On the temperature behavior of a tensoresistive effect in the amorphous Fe80B14 alloy
2009
Investigation of the temperature behavior of the coefficient of tensoresistance π of the amorphous Fe86B14 alloy in a temperature range from room temperature to the crystallization temperature has been carried out. It has been revealed that below the Curie temperature T C, in the interval of existence of elinvar properties, π in this alloy increases only weakly, with a temperature coefficient of 4 × 10−4 K−1. At T > T C, a stronger temperature increase of π is observed. An analysis performed has shown that the most probable reason of the observed temperature changes in π was a temperature-induced change in Young’s modulus of the alloy. It has been shown that during crystallization the coefficient of tensoresistance π decreases with increasing amount of crystalline phases in the alloy.
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