Profiling of Fiber Texture Gradients by Anomalous X-ray Diffraction

2008 ◽  
pp. 343-352
Author(s):  
M. Birkholz ◽  
N. Darowski ◽  
I. Zizak
Keyword(s):  
Fiber Texture ◽  
X Ray Diffraction ◽  
X Ray

Stress and Texture Analysis in Thin Films and Coatings by X-Ray Diffraction

2006 ◽  
Vol 514-516 ◽  
pp. 1613-1617
Author(s):  
J.C.P. Pina ◽  
Maria José Marques ◽  
J.M.M. dos Santos ◽  
A. Morão Dias
Keyword(s):  
Thin Films ◽  
Crystallographic Texture ◽  
Fiber Texture ◽  
X Ray Diffraction ◽  
X Ray ◽  
Tensile Stresses ◽  
Aluminum Coatings ◽  
Annealing Temperatures ◽  
Diffraction Geometry ◽  
Chromium Films

The thin and textured coatings present a double difficulty for characterization by conventional X-ray diffraction. Their shallow depth reduces the diffracted intensity and allows the interference of the underlying material. Frequently they present a crystallographic texture which limits the number of orientations that provide good intensity and induces anisotropy effects on their mechanical behavior. Reliable results can be determined using diffraction geometry of lowincidence angle. This paper describes the application of the technique to several films, characterized by thicknesses of the order of 1 μm and crystallographic textures. Examples are proposed of chromium films applied by PVD on molybdenum substrates, decorative electroplated coatings, and aluminum coatings used for interconnections in microelectronic circuits. The Cr films are 1.5 μm thick and exhibit a strong <100> fiber texture. The decorative coatings were studied both on the nickel undercoat and in the Cr top layer. Results are presented for chromium where tensile stresses and a <110> fiber texture were observed. The Al films are 1.0 μm thick. Some samples were heattreated at different annealing temperatures. Tensile stresses were always observed, which increase in the annealed samples.

Highly Supersaturated, Highly Strained Sputtered Ag-Co and Ag-Ni Layers

1997 ◽  
Vol 472 ◽  
Author(s):  
L. Velterop ◽  
A. Buis ◽  
R. Delhez ◽  
Th.H. de Keijser ◽  
E.J. Mittemeijer ◽  
...  
Keyword(s):  
Annealing Treatment ◽  
Fiber Texture ◽  
Spherical Particles ◽  
Layer Surface ◽  
X Ray Diffraction ◽  
X Ray ◽  
Twinning Plane ◽  
Prepared State ◽  
Oriented Parallel ◽  
Highly Strained

ABSTRACTThin Ag-Ni and Ag-Co layers with compositions of 0, 15, 22 to 28 at% Ni or Co were made by magnetron sputtering. TEM experiments revealed that the layers exhibited a {111} fiber texture with a high density of twins, always with the twinning plane parallel to the layer surface. X-ray diffraction and TEM results indicate that all Ni or Co is dissolved in the Ag, although some compositional inhomogeneity occurs: the layers are highly supersaturated with Ni or Co. Unlike the pure Ag layer, the Ag-Ni and Ag-Co layers exhibited high strains in the as prepared state.Upon annealing Ni or Co precipitated. The Ni precipitates were small, spherical particles oriented parallel to the surrounding Ag. The strains in the Ag-Ni and Ag-Co layers after annealing were less than the calculated thermal strains, but they were larger than the strain in the pure Ag layer after an equal annealing treatment.

The In Situ Study on the Micro-Structural Characters of IF Steel at Early Stage of Recrystallization Using High-Energy X-Ray

2008 ◽  
Vol 575-578 ◽  
pp. 972-977
Author(s):  
He Tong ◽  
Yan Dong Liu ◽  
Q.W. Jiang ◽  
Y. Ren ◽  
G. Wang ◽  
...  
Keyword(s):  
Annealing Temperature ◽  
Early Stage ◽  
High Energy ◽  
Fiber Texture ◽  
Interstitial Free ◽  
If Steel ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cold Rolled

High-energy synchrotron diffraction offers great potential for experimental study of recrystallization kinetics. A fine experimental design to study the recrystallization mechanism of Interstitial Free (IF) steel was implemented in this work. In-situ annealing process of cold-rolled IF steel with 80% reduction was observed using high-energy X-ray diffraction. Results show that, the diffraction intensity of {001}<110> and {112}<110> belong to α-fiber texture component decreased with the annealing temperature increased while {111}<110> did nearly not change and {111}<112> increased; the FMTH decreasing and d-space changing with annealing temperature increasing indicated that the residual stress relaxed completely during recovery.

scholarly journals Ni-Mn-Ga films in the austenite and the martensite structures at room temperature: Uniaxial texturation and epitaxial growth

2009 ◽  
Vol 1200 ◽  
Author(s):  
Jérémy Tillier ◽  
Antinéa Einig ◽  
Daniel Bourgault ◽  
Philippe Odier ◽  
Luc Ortega ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Room Temperature ◽  
Vacuum Annealing ◽  
Sacrificial Layer ◽  
Epitaxial Films ◽  
Fiber Texture ◽  
X Ray Diffraction ◽  
Dc Magnetron Sputtering ◽  
X Ray ◽  
Scanning Electron

AbstractNi-Mn-Ga films in the austenite and the martensite structures at room temperature have been obtained using the DC magnetron sputtering technique. Two elaboration processes were studied. A first batch of samples was deposited using a resist sacrificial layer in order to release the film from the substrate before vacuum annealing. This process leads to polycrystalline films with a strong (022) fiber texture. The martensitic phase transformation of such polycrystalline freestanding films has been studied by optical and scanning electron microscopy. A second batch of samples was grown epitaxially on (100)MgO substrates using different deposition temperatures. The texture has been analyzed with four-circle X-ray diffraction. Epitaxial films crystallized both in the austenite and the martensite structures at room temperature have been studied.

Thermal and Electromigration-Induced Strains in Copper Conductor Lines: X-ray Microbeam Measurements and Analysis

2006 ◽  
Vol 914 ◽  
Author(s):  
G. Wang ◽  
H. Zhang ◽  
G. S. Cargill III ◽  
C. -K. Hu ◽  
Y. Ge ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Fiber Texture ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
Interface Diffusion ◽  
X Ray ◽  
Copper Conductor ◽  
Random Texture ◽  
Diffusion Paths ◽  
Low K

AbstractWe have carried out measurements of electromigration-induced strains in copper conductor lines using microbeam energy dispersive x-ray diffraction. Strains developed in random texture damascene Cu 2μm-wide, 0.16 μm-thick conductor lines with TaN liners in low-k dielectric during electromigration at 350°C are much smaller than electromigration-induced strains in (111) fiber texture Al-on-Si, 10μm-wide, SiO2 passivated conductor lines. The reasons for these differences in electromigration behavior may involve the different roles of grain boundary and interface diffusion paths and the different passivation structures and materials for the two types of samples.

Effect of Aluminum Content on Texture Formation Behaviors in Magnesium Alloy

2016 ◽  
Vol 879 ◽  
pp. 1449-1453 ◽  
Author(s):  
Min Soo Park ◽  
Hyung Gyun Park ◽  
Jun Ho Choi ◽  
Kwon Hoo Kim
Keyword(s):  
Magnesium Alloy ◽  
Aluminum Content ◽  
Orientation Distribution ◽  
Solute Concentration ◽  
Fiber Texture ◽  
Compression Tests ◽  
Basal Texture ◽  
X Ray Diffraction ◽  
X Ray ◽  
Main Components

In order to understand the effects of the solute element and its concentration on the formation of texture, uniaxial compression tests were carried out at various deformation conditions with different aluminum solute concentration in rolled AZ magnesium alloy (AZ31, AZ61, AZ91). To clarify the texture measurements and crystal orientation distribution, X-ray diffraction methods were conducted on mid plane section of the specimens. As a result in this study, the formation of fiber texture and occurrence of dynamic recrystallization were observed in all case of specimens. The main components and its sharpness of texture were varied depending on deformation conditions and Al concentrations. Especially, accumulation of basal texture was developed with an increasing of Al concentration.

Texture and Evolution of Recrystallization in Low Carbon Steel Wire

2006 ◽  
Vol 514-516 ◽  
pp. 554-558 ◽  
Author(s):  
Mosbah Zidani ◽  
Zakaria Boumerzoug ◽  
Thierry Baudin ◽  
Richard Penelle
Keyword(s):  
Carbon Steel ◽  
Isothermal Annealing ◽  
Steel Wire ◽  
Low Carbon Steel ◽  
Structural Evolution ◽  
Wire Drawing ◽  
Fiber Texture ◽  
Low Carbon ◽  
X Ray Diffraction ◽  
X Ray

The effect of cold wire drawing on texture of industrial low carbon steel wire was investigated. On the other hand, the mechanism of recrystallization of drawn-wire was studied during different isothermal annealing below 723 °C. The structural evolution of wire was studied by optical microscopy, SEM, EBSD and X-Ray diffraction. From this study, a fiber texture was observed in deformed wire. However, a recrystallization reaction occurs after critical temperature during annealing.

Textured Coatings from Colloidal Suspensions of Faceted Oxide Microcrystals

1992 ◽  
Vol 286 ◽  
Author(s):  
Gregg.W. Steadman ◽  
J. R. Brewster ◽  
J. D. Budai ◽  
L. A. Boatner
Keyword(s):  
Particle Size ◽  
Colloidal Suspensions ◽  
Fiber Texture ◽  
Preferred Orientation ◽  
Morphological Properties ◽  
Size Distributions ◽  
X Ray Diffraction ◽  
Particle Size Distributions ◽  
X Ray ◽  
Flat Substrate

ABSTRACTThe morphological properties of cubic, faceted MgO microcrystals have been exploited in the formation of textured coatings. Coatings exhibiting a <100> “fiber” texture were formed by centrifugal sedimentation of colloidal suspensions onto a flat substrate. A decrease in the degree of preferred orientation in the coatings with increasing areal coverage of the particles was quantified for several particle-size distributions by using x-ray diffraction. Novel methods for the deposition of particles exhibiting an in-plane preferred orientation in addition to fiber texture have been investigated.

Stress Analysis in UMo-Al Fuel Using X-Ray Diffraction

2011 ◽  
Vol 681 ◽  
pp. 420-425
Author(s):  
Regis Kubler ◽  
Laurent Barrallier ◽  
Christophe Valot ◽  
Hervé Palancher ◽  
Olivier Boquet
Keyword(s):  
Ion Beam ◽  
Heavy Ion ◽  
Fiber Texture ◽  
X Ray Diffraction ◽  
Interaction Layer ◽  
X Ray ◽  
Irradiation Stress ◽  
Heavy Ion Beam ◽  
Al Matrix ◽  
Stress Analyses

UMo-Al specimens are analyzed using X-ray diffraction techniques. One specimen was partially irradiated using a heavy ion beam127I. Another specimen was thermally annealed 2h at 400°C. Those treatments result in the formation of an interaction layer between UMo particles and Al matrix. UMo, Al and UAl3phases are identified in the treated specimen using X-ray diffraction. Only aluminium phase exhibits a crystallographic fiber texture, the other phases having an isotropic crystallographic texture. X-ray stress analyses are performed. After irradiation, stress analyses show that UMo phase is in a compressive stress state whereas the stress level in the formed UAl3in the interaction layer is not that high.

Characterization of fiber texture by ω-scan x-ray diffraction

2009 ◽  
Vol 80 (9) ◽  
pp. 093903 ◽  
Author(s):  
W. D. Fei ◽  
C. Q. Liu ◽  
M. H. Ding ◽  
W. L. Li ◽  
L. D. Wang
Keyword(s):  
Fiber Texture ◽  
X Ray Diffraction ◽  
X Ray
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