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Positron Annihilation Meanlife And Defects Created By Heat Or Deformation In Aluminum Titanium And Their Alloys And Nickel Base Superalloys
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Book Synopsis Positron Annihilation Meanlife and Defects Created by Heat Or Deformation in Aluminum, Titanium and Their Alloys and Nickel Base Superalloys by : Shu-Jen Tao
Download or read book Positron Annihilation Meanlife and Defects Created by Heat Or Deformation in Aluminum, Titanium and Their Alloys and Nickel Base Superalloys written by Shu-Jen Tao and published by . This book was released on 1976 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: The positron annihilation meanlife change caused by defects created by heat treatment or deformation for aluminum, titanium and their alloys and some nickel base superalloys are described. Positron annihilation lifetime measurement can be used as a method to determine certain defects in these metals. The sensitivity and limitations of the method of positron annihilation lifetime measurement are briefly discussed. The direction of possible future research is also described. (Author).
Book Synopsis Positrons and Positronium by : Y. C. Jean
Download or read book Positrons and Positronium written by Y. C. Jean and published by Elsevier Publishing Company. This book was released on 1988 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1976-07 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study on the Use of Positron Annihilation as a Non-Destructive Evaluation Tool for Micro-Structure Defects in Aluminum, Titanium and Their Alloys and Nickel Base Superalloys by : Shu-Jen Tao
Download or read book A Study on the Use of Positron Annihilation as a Non-Destructive Evaluation Tool for Micro-Structure Defects in Aluminum, Titanium and Their Alloys and Nickel Base Superalloys written by Shu-Jen Tao and published by . This book was released on 1977 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work carried out during the three year 1973-1977 period on the evaluation of positron annihilation as a non-destructive evaluation tool for micro-structure defects in some engineering materials, such as aluminum, titanium and their alloys and nickel base superalloys are reported. Positron annihilation has been found to be useful as a non-destructive evaluation tool for microstructure defects in the engineering materials tested. However, the method used, positron lifetime measurement, is well established but relatively time consuming. Futher studies on more engineering materials with various kinds of microstructure defects using a relatively fast method, positron annihilation gamma-ray Doppler Broadening is recommended. (Author).
Book Synopsis Detection of Vacancy Concentration and Defects in Aluminum, Titanium and Their Alloys and Nickel Base Superalloys by Positron Annihilation by : Shu-Jen Tao
Download or read book Detection of Vacancy Concentration and Defects in Aluminum, Titanium and Their Alloys and Nickel Base Superalloys by Positron Annihilation written by Shu-Jen Tao and published by . This book was released on 1975 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: Positron annihilation has been used as a tool to study the effects of defects in crystalline solids in the realm of fundamental research for a long time. This paper reports an initial effort to evaluate the usefulness and the future development of positron annihilation as a tool in non-destructive evaluation, NDE. The metals studied included Al (99.99%), Al-1100, Al-2024, Ti-35A, Ti-6Al-4V, and nickel based superalloys, U-700 and M-200. The processes studied involve temperature change, work-hardening, stress-strain, creep and cyclic fatigue. The conclusion is that the process of positron annihilation is very sensitive to many kinds of defects in metals and that its potential as a tool of NDE is high. Certainly, more work is required to explore its full potential. A brief review describing the method of positron annihilation and its interaction with defects in metals is attached as an appendix.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1976 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1976 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The effect of plastic deformation on positron annihilation line shapes in a range of metals and alloys by : C.F. Coleman
Download or read book The effect of plastic deformation on positron annihilation line shapes in a range of metals and alloys written by C.F. Coleman and published by . This book was released on 1988 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation - ICPA-17 by : Zhi Quan Chen
Download or read book Positron Annihilation - ICPA-17 written by Zhi Quan Chen and published by Trans Tech Publications Ltd. This book was released on 2017-03-24 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some theoretical aspects, practical results and experimental techniques of use of the positron annihilation phenomena in the research of the structure, defects of structure and other properties of different materials and mediums are covered in this journal volume. It comprises the papers presented at the 17th International Conference on Positron Annihilation (ICPA-17, Wuhan, China, 20-25 September, 2015).
Book Synopsis Positron Annihilation Studies of Precipitation in Aluminum Base Alloys by : Subbaraman Panchanadeeswaran
Download or read book Positron Annihilation Studies of Precipitation in Aluminum Base Alloys written by Subbaraman Panchanadeeswaran and published by . This book was released on 1982 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation - ICPA-11 by : Yan Ching Jean
Download or read book Positron Annihilation - ICPA-11 written by Yan Ching Jean and published by Trans Tech Publications Ltd. This book was released on 1997-09-18 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt: For one and a half decades, the application of positron annihilation to condensed-matter physics concentrated on the study of the Fermi surfaces of metals and alloys. As other, often more powerful, techniques for performing this type of study were developed, it appeared that condensed-matter positron physics was going to be relegated to being a niche interest. However, the situation changed dramatically when it was found that measurements of positron annihilation in metals were sensitive to the structures of well-known defects. This discovery, and subsequent research made it a major tool in materials science. Volume is indexed by Thomson Reuters CPCI-S (WoS).
Book Synopsis Investigation of Defects in Deformed Metals by Positron Annihilation Technique by : B. Nielsen
Download or read book Investigation of Defects in Deformed Metals by Positron Annihilation Technique written by B. Nielsen and published by . This book was released on 1978 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation by : Werner Triftshauser
Download or read book Positron Annihilation written by Werner Triftshauser and published by . This book was released on 2001 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: When it comes to studying the structures and defects of materials, there is presently no technique that is superior to positron annihilation. The increasing demands for higher accuracy and reliability provide a constant stimulus to the field, and the present book relates the newest and most important scientific discoveries made in the field of positron annihilation.
Book Synopsis Positron Annihilation by : Toshio Hyodo
Download or read book Positron Annihilation written by Toshio Hyodo and published by . This book was released on 2004 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is no doubt that, when it comes to the study of the structures and defects of materials, there is presently no technique that rivals positron annihilation. The increasing demands for higher accuracy and reliability provide a constant stimulus to the field, and the present work presents the newest and most important scientific discoveries made in the field of positron annihilation. Many important new results concerning positron and positronium studies of nano-materials, defects, porous materials, low-k dielectrics, polymers, liquids, atomic physics and new instrumentation are reported in the present contributions; presented by experts from all over the world. There can be no better way of keeping up with this rapidly advancing field.
Book Synopsis Positron-annihilation Spectroscopy of Vacancy Defects in Aluminum by :
Download or read book Positron-annihilation Spectroscopy of Vacancy Defects in Aluminum written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Positron-annihilation characteristics in a monovacancy and a divacancy in aluminium have been calculated self-consistently using a local density functional formalism, into which the many-body enhancement effects have been incorporated. Results for the theoretical two-dimensional angular correlation of annihilation radiation spectra are compared to experimental results obtained from an aluminum single crystal at 20°C, where positrons annihilate from a Bloch-state, and at higher temperatures, 500°C and 630°C, where they annihilate primarily from vacancy-trapped states.
Book Synopsis Positron Annihilation at Voids in Quenched Aluminum by : Marc Kenneth Chason
Download or read book Positron Annihilation at Voids in Quenched Aluminum written by Marc Kenneth Chason and published by . This book was released on 1974 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Survey of Positron Annihilation Studies of Aluminium and Aluminium Alloys by : F. A. Smith
Download or read book A Survey of Positron Annihilation Studies of Aluminium and Aluminium Alloys written by F. A. Smith and published by . This book was released on 1984 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
