Improved Techniques for the Ultrasonic Measurement of Elastic Constants PDF Download
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Author: A. G. MARTIN
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
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Author: A. G. MARTIN
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
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Author: Trevor Flamino Melder
Publisher:
ISBN:
Category : Elastic analysis (Engineering)
Languages : en
Pages : 92
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Author: Rohn Truell
Publisher: Academic Press
ISBN: 148327599X
Category : Science
Languages : en
Pages : 479
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Book Description
Ultrasonic Methods in Solid State Physics is devoted to studies of energy loss and velocity of ultrasonic waves which have a bearing on present-day problems in solid-state physics. The discussion is particularly concerned with the type of investigation that can be carried out in the megacycle range of frequencies from a few megacycles to kilomegacycles; it deals almost entirely with short-duration pulse methods rather than with standing-wave methods. The book opens with a chapter on a classical treatment of wave propagation in solids. This is followed by separate chapters on methods and techniques of ultrasonic pulse echo measurements, and the physics of ultrasonically measurable properties of solids. It is hoped that this book will provide the reader with the special background necessary to read critically the many research papers and special articles concerned with the use of ultrasonic methods in solid state physics. The book is intended to help the person beginning work in this field. At the same time, it will also be useful to those actively involved in such work. An attempt has been made to provide a fairly general and unified treatment suitable for graduate students and others without extensive experience.
Author: Xinpeng Du
Publisher:
ISBN:
Category : Acoustic surface waves
Languages : en
Pages : 174
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Book Description
Polycrystalline samples of Ni, Al, Ta, Nb, Fe (bcc), Co (hcp) and ß-Sn (tetragonal) have been used to benchmark the measurement accuracy. The extracted elastic constants from our method are within 6.8% of the corresponding values obtained from single-crystal samples for all seven pure metals. This new method completely frees us from growing single crystals. The high spatial resolution feature (~20 microns) in tests makes it highly applicable in obtaining high throughput composition-dependent elastic constants through localized measurements on a diffusion couple. The power and versatility of this new method are illustrated with five measurement examples: (1) composition-dependent elastic constants from an Fe-Ni diffusion couple; (2) full elastic constants of Sn from its powders; (3) key elastic constants of the intermetallic compound Ni3Sn4 of the monoclinic crystalline symmetry; (4) full elastic constants of a polycrystalline Ni-based superalloy René 88DT; and (5) Young’s moduli of inorganic glass materials. Several appendixes are provided and attached at the end of this dissertation, including bulk acoustic wave modeling, surface acoustic wave modeling, the transformation of coordinate systems among the sample coordinate system, the crystalline coordinate system and the PDMS based coordinate system, and MATLAB coding used in this dissertation.
Author: Mahmoud Redwan Harmouche
Publisher:
ISBN:
Category : Physical constants
Languages : en
Pages : 290
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Author: Edward Schreiber
Publisher: McGraw-Hill Companies
ISBN:
Category : Science
Languages : en
Pages : 216
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Book Description
Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Author: Beverly Leonidas Cornwell
Publisher:
ISBN:
Category :
Languages : en
Pages : 170
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Author: Masahiko Hirao
Publisher: Springer
ISBN: 443156036X
Category : Technology & Engineering
Languages : en
Pages : 382
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Book Description
This second edition provides comprehensive information on electromagnetic acoustic transducers (EMATs), from the theory and physical principles of EMATs to the construction of systems and their applications to scientific and industrial ultrasonic measurements on materials. The original version has been complemented with selected ideas on ultrasonic measurement that have emerged since the first edition was released. The book is divided into four parts: PART I offers a self-contained description of the basic elements of coupling mechanisms along with the practical designing of EMATs for various purposes. Several implementations to compensate for EMATs’ low transfer efficiency are provided, along with useful tips on how to make an EMAT. PART II describes the principle of electromagnetic acoustic resonance (EMAR), which makes the most of EMATs’ contactless nature and is the most successful amplification mechanism for precise measurements of velocity and attenuation. PART III applies EMAR to studying physical acoustics. New measurements have emerged with regard to four major subjects: in situ monitoring of dislocation behavior, determination of anisotropic elastic constants, pointwise elasticity mapping (RUM), and acoustic nonlinearity evolution. PART IV deals with a variety of individual issues encountered in industrial applications, for which the EMATs are believed to be the best solutions. This is proven by a number of field applications.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 320
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Author: Gene Simmons
Publisher:
ISBN:
Category : Crystals
Languages : en
Pages : 278
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