Direct non-destructive observation of bulk nucleation in 30% deformed aluminum

2009 ◽  
Vol 61 (9) ◽  
pp. 875-878 ◽  
Author(s):  
S.S. West ◽  
S. Schmidt ◽  
H.O. Sørensen ◽  
G. Winther ◽  
H.F. Poulsen ◽  
...  
Keyword(s):  
Bulk Nucleation ◽  
Non Destructive

In Situ Investigation of Bulk Nucleation by X-Ray Diffraction

2004 ◽  
Vol 467-470 ◽  
pp. 81-86 ◽  
Author(s):  
A.W. Larsen ◽  
C. Gundlach ◽  
Henning Friis Poulsen ◽  
L. Margulies ◽  
Q. Xing ◽  
...  
Keyword(s):  
High Energy ◽  
Triple Junctions ◽  
X Ray Diffraction ◽  
Nucleation Kinetics ◽  
X Ray ◽  
Bulk Nucleation ◽  
In Situ Investigation ◽  
Cold Rolled ◽  
Non Destructive

A new method for in-situ studies of nucleation in bulk metals based on high energy synchrotron radiation is presented. Copper samples cold rolled 20% are investigated. The crystallographic orientations near triple junctions are characterized using non-destructive 3DXRD microscopy before, during, and after annealing for 1 hour at 290°C. This method allows in-situ identification of new nuclei and the deformed material, which spawns the nuclei. Also, since data is acquired during annealing nucleation kinetics can be studied.

Luminescence from individual dislocations in II-VI and III-V semiconductors

1991 ◽  
Vol 49 ◽  
pp. 834-835
Author(s):  
J W Steeds
Keyword(s):  
Group Iv ◽  
Luminescence Properties ◽  
Carrier Recombination ◽  
Transmission Electron ◽  
Wide Range ◽  
Basic Physics ◽  
Semiconducting Compounds ◽  
Diamond Group ◽  
Non Destructive ◽  
Technological Significance

There is a wide range of experimental results related to dislocations in diamond, group IV, II-VI, III-V semiconducting compounds, but few of these come from isolated, well-characterized individual dislocations. We are here concerned with only those results obtained in a transmission electron microscope so that the dislocations responsible were individually imaged. The luminescence properties of the dislocations were studied by cathodoluminescence performed at low temperatures (~30K) achieved by liquid helium cooling. Both spectra and monochromatic cathodoluminescence images have been obtained, in some cases as a function of temperature.There are two aspects of this work. One is mainly of technological significance. By understanding the luminescence properties of dislocations in epitaxial structures, future non-destructive evaluation will be enhanced. The second aim is to arrive at a good detailed understanding of the basic physics associated with carrier recombination near dislocations as revealed by local luminescence properties.

Forensic Identifications Aided by Scanning Electron Microscopy of Silicone-Epoxy Microreplicas of Calcified and Cornified Structures

1975 ◽  
Vol 33 ◽  
pp. 678-679 ◽  
Author(s):  
R.F. Sognnaes
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Forensic Science ◽  
George Washington ◽  
Epithelial Surface ◽  
Extended Application ◽  
Tissue Surfaces ◽  
Non Destructive ◽  
Scanning Electron ◽  
Surface Changes

Sufficient experience has been gained during the past five years to suggest an extended application of microreplication and scanning electron microscopy to problems of forensic science. The author's research was originally initiated with a view to develop a non-destructive method for identification of materials that went into objects of art, notably ivory and ivories. This was followed by a very specific application to the identification and duplication of the kinds of materials from animal teeth and tusks which two centuries ago went into the fabrication of the ivory dentures of George Washington. Subsequently it became apparent that a similar method of microreplication and SEM examination offered promise for a whole series of problems pertinent to art, technology and science. Furthermore, what began primarily as an application to solid substances has turned out to be similarly applicable to soft tissue surfaces such as mucous membranes and skin, even in cases of acute, chronic and precancerous epithelial surface changes, and to post-mortem identification of specific structures pertinent to forensic science.

Non destructive testing of works of art by terahertz analysis

2013 ◽  
Vol 64 (2) ◽  
pp. 21001 ◽  
Author(s):  
Jean-Luc Bodnar ◽  
Jean-Jacques Metayer ◽  
Kamel Mouhoubi ◽  
Vincent Detalle
Keyword(s):  
Non Destructive Testing ◽  
Destructive Testing ◽  
Works Of Art ◽  
Non Destructive

Procédures, méthodes et résultats de la métallographie non-destructive

1984 ◽  
Vol 72 (8-9) ◽  
pp. 339-343
Author(s):  
René Hoeg ◽  
Lars Taarnskov
Keyword(s):  
Non Destructive

Analyse non destructive d’objets métalliques anciens

1953 ◽  
Vol 50 (2) ◽  
pp. 136-138 ◽  
Author(s):  
Georges Ambrosino ◽  
Pierre Pindrus
Keyword(s):  
Non Destructive

Inspection non destructive en ligne de la totalité de la surface des brames de coulée continue

1993 ◽  
Vol 90 (6) ◽  
pp. 823-828
Author(s):  
M. Mayos ◽  
J.M. Turón ◽  
P. Alexandre ◽  
J.L. Salon ◽  
M. Depeyris ◽  
...  
Keyword(s):  
Non Destructive
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