Magnetic Properties of Commercial Soft Magnetic Alloys at Cryogenic Temperatures
It is well known that the magnetic properties of soft ferromagnetic alloys are affected by temperature. In this respect a great deal of work is reported in the literature on the effects of elevated temperatures, but only a few references concerning low-temperature properties are available to design engineers. One of the most comprehensive papers published on the influence of low temperatures is that of Gniewek and Ploge  which deals with Si-Fe and 48 % Ni-Fe strip, both oriented and non-oriented. The increasing use of electromagnetic devices at cryogenic temperatures has created a need for information about other soft magnetic alloys, e.g. the high Ni-Fe permalloys and Co-Fe alloys. This study has investigated the behavior of a number of commercial alloys at low temperatures in an effort to supply some of the desired information.
KeywordsMagnetic Property Coercive Force Cryogenic Temperature Carbonyl Iron Initial Permeability
Unable to display preview. Download preview PDF.