Download or read book Initial Stages of Oxidation of Metals and Alloys Progress Report May 1 1980 April 30 1981 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of the oxidation kinetics of Ni-Fe alloys and of Be have been carried out over the past year. The majority of the alloy results are for the (100) surface of Fe40Ni60. Investigation of the clean surface over the temperature range up to approx. 900°C indicated only a slight enrichment in Fe relative to Ni compared to the bulk average composition. Under oxidizing conditions the situation is quite different; marked segregation of Fe occurs with the formation of iron oxide overlayers. The kinetics of this process have been studied using Auger spectroscopy and structural features of the overlayer observed by LEED. The LEED observations indicate the initial formation of (lll) oriented FeO on Fe40Ni60 (100); at greater oxygen exposures a new oxide structure, probably Fe3O4, develops with its (lll) plane parallel to the (100) substrate. With Be the room temperature oxidation has been investigated over the pressure range 10−7 to 10−9 mm Hg. Auger lineshape studies indicate that most of the Be spectrum can be accounted for by contributions from clean Be and BeO. Data on the kinetics at 300 K have been obtained. A research ellipsometer with rotating analyzer has been installed and interfaced to a computer system.
Download or read book Initial Stages of Oxidation of Metals and Alloys Progress Report August 1 1979 April 30 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental research program on metal surface oxidation has been initiated. Studies of Be and of Fe-Ni single crystal surfaces are underway using the techniques of Auger and electron loss spectroscopy and low energy electron diffraction. A detailed study of the Auger line shape from clean cleaved Be (0001) planes has provided a standard against which all previous work may be composed. Progress has been made in preparing clean Be surfaces by ion sputtering techniques, computer processing of Auger data and some preliminary LEED studies have been made both of clean and oxygen covered surfaces. A liquid nitrogen cold stage for ribbon type single crystal samples has been constructed. The composition of the (100) surface of a Ni-60, Fe-40 single crystal has been in vestigated over the temperature range from 25 to 900/sup 0/C. Under uhv conditions only very slight enrichment in Fe occurs. Preliminary studies have also been made of surface structure and of C and S segregation to this Fe-Ni (100) surface.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1983 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corrosion Abstracts written by and published by . This book was released on 1986 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1983 with total page 1600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1985 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1981 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1983 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Update written by and published by . This book was released on 1981 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1983 with total page 1144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book The Study of Diffusionless Phase Changes in Solid Metals and Alloys written by T. A. Read and published by . This book was released on 1954 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Oxidation of Metals and Alloys written by Erich Scheil and published by . This book was released on 1952 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reviews the various types of oxidation processes occurring with pure metals and gives explanations for the varying time-temperature-oxidation rate relations that exist for copper, tungsten, zinc, cadmium, and tantalum. The effect of shape and crystal structure on oxidation is discussed. Principles derived are applied to the oxidation of alloys.
Download or read book Energy a Continuing Bibliography with Indexes written by and published by . This book was released on 1982 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extended Abstracts written by Electrochemical Society and published by . This book was released on 1985 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
