3-Dimensional Characterization of Polycrystalline Bulk Materials Using High-Energy Synchrotron Radiation

2007 ◽  
pp. 2353-2358
Author(s):  
Ulrich Lienert ◽  
Jon Almer ◽  
Bo Jakobsen ◽  
Wolfgang Pantleon ◽  
Henning Friis Poulsen ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
High Energy ◽  
Bulk Materials ◽  
3 Dimensional

3-Dimensional Characterization of Polycrystalline Bulk Materials Using High-Energy Synchrotron Radiation

2007 ◽  
Vol 539-543 ◽  
pp. 2353-2358 ◽  
Author(s):  
Ulrich Lienert ◽  
Jonathan Almer ◽  
Bo Jakobsen ◽  
Wolfgang Pantleon ◽  
Henning Friis Poulsen ◽  
...  
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
High Energy ◽  
Mapping Technique ◽  
X Ray Diffraction ◽  
Bulk Materials ◽  
Reciprocal Space Mapping ◽  
3 Dimensional ◽  
Individual Grains

The implementation of 3-Dimensional X-Ray Diffraction (3DXRD) Microscopy at the Advanced Photon Source is described. The technique enables the non-destructive structural characterization of polycrystalline bulk materials and is therefore suitable for in situ studies during thermo-mechanical processing. High energy synchrotron radiation and area detectors are employed. First, a forward modeling approach for the reconstruction of grain boundaries from high resolution diffraction images is described. Second, a high resolution reciprocal space mapping technique of individual grains is presented.

scholarly journals Local Structural Characterization within Polycrystalline Bulk Materials by High Energy Synchrotron Radiation

2000 ◽  
Vol 56 (s1) ◽  
pp. s51-s51
Author(s):  
U. Lienert ◽  
H. F. Poulsen ◽  
D. Juul Jensen ◽  
E. M. Lauridsen ◽  
S. F. Nielsen ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Structural Characterization ◽  
High Energy ◽  
Bulk Materials

Local Orientation Measurements in 3D

2005 ◽  
Vol 105 ◽  
pp. 49-54 ◽  
Author(s):  
Dorte Juul Jensen
Keyword(s):  
Tensile Deformation ◽  
High Energy ◽  
X Rays ◽  
X Ray Diffraction ◽  
3 Dimensional ◽  
Grain Structures ◽  
Individual Grains ◽  
Kinetics Of

The 3 Dimensional X-Ray Diffraction (3DXRD) method is presented and its potentials illustrated by examples. The 3DXRD method is based on diffraction of high energy X-rays and allows fast and nondestructive 3D characterization of the local distribution of crystallographic orientations in the bulk. The spatial resolution is about 1x5x5 µm but diffraction from microstructural elements as small as 100 nm may be monitored within suitable samples. As examples of the use of the 3DXRD method, it is chosen to present results for complete 3D characterization of grain structures, in-situ “filming” of the growth of one interior grain during recrystallization, recrystallization kinetics of individual grains and crystallographic rotations of individual grains during tensile deformation.

Characterization of New Bone Constituted at the Interface with Implant by Synchrotron Radiation

2010 ◽  
Vol 652 ◽  
pp. 185-190
Author(s):  
Abdelilah Benmarouane ◽  
Helene Citterio-Bigot ◽  
Pierre Millet ◽  
Thomas Buslaps ◽  
Alain Lodini
Keyword(s):  
Synchrotron Radiation ◽  
Fracture Resistance ◽  
High Energy ◽  
Medical Field ◽  
Therapeutic Success ◽  
Commercial Success ◽  
Natural Bone ◽  
Orthopedic Applications

Technology developments of implant composition and manufacture have been used in the medical field. Several different implants have been developed with varying degrees of commercial success. As a long-term establishment is a measure of the therapeutic success, it is necessary to use biocompatible implants in order to have good mechanical and fracture resistance of new bone reconstructed at the interface with the implant. Titanium (Ti-Al-4V) implants coated with hydroxyapatite (HAp), Ca10 (PO4)6 (OH)2 are widely used in orthopedic applications in order to obtain a stable and functional direct connection between the bone and the implant. At the implant-bone interface the new bone reconstituted after implantation must have the same orientation as the natural bone in order to accept the implant. Therefore we studied the texture and the crystallinity of the new bone crystals reconstituted at the interface applying by high-energy synchrotron radiation on beamline ID15 at ESRF in Grenoble, France.

Nonimaging characterization of imperfect single crystals by means of a three‐crystal diffractometer for high energy synchrotron radiation

1993 ◽  
Vol 73 (8) ◽  
pp. 3680-3684 ◽  
Author(s):  
R. Bouchard ◽  
S. Kouptsidis ◽  
H. B. Neumann ◽  
T. Schmidt ◽  
J. R. Schneider
Keyword(s):  
Synchrotron Radiation ◽  
Single Crystals ◽  
High Energy

A Stationary Solution of High-Energy Electron Reflection (HEER) for An Arbitrary Surface

1990 ◽  
Vol 48 (2) ◽  
pp. 374-375
Author(s):  
YIQUN MA
Keyword(s):  
Stationary Solution ◽  
High Energy ◽  
Bloch Wave ◽  
Dynamical Theory ◽  
High Energy Electron ◽  
Bulk Materials ◽  
Periodic Surface ◽  
Electron Transmission ◽  
Electron Reflection ◽  
Long Time

For a long time, the development of dynamical theory for HEER has been stagnated for several reasons. Although the Bloch wave method is powerful for the understanding of physical insights of electron diffraction, particularly electron transmission diffraction, it is not readily available for the simulation of various surface imperfection in electron reflection diffraction since it is basically a method for bulk materials and perfect surface. When the multislice method due to Cowley & Moodie is used for electron reflection, the “edge effects” stand firmly in the way of reaching a stationary solution for HEER. The multislice method due to Maksym & Beeby is valid only for an 2-D periodic surface.Now, a method for solving stationary solution of HEER for an arbitrary surface is available, which is called the Edge Patching method in Multislice-Only mode (the EPMO method). The analytical basis for this method can be attributed to two important characters of HEER: 1) 2-D dependence of the wave fields and 2) the Picard iteractionlike character of multislice calculation due to Cowley and Moodie in the Bragg case.

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