Cottrell atmosphere

E168995
crystal defect-related phenomenon materials science concept

The Cottrell atmosphere is a localized cloud of solute atoms that forms around dislocations in a crystal lattice, reducing their mobility and influencing the material’s mechanical properties.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (4)

Label Occurrences
Cottrell atmosphere canonical 1
Cottrell cloud 1
Cottrell–Bilby theory 1

Statements (47)

Predicate Object
instanceOf crystal defect-related phenomenon ⓘ
materials science concept ⓘ
affects plastic deformation behavior ⓘ
stress–strain curve ⓘ
alsoKnownAs Cottrell atmosphere ⓘ
surface form: Cottrell cloud
associatedWith Portevin–Le Chatelier effect ⓘ
dynamic strain aging ⓘ
static strain aging ⓘ
canBeBrokenBy application of sufficient stress ⓘ
plastic deformation ⓘ
composedOf solute atoms ⓘ
dependsOn diffusivity of solute atoms ⓘ
solute concentration ⓘ
temperature ⓘ
field dislocation theory ⓘ
physical metallurgy ⓘ
formsAround dislocation ⓘ
line defect in a crystal lattice ⓘ
formsDueTo diffusion of solute atoms to dislocations ⓘ
elastic interaction between solute atoms and dislocation stress field ⓘ
hasEffectOn dislocation mobility ⓘ
influences mechanical properties of materials ⓘ
strain aging behavior ⓘ
work hardening ⓘ
yield strength ⓘ
is example of solute–dislocation interaction ⓘ
localized cloud of solute atoms ⓘ
type of point-defect segregation to dislocations ⓘ
leadsTo Lüders band formation ⓘ
increase in yield stress ⓘ
upper and lower yield point behavior ⓘ
modeledBy Cottrell atmosphere self-linksurface differs ⓘ
surface form: Cottrell–Bilby theory
namedAfter Alan Cottrell ⓘ
observedIn interstitial solid solutions ⓘ
low-carbon steels ⓘ
substitutional solid solutions ⓘ
occursIn alloy ⓘ
crystalline solid ⓘ
metal ⓘ
pins dislocation ⓘ
reduces dislocation mobility ⓘ
reformsBy diffusion during aging ⓘ
relatedTo dislocation locking ⓘ
solute drag ⓘ
yield point phenomenon ⓘ
requires mobile solute atoms ⓘ
stabilizes dislocation ⓘ

How these facts were elicited

The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.

Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10.

# Requirements
- If you don't know the subject at all, return an empty list.
- If the subject is not a named entity, return an empty list.
- Include at least one triple where predicate is "instanceOf".
- Do not get too wordy.
- Separate several objects into multiple triples with one object.
Input
Subject: Cottrell atmosphere
Description of subject: The Cottrell atmosphere is a localized cloud of solute atoms that forms around dislocations in a crystal lattice, reducing their mobility and influencing the material’s mechanical properties.

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Alan Cottrell → knownFor → Cottrell atmosphere ⓘ
Alan Cottrell → knownFor → Cottrell atmosphere ⓘ
this entity surface form: Cottrell–Stokes law
Cottrell atmosphere → alsoKnownAs → Cottrell atmosphere ⓘ
this entity surface form: Cottrell cloud
Cottrell atmosphere → modeledBy → Cottrell atmosphere self-linksurface differs ⓘ
this entity surface form: Cottrell–Bilby theory