Cottrell atmosphere
E168995
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.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Cottrell atmosphere canonical | 1 |
| Cottrell cloud | 1 |
| Cottrell–Bilby theory | 1 |
| Cottrell–Stokes law | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1479025 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
Target entity: Cottrell atmosphere Context triple: [Alan Cottrell, knownFor, Cottrell atmosphere]
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A.
Peierls transition
The Peierls transition is a phase transition in one-dimensional metals where a periodic lattice distortion opens an energy gap at the Fermi surface, turning the system from a metal into an insulator or semiconductor.
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B.
Peierls
Peierls is a surname most notably associated with Rudolf Peierls, a German-born British physicist who made key contributions to nuclear physics and the development of the atomic bomb.
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C.
Schrieffer
Schrieffer is the surname of John Robert Schrieffer, the American physicist and Nobel laureate known for co-developing the BCS theory of superconductivity.
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D.
Szilard–Chalmers effect
The Szilard–Chalmers effect is a nuclear chemistry phenomenon in which atoms that undergo neutron capture and become radioactive are chemically separated from their original, non-activated atoms due to recoil-induced disruption of their chemical bonds.
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E.
Bragg
Bragg is a surname most famously associated with physicists William Henry Bragg and his son Lawrence Bragg, pioneers of X-ray crystallography and Nobel Prize laureates.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Cottrell atmosphere Target entity description: 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.
-
A.
Peierls transition
The Peierls transition is a phase transition in one-dimensional metals where a periodic lattice distortion opens an energy gap at the Fermi surface, turning the system from a metal into an insulator or semiconductor.
-
B.
Peierls
Peierls is a surname most notably associated with Rudolf Peierls, a German-born British physicist who made key contributions to nuclear physics and the development of the atomic bomb.
-
C.
Schrieffer
Schrieffer is the surname of John Robert Schrieffer, the American physicist and Nobel laureate known for co-developing the BCS theory of superconductivity.
-
D.
Szilard–Chalmers effect
The Szilard–Chalmers effect is a nuclear chemistry phenomenon in which atoms that undergo neutron capture and become radioactive are chemically separated from their original, non-activated atoms due to recoil-induced disruption of their chemical bonds.
-
E.
Bragg
Bragg is a surname most famously associated with physicists William Henry Bragg and his son Lawrence Bragg, pioneers of X-ray crystallography and Nobel Prize laureates.
- F. None of above. chosen
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.
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.
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.