Efecte Wigner: diferència entre les revisions
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== Parelles íntimes frenkel ==
El 2003, es postulava que l'energia de Wigner es pot emmagatzemar mitjançant la formació d'estructures de defectes metastables en grafit. Cal destacar que el gran alliberament d’energia observat a 200-250 ° [[Celsius | C]] s’ha descrit en termes d’un parell intersticial-vacant metastable.<ref>{{cite journal|title=Metastable Frenkel Pair Defect in Graphite: Source of Wigner Energy?|author=C. P. Ewels, R. H. Telling, A. A. El-Barbary, M. I. Heggie, and P. R. Briddon|journal=Physical Review Letters|volume=91|issue=2|page=025505|doi=10.1103/PhysRevLett.91.025505|pmid=12906489|bibcode=2003PhRvL..91b5505E|year=2003|url=http://sro.sussex.ac.uk/23712/1/PhysRevLett.91.025505.pdf}}</ref> L'àtom intersticial queda atrapat al llavi de la vacant, i hi ha una barrera perquè es recombini per tornar a donar grafit pur.
== Vegeu també ==
* [[Energia nuclear]]
* [[Reactor nuclear]]
* [[Arma nuclear|Seguretat nuclear]]
* [[Efecte Wigner]]
* [[Moderador de neutrons]]
== Referències ==
Linha 24 ⟶ 32:
*Glasstone & Sesonke. ''Nuclear Reactor Engineering.'' Springer [1963] (1994). {{ISBN|0-412-98531-4}}
* {{cite book|title=Behavior of control rods during core degradation: pressurization of silver-indium-cadmium control rods|last=Powers|first=D.A.|date=August 1, 1985|publisher=[[Office of Scientific and Technical Information]], [[United States Department of Energy]]|ref=harv|osti=6332291}}
* {{cite book|title=Silver-indium-cadmium control rod behavior and aerosol formation in severe reactor accidents|last=Petti|first=D.A.|date=March 1, 1987|publisher=Office of Scientific and Technical Information, United States Department of Energy|ref=harv|osti=6380030}}
* {{cite web|url=https://inis.iaea.org/search/search.aspx?orig_q=RN:43018415|title=Experiments on silver-indium-cadmium control rod failure during severe accident sequences|last=Steinbrueck|first=M.|last2=Stegmaier|first2=U.|date=May 6, 2010|publisher=[[Karlsruhe Institute of Technology]]|access-date=May 29, 2017|ref=harv}}
==Enllaços externs==
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