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The influence of cold work and radiation damage on the debye temperature of copper

โœ Scribed by D Bowen; G.W Rodeback


Publisher
Elsevier Science
Year
1953
Weight
497 KB
Volume
1
Category
Article
ISSN
0001-6160

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โœฆ Synopsis


Copper wires have been cold-worked or subjected to radiation damage. Simultaneous measurements of resistance have been made on a damaged wire and a well-annealed wire. The resistance measurements are made over the temperature range from 4.2"K to 77ยฐK. The differing behavior of the temperature-dependent portions of the resistivities of the two wires has been interpreted as a decrease of Debye temperature in the damaged sample. The maximum change observed is 45". The thermal annealing of this change has been followed. Some thermodynamic implications of these changes are suggested. L'INFLUEIGCE DE L'ECROLJISSAGE ET DU DEGaT DU A LA RADIATION SIJR LA TEMPERATURE DE DEBYE DU CUIVRE Des fils de cuivre ont-6th Ccrouis ou soumis a la destruction par irradiation. Des mesures de r&istance, dans un intervalle des temperatures de 4,2"K a 77"K, ont et6 effect&es simultanement sur un fil endommage et un fil bien recuit. Le comportement different des parties dependant de la temnerature. de la resistivite des deux fils. a et6 intermete comme un abaissement de la temnerature de Debye dam l'itchantillon endommage. Le changemknt maximum observe est de 45". L'at&uation de ce changement par recuit thermique a et6 suivi. Certaines implications thermodynamiques relatives a ces changements sont suggerees. DER EINFLUSS VON KALTBEARBEITUNG UND STRAHLUNGSSCHADIGUNG AUF DIE DEBYE-TEMPERATUR DES KUPFERS Kupferdrahte wurden kalt bearbeitet oder Strahlungsschadigung unterworfen. Der Widerstand eines beschadigten und eines gut ausgegltihten Drahtes wurde gleichzeitig gemessen und zwar in einem Temperaturbereich zwischen 4.2"K und 77ยฐK. Das unterschiedliche Verhalten der temperaturabhangigen Anteile der Widerstgnde der beiden Drahte wurde als eine Abnahme der Debye Temperatur der beschgdigten Probe gedeutet. Der grosste beobachtete Unterschied betrug 45". Das thermische Ausheilen dieses Unterschiedes wurde verfolgt. Einige thermodynamische Folgerungen dieser Erscheinungen werden angezeigt.


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