105642999
Author : Robert Isaac Jaffee
Publisher : Unknown
Page : 40 pages
File Size : 45,5 Mb
Release : 1959
Category : Heat resistant alloys
ISBN : UOM:39015095151810
Author : Robert E. Smallwood,American Society for Testing and Materials
Publisher : ASTM International
Page : 128 pages
File Size : 47,7 Mb
Release : 1984
Category : Technology & Engineering
ISBN : 0803102038
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 41,8 Mb
Release : 1966
Category : Electronic
ISBN : OCLC:925688837
Author : I. Machlin
Publisher : Springer Science & Business Media
Page : 493 pages
File Size : 54,7 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781468491203
This publication documents Proceedings of the Symposium on Metal lurgy and Technology of Refractory Metal Alloys, held in Washington, D.C. at the Washington Hilton Hotel on April 25-26, 1968, under sponsorship of the Refractory Metals Committee, Institute of Metals Division, of the Metallurgical Society of AIME, and the National Aeronautics and Space Administration. The Symposium presented critical reviews of selected topics in refractory metal alloys, thereby contributing to an in-depth understanding of the state-of-the-art, and establishing a base line for further research, development, and application. This Symposium is fifth in a series of conferences on refractory metals, sponsored by the Metallurgical Society of AlME. Publications issuing from the conferences are valuable technical and historical source books, tracing the evolution of refractory metals from early laboratory alloying studies to their present status as useful engineering materials. Refractory metals are arbitrarily defined by melting point. A 0 melting temperature of over 3500 F was selected as the minimum for this Symposium, thus excluding chromium and vanadium, which logically could be treated with other refractory metals in Groups VA and VIA of the periodic table. The Refractory Metals Committee is planning reviews of chromium and vanadium in subsequent conferences.
Author : Anonim
Publisher : Unknown
Page : 1412 pages
File Size : 47,5 Mb
Release : 1973
Category : Nuclear energy
ISBN : PSU:000047759558
Author : Anonim
Publisher : Unknown
Page : 176 pages
File Size : 44,6 Mb
Release : 1963
Category : Science
ISBN : UOM:39015086565564
