Inverse of hasSegment
is segment of
A slip system is defined as the set of slip planes with the same unit normal vector and the same slip direction.
Slip System
A set of symmetrically equivalent directions in the lattice.
Family of Crystal Direction
A fixed point that is needed by the vector to identify other points in the space relative to its origin.
Ursprung
Vector Origin
observedBy represents the relationship between dislocation and microscopy techniques, e.g., TEM, FIM, etc.
observed by
Said Fathalla
Stefan Sandfeld
21.03.2022
Ahmad Zainul Ihsan
Dislocation Ontology
DISO
Dislocation Ontology
https://github.com/Materials-Data-Science-and-Informatics/dislocation-ontology
1.0
hasSlipPlaneNormal represents the relationship between a slip plane or slip system with slip plane normal.
has slip plane normal
The numerical representation of the dislocation line that is discretized into the number of segments.
Discretized Line
Linear or one-dimensional defect around which some of the atoms are misaligned. In the mesoscale, a dislocation is a line object that is a boundary separating the regions on the slip plane which have undergone slip from those that have not.
The presence of dislocation introduces local disturbance of the atomic-level geometry.
Dislocation
Versetzung
A dislocation that has a line sense perpendicular to its Burgers vector.
Edge Dislocation
The shape function is the function that interpolates the solution between the discrete values obtained at the mesh nodes. In discretized dislocation, the shape function determines the shape of a segment and ultimately determines the shape of the line. Examples of shape function that is used to discretize the dislocation are circular, elliptic, spiral, linear, cubic, and quintic.
Shape Function
hasLatticeDirection represents the relationship between a lattice or a lattice plane with lattice directions.
has lattice direction
Mathematical representation of dislocation as 'Line'. An instance of mathematical representation of a dislocation line is an oriented curve parameterized by its arc length.
Line
A point of a segment.
Node
movesOn represents the relationship between dislocation and slip plane.
moves on
The segment is a part of a line bounded by two distinct end points and may contain points on the line between its endpoints.
Segment
(Euclidean) vector is used to represent quantities that both magnitude and direction.
Vector
(Euclidean) vector used to represent quantities that both magnitude and direction.
A <b>Quantity Kind</b> is any observable property that can be measured and quantified numerically. Familiar examples include physical properties such as length, mass, time, force, energy, power, electric charge, etc. Less familiar examples include currency, interest rate, price to earning ratio, and information capacity.
Quantity Kind
<p class="lm-para">A quantity is the measurement of an observable property of a particular object, event, or physical system. A quantity is always associated with the context of measurement (i.e. the thing measured, the measured value, the accuracy of measurement, etc.) whereas the underlying quantity kind is independent of any particular measurement. Thus, length is a quantity kind while the height of a rocket is a specific quantity of length; its magnitude that may be expressed in meters, feet, inches, etc. Examples of physical quantities include physical constants, such as the speed of light in a vacuum, Planck's constant, the electric permittivity of free space, and the fine structure constant. </p>
<p class="lm-para">In other words, quantities are quantifiable aspects of the world, such as time, distance, velocity, mass, momentum, energy, and weight, and units are used to describe their measure. Many of which are related to each other by various physical laws, and as a result the units of some of the quantities can be expressed as products (or ratios) of powers of other units (e.g., momentum is mass times velocity and velocity is measured in distance divided by time). These relationships are discussed in dimensional analysis. Those that cannot be so expressed can be regarded as "fundamental" in this sense.</p>
<p class="lm-para">A quantity is distinguished from a "quantity kind" in that the former carries a value and the latter is a type specifier.</p>
Quantity
slipArea represents the slip area of discretized line in double.
slipArea
hasRepresentation relates the entity to another representation of entity.
has representation
hasVectorOrigin represents the relationship between lattice plane and origin.
has vector origin
Sub-property of hasNode that relates the segment with the end node.
has end node
hasSegment represents the relationship between discretized line and segment.
has segment
A crystal structure is described by the lattice geometry and atomic arrangements within the unit cell.
Crystal Structure
hasSlipSystem represents the relationship between a crystal structure and slip system.
has slip system
1
1
directionMillerIndice represents Miller indice of lattice direction in string.
direction miller indice
1
1
hasShapeFunction represents the relationship between discretized line and shape function.
has shape function
hasNode represents the relationship between segment and node.
has node
The lattice plane forms an infinitely stretched plane (characterized through a plane normal) that cuts through lattice points such that, again, a regular arrangement of lattice points in the plane occurs.
Lattice Plane
Lattice point is the point where atom(s) or molecule(s) is located.
Lattice Point
The mathematical concept to represent the periodicity of a crystal. A lattice defines a periodic arrangement of one or more atoms.
Lattice
hasLatticePlane represents the relationship between a lattice and lattice planes.
has lattice plane
A <i>Quantity Value</i> expresses the magnitude and kind of a quantity and is given by the product of a numerical value <code>n</code> and a unit of measure <code>U</code>. The number multiplying the unit is referred to as the numerical value of the quantity expressed in that unit. Refer to <a href="http://physics.nist.gov/Pubs/SP811/sec07.html">NIST SP 811 section 7</a> for more on quantity values.
Quantity value
1
Field Ion Microscopy (FIM) is a microscopy technique that can be used to image the arrangement of atoms.
Field Ion Microscopy
The displacement of atoms from their perfect lattice sites due to the existence of defects, e.g., point defect, line defect, and grain boundary.
Lattice Displacement
A set of symmetrically equivalent planes in the lattice.
Family of Crystal Plane
hasBurgersVector represents the relationship between dislocation to Burgers vector.
has Burgers vector
Euclidean vector that represents the position of a point P in space in relation to an arbitrary reference origin O.
Position Vector
familyPlaneMillerIndice represents a set of Miller indice of lattice plane in string.
family plane miller indice
The unit normal vector of slip planes.
Slip Plane Normal
The crystallographic/lattice plane along which the dislocation line traverses/moves. The slip plane is usually the plane with the highest density of atoms, i.e. most widely spaced.
Slip Plane
planeMillerIndice represents Miller indice of lattice plane in string.
plane miller indice
hasLatticePoint represents the relationship between a lattice or lattice plane or lattice direction with lattice point.
has lattice point
Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image. The specimen is often an ultrathin section less than 100 nm thick.
Transmission Electron Microscopy
A sense that characterizes a directed line, i.e., it has a start and an end.
Line Sense
hasFamilyCrystalDirection represents the relationship between lattice direction and family of crystal direction.
has family crystal direction
1
Linear or one-dimensional defect around which some of the atoms are misaligned.
Line Defect
Coordinate Vector
A coordinate vector according to standard basis, i.e., e_x (1, 0, 0), e_y(0, 1, 0), and e_z (0, 0, 1).
Sub-property of hasNode that relates the segment with the start node.
has start node
hasNumericalRepresentation relates the entity with its numerical representation.
has numerical representation
1
resultsIn represents the relationship between dislocation and lattice displacement.
results in
The vector direction inside the lattice that is connecting two lattice points.
Lattice Direction
1
hasSlipDirection represents the relationship between the slip plane or slip system with the slip direction.
has slip direction
In classical Euclidean geometry, a point is a primitive notion that models an exact location in the space, and has no length, width, or thickness.
Point
A unit of measure, or unit, is a particular quantity value that has been chosen as a scale for measuring other quantities the same kind (more generally of equivalent dimension). For example, the meter is a quantity of length that has been rigorously defined and standardized by the BIPM (International Board of Weights and Measures). Any measurement of the length can be expressed as a number multiplied by the unit meter. More formally, the value of a physical quantity Q with respect to a unit (U) is expressed as the scalar multiple of a real number (n) and U, as \(Q = nU\).
Unit
1
hasFamilyCrystalPlane represents the relationship between the lattice plane and the family of crystal planes.
has family crystal plane
hasPositionVector represents the relationship between entity and position vector.
has position vector
An elementary unit (length order of lattice parameter) of lattice translation. The basic notion of the Burgers vector comes from the closure failure of an initially perfect lattice due to the existence of dislocation. The magnitude and direction of closure failure are characterized by the Burgers vector.
Burgers Vector
A basis defines a spatial unit used to express fractional coordinates.
Basis
Set of vector(in 2-D two vectors and in 3-D three vectors) that linearly independent.
Vector components/vector coordinates of particular basis. It has relation to a specific basis.
Vector Component of Basis
1
hasMathematicalRepresentation relates the entity with its mathematical representation.
has mathematical representation
hasSlipPlane represents the relationship between crystal structure and slip plane.
has slip plane
The direction in the slip plane along which plastic deformation takes place. The slip direction corresponds to one of the shortest lattice translation vectors.
Slip Direction
1
1
hasLineSense represents the relationship between dislocation and line sense.
has line sense
The crystallographic defect is a lattice irregularity that has one or more dimensions on the order of an atomic diameter.
Crystallographic Defect
1
1
1
familyDirectionMillerIndice represents a set of miller indices of lattice direction in string.
family direction miller indice
1
A dislocation that has a line sense parallel to its Burgers vector.
Screw Dislocation