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Information gain from analytical description of isothermal resistivity curves
Author(s) -
Oettel W.,
Radomsky C.,
Löffler H.
Publication year - 1980
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19800150613
Subject(s) - electrical resistivity and conductivity , isothermal process , boltzmann equation , isotropy , volume fraction , materials science , relaxation (psychology) , volume (thermodynamics) , boltzmann constant , thermodynamics , condensed matter physics , physics , optics , quantum mechanics , psychology , social psychology
The experimentally gained course of the resistivity of some Al‐Zn‐Mg alloys during isothermal aging is analyzed by means of a calculation of the extra resistivity of GUINIER‐PRESTON zones based on the solution of the BOLTZMANN‐equation in the isotropic relaxation time approximation and using XSAS intensities quoted by G UINIER and F OURNET . Applying this equation from the increase of the resistivity information on the time development of the volume fraction of the zones and from the course of the resistivity behind the maximum the growth law of the precipitates can be drawn from the alloys investigated.