Platform MaterialDigital - Precipitate Geometry Ontology (PGO)

Abstract

The Precipitate Geometry Ontology (PGO) is a small ontology used to describe data originating from transmission electron microscopy (TEM) analyses of precipitates. It was created in the frame of the collaborative project Platform MaterialDigital (PMD, https://materialdigital.de). It is further part of a demonstrator showing possible interactions of semantic data created by the application of multiple ontologies and used by federated SPARQL querying - the "Orowan Demonstrator" (available at: https://github.com/materialdigital/demo-orowan).

Cross-reference for Platform MaterialDigital - Precipitate Geometry Ontology (PGO) classes, object properties and data properties back to ToC

This section provides details for each class and property defined by Platform MaterialDigital - Precipitate Geometry Ontology (PGO).

Average Precipitate Distance^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/AveragePrecipitateDistance

As a subclass of precipitate distance, the average precipitate distance is determined from several precipitate distances via, e.g., the Delauney triangulation. Hence, the average precipitate distance can be calculated using the median and the arithmetic mean value of all individual measurements of precipitate distances regarded.

Is defined by: https://w3id.org/pmd/pgo

has super-classes: Precipitate Distance ^c

calibration factor^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/CalibrationFactor

As a subclass of value object, the calibration factor provides a pixel-to-real-distance conversion factor, that allows image scaling to metric units.

Is defined by: https://w3id.org/pmd/pgo

has super-classes: value object ^c

Dark-field Image^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/DarkFieldImage

As a subclass of image, the dark-field image is generated from a high-resolution transmission electron microscope (HR-TEM).

Is defined by: https://w3id.org/pmd/pgo

has super-classes: image ^c

Image Analysis Process^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/ImageAnalysisProcess

As subclass of a non-transformative analysis process, the image analysis process is a process by which useful information, such as precipitate coordinates and their distances, are extracted from an image and interpreted for further application.

Is defined by: https://w3id.org/pmd/pgo

has super-classes: non transformative analysis process ^c

Particle^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/Particle

As a subclass of object, a particle is a small localized object which can be described by several physical or chemical properties, such as volume, density, or mass.

Is defined by: https://w3id.org/pmd/pgo

has super-classes: object ^c
has sub-classes: Precipitate ^c

Precipitate^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/Precipitate

As a subclass of particle, precipitates are finely distributed metastable phases (e.g., intermetallic compounds) that are created as effective obstacles to dislocation motion in age-hardenable metallic alloys by specific heat treatments.

Is defined by: https://w3id.org/pmd/pgo

has super-classes: Particle ^c

Precipitate Area^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/PrecipitateArea

As a subclass of the area, the precipitate area is a measure that is used to compare precipitate sizes. As a rule, a circular approximation is used for precipitation particles.

Is defined by: https://w3id.org/pmd/pgo

has super-classes: area ^c

Precipitate Distance^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/PrecipitateDistance

As a subclass of distance, the precipitate distance is a measure of the distance between two precipitates. Usually, this distance is obtained from analysing dark-field TEM images and given in nanometers.

Is defined by: https://w3id.org/pmd/pgo

has super-classes: distance ^c
has sub-classes: Average Precipitate Distance ^c

Precipitate Number^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/PrecipitateNumber

Is defined by: https://w3id.org/pmd/pgo; https://w3id.org/pmd/pgo; https://w3id.org/pmd/pgo

has super-classes: index ^c

Precipitate Radius^c back to ToC or Class ToC

IRI: https://w3id.org/pmd/pgo/PrecipitateRadius

As a subclass of radius, precipitate radius is a measure used to perform a specific precipitate size correlation. The precipitate radius is usually obtained from the circular approximation of the precipitate area.

Is defined by: https://w3id.org/pmd/pgo

has super-classes: radius ^c

Annotation Properties

creator
definition source

creator^ap back to ToC or Annotation Property ToC

IRI: http://purl.org/dc/elements/1.1/creator

definition source^ap back to ToC or Annotation Property ToC

IRI: https://w3id.org/pmd/co/definitionSource

Legend back to ToC

^c: Classes

Platform MaterialDigital - Precipitate Geometry Ontology (PGO)

Release 2023-12-13

Abstract