Search references for GEOMETRICALLY NECESSARY-DISLOCATIONS. Phrases containing GEOMETRICALLY NECESSARY-DISLOCATIONS
See searches and references containing GEOMETRICALLY NECESSARY-DISLOCATIONS!GEOMETRICALLY NECESSARY-DISLOCATIONS
Geometrically necessary dislocations are like-signed dislocations needed to accommodate for plastic bending in a crystalline material. They are present
Geometrically necessary dislocations
Geometrically_necessary_dislocations
Linear crystallographic defect or irregularity
sessile dislocations which are immobile and glissile dislocations which are mobile. Examples of sessile dislocations are the stair-rod dislocation and the
Dislocation
Property of materials at small scales
stored dislocations (SSD) which are created by homogeneous strain and are dependent upon the material and processing conditions. Geometrically necessary dislocations
Indentation_size_effect
Topics referred to by the same term
Quebec Gemeinsame Normdatei (Integrated Authority File) Geometrically necessary dislocations Graduated neutral density filter Green New Deal Ground (electricity)
GND
Scanning electron microscopy technique
EBSD can also provide information about the density of geometrically necessary dislocations (GNDs). However, the lattice distortion is measured relative
Electron backscatter diffraction
Electron_backscatter_diffraction
Displacement between parts of a crystal along a crystallographic plane
predominantly single slip where geometrically necessary dislocations may not necessarily accumulate. Residual dislocation content does not distinguish between
Slip_(materials_science)
Component of shear stress necessary to initiate slip in a crystal
concentration will activate dislocation motion in the available glide planes. These dislocations are geometrically necessary to ensure that the strain in
Critical resolved shear stress
Critical_resolved_shear_stress
Non-reversible deformation of a solid material in response to applied forces
interiors will permit dislocation migration to the GB where many dislocations then pile up as geometrically necessary dislocations. This pile up corresponds
Plasticity_(physics)
Decomposed form of dislocation that occurs within a crystalline material
partial dislocations. The vector sum of the Burgers vectors of the partial dislocations is the Burgers vector of the extended dislocation. A dislocation will
Partial_dislocation
Alloy which returns to a preset shape when heated
"self-accommodating twinning" and is the twinning version of geometrically necessary dislocations. Since the shape memory alloy will be manufactured from a
Shape-memory_alloy
Nanoscale orientation mapping method
diffraction in a scanning electron microscope to quantify geometrically necessary dislocation density at the nanoscale". Ultramicroscopy. 197: 39–45. doi:10
Transmission Kikuchi diffraction
Transmission_Kikuchi_diffraction
Material testing procedure that makes a very small mark in a surface
with small indents, requiring "geometrically necessary dislocations". Another suggestion is that there may be no dislocations in the region being deformed
Nanoindentation
Deformation mechanism in crystallines
(help) Anderson, PM; Hirth, JP; Lothe, J. Theory of Straight Dislocations. Theory of dislocations. Wikimedia Commons has media related to Slip bands in metals
Slip_bands_in_metals
Hungarian-French materials scientist
; Beausir, B.; Fundenberger, J. J.; Hoffman, M. (2016). "Geometrically necessary dislocations favor the Taylor uniform deformation mode in ultra-fine-grained
Laszlo_S._Toth
British materials scientist and engineer
resolution electron backscatter diffraction. Stress fields and geometrically necessary dislocation density distributions near the head of a blocked slip band
Ben_Britton
German materials scientist (born 1965)
the indentation size effect through the measurement of the geometrically necessary dislocations beneath small indents of different depths using EBSD tomography"
Dierk_Raabe
British materials scientist
(2010-03-21). "Determination of elastic strain fields and geometrically necessary dislocation distributions near nanoindents using electron back scatter
Angus_J._Wilkinson
Ordered arrangement of atoms, ions, or molecules in a crystalline material
in the late 1960s. Dislocations in a crystal lattice are line defects that are associated with local stress fields. Dislocations allow shear at lower
Crystal_structure
Materials scientist
plasticity analysis of micro-deformation, lattice rotation and geometrically necessary dislocation density". Proceedings of the Royal Society A: Mathematical
Fionn_Dunne
Degree to which a material under stress irreversibly deforms before failure
more motion of dislocations when a stress is applied to the material. Thus, in materials with a lower amount of slip systems, dislocations are often pinned
Ductility
Property of solid materials under mechanical stress
are "bound" to the dislocations by the misfit can move along with edge dislocations as a "drag" on their motion if the dislocation motion or the creep
Creep_(deformation)
Alloy with higher durability than normal metals
family of dislocations are likely to decompose into partial dislocations in this alloy due to its low stacking fault energy, such as dislocations with burgers
Superalloy
Type of steel
modulus, b the Burgers vector of dislocations, and n the number of dislocations stored at the barriers. In the geometrical pile-up model developed for TWIP
TWIP_steel
Formation of 2D images using X-rays
Röntgendiagnose von Schulterluxationen" [For X-ray diagnosis of shoulder dislocations]. Chirurg (in German). 5: 702. Henry R Guly. "Foot Injuries". Royal College
Projectional_radiography
Process of forming new, defect-free crystal grains within a material
in the material as defects—particularly dislocations. The rearrangement or elimination of these dislocations will reduce the internal energy of the system
Recrystallization (metallurgy)
Recrystallization_(metallurgy)
Failure mechanism within deformed materials
micro-structure, distortion of grain structure and the generation and glide of dislocations all occur. The remainder of the plastic work done – which can be as much
Adiabatic_shear_band
X-ray imaging technique
obtain narrow, well-resolved images of dislocations, and to separate single dislocations even when the dislocation density in a material is rather high
Diffraction_topography
Major stage of a crystallization process
nucleation. The reason for such rapid growth is that real crystals contain dislocations and other defects, which act as a catalyst for the addition of particles
Crystal_growth
Radiometric tool for geochronology
Natural crystalline materials contain imperfections: impurity ions, stress dislocations, and other phenomena that disturb the regularity of the electric field
Thermoluminescence_dating
Solid material with highly ordered microscopic structure
extra atom squeezed in where it does not fit), and dislocations (see figure at right). Dislocations are especially important in materials science, because
Crystal
History of chemical crystallography to 1895
(1897). "A Mechanical Cause of Homogeneity of structures and symmetry geometrically investigated: with special application to crystals and to chemical combination"
Chemical crystallography before X-rays
Chemical_crystallography_before_X-rays
Medical condition
hospitalization unless tongue swelling is severe. Good oral hygiene is necessary, including thorough tooth brushing at least twice a day, and flossing
Glossitis
1845–1852 mass starvation in Ireland
by 5%. Application of Thomas Malthus's idea of population expanding geometrically while resources increase arithmetically was popular during the famines
Great_Famine_(Ireland)
Metal forming process
dislocations at the surface and thereby reduces the possibility of formation of Lüders bands. To avoid the formation of Lüders bands it is necessary to
Rolling_(metalworking)
Multivalued function in mathematics
due to thermodynamic principles the film will develop crystallographic dislocations in order to minimise the elastic energy stored in the films. Prior to
Lambert_W_function
Aboriginal Australians and Torres Strait Islander peoples
Europeans; being wholy unacquainted not only with the superfluous but the necessary conveniencies so much sought after in Europe, they are happy in not knowing
Indigenous_Australians
Visible regularity of form found in the natural world
example, a crystal is perfect when it has no structural defects such as dislocations and is fully symmetric. Exact mathematical perfection can only approximate
Patterns_in_nature
Narrow zone of intense shear strain during material deformation
polycrystalline metals and alloys usually deform via shear caused by dislocations, twins, and / or shear bands. This leads to pronounced plastic anisotropy
Shear_band
Suvin's cited definition, dating from 1972, is: "a literary genre whose necessary and sufficient conditions are the presence and interaction of estrangement
Definitions of science fiction
Definitions_of_science_fiction
Initiation and propagation of cracks in a material due to cyclic loading
microstructural change within the material, but rather a propagation of dislocations within the material. Instead of a smooth interface, the intrusions and
Fatigue_(material)
American-Russian visual artist
accessible for people who visited its reading room any time they felt it is necessary for them. In this project was explored a correlation between reality and
Svetlana_Kopystiansky
Study of fracture surface of ploymers
microscopic imperfections found in the material. These defects namely dislocations, crystalline boundaries, amorphous interlayers and block structure can
Fracture_in_polymers
Force resisting sliding motion
undergoes deformation. The best understood case is the drag force on dislocations due to atomic vibrations (phonon drag), although electron interactions
Friction
Genus of Dinosaur (fossil)
largely quadrupedal, juveniles had the capacity to walk around bipedally if necessary. They were characterized by a proportionally large skull, short and stiff
Protoceratops
Substance engineered for biological medical use
point defects, line defects, as well as edge dislocation. Macrostructure refers to the overall geometric properties that will influence the force at failure
Biomaterial
threaded collar such as a nut can rotate around a stationary screw shaft. Geometrically, a screw can be viewed as a narrow inclined plane wrapped around a cylinder
Glossary_of_engineering:_M–Z
Numerical method for solving physical or engineering problems
{\displaystyle M_{ij}=\int v_{i}v_{j}dx} then we may rephrase (4) as It is not necessary to assume f ( x ) = ∑ k = 1 n f k v k ( x ) {\displaystyle f(x)=\sum
Finite_element_method
unnecessary for salvation, that the intention of the believer was all that was necessary. While some thought this might have been Protestant influence, it is likely
Catholic_Church_in_Kongo
Branch of physics which studies the behavior of materials modeled as continuous media
considered in the analysis of the mechanical behavior of materials, it becomes necessary to include two other types of forces: these are couple stresses (surface
Continuum_mechanics
Materials whose temperature variance leads to voltage change
different periodicities have been made. In addition, defects, especially dislocations, can be used to reduce thermal conductivity in low dimensional systems
Thermoelectric_materials
Airborne warfare throughout World War II
Mannheim, Frankfurt and Bochum. At the time, Bomber Command lacked the necessary navigational and bombing technical background and the accuracy of the
Strategic bombing during World War II
Strategic_bombing_during_World_War_II
American architect (1940–2012)
perceptual, natural, political, social or cultural. A building mass is not a necessary condition for the existence of space. The act of abstraction is an entirely
Lebbeus_Woods
scholar-officials who alone had the leisure to perfect the technique and sensibility necessary for great brushwork. Calligraphy was thought to be the highest and purest
Chinese_art
Highway designed for high-speed, regulated traffic flow
intersecting freeways and busy arterial roads. However, sometimes it is necessary to exit onto a surface road to transfer from one freeway to another. One
Controlled-access_highway
time, contains a surgical manual for treating wounds, fractures, and dislocations. The Egyptians believed that the effectiveness of their medicines depended
History_of_science
Heritage listed house in New South Wales, Australia
by the Aborigines from European glass. By 1840 there was widespread dislocation of Aboriginal culture, aggravated after 1850 by the goldrush to the region
Llanarth_(house)
GEOMETRICALLY NECESSARY-DISLOCATIONS
GEOMETRICALLY NECESSARY-DISLOCATIONS
GEOMETRICALLY NECESSARY-DISLOCATIONS
GEOMETRICALLY NECESSARY-DISLOCATIONS
GEOMETRICALLY NECESSARY-DISLOCATIONS
GEOMETRICALLY NECESSARY-DISLOCATIONS
GEOMETRICALLY NECESSARY-DISLOCATIONS
GEOMETRICALLY NECESSARY-DISLOCATIONS
GEOMETRICALLY NECESSARY-DISLOCATIONS