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    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 9 (1987), S. 633-645 
    ISSN: 0392-6737
    Keywords: Magnetic annealing and temperature-hysteresis effects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto L'anisotropia indotta da trattamento termico in campo magnetico trasversale si correla con il modulo di elasticità lineare, la magnetostrizione longitudinale ed il coefficiente di accoppiamento magnetoelastico, in provini nastriformi di metallo amorfo. Successivamente si dimostra che l'anisotropia magnetica prodotta per ordine direzionale a corto raggio,k DSRO, può essere calcolata in modo originale attraverso i menzionati parametri fisici. La valutazione, cosí ottenuta in maniera semiteorica, è in crescente accordo con i risultati della misura diretta dik DSRO quanto piú gli effetti del trattamento termomagnetico si avvicinano alla loro saturazione. Detti effetti possono essere sintetizzati in una presenza di stress residui, lievemente maggiore rispetto a quanto avviene dopo il solo trattamento termico, ed in un grande aumento del coefficiente di magnetostrizione longitudinale.
    Abstract: Резюме Анизотропия, индуцированная отжигом в поперечном магнитном поле, коррелирует с модулем Юнга, продольной магнитострикции и коэффициентом магнитоупрутой связи. Показывается, что величина анизотропии, полученная из ориентационного короткодействующего упорядочения,k DSRO, может быть вычислена с помощью вышеуказанных параметров. Эта оценкаk DSRO согласуется с непосредственно измеряемой, величиной, когда происходит насыщение эффектов магнитного отжига. Влияние магнитного теплового эффекта может быть описано с помощвю небольшого увеличения внутреннего напряжения, по сравнению с обычным отжигом, и большого увеличения продольной магнитострикции.
    Notes: Summary The anisotropy induced by magnetic annealing in a transversal field is correlated with the Young modulus, the longitudinal magnetostriction and the magnetoelastic coupling coefficient. Subsequently it is shown that the value of the anisotropy deriving from directional short-range ordering,k DSRO, can be calculated in an original manner by means of the mentioned parameters. Thisk DSRO evaluation is in increasing agreement with its directly measured value, when the magnetic-annealing effects approach saturation. The magnetic heat treatment influences can be described by a small rise of the internal stress, in comparison with conventional annealing, and a large increase of longitudinal magnetostriction.
    Type of Medium: Electronic Resource
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