252 Dr. D. K. Morris on the Magnetic Properties 



Hysteresis- Temperature Curves. 

 Specimen A. Annealed at 1050° C. Limits of Cycle. H= +6*10. 



o°c. 



1000° c. 



Temperature. 



Specimen B. Limits of Cycle. H= +6-83 C.G.S. Units : 

 Curve I. After annealing at 840° C. Curve II. After annealing at 1150° C. 



15. 



Hysteresis 

 • cubic centimetre per cycle. 



no© 



z> © o 

































in ergs pei 



© < 













0°C. 200° 400° 600° 800° 1000° C 



Temperature. 



Specimen B. 



Limits of Hysteresis Loop. 

 Curve I. After annealing at 840° C. B= ±4260. 



„ II. After annealing at 1150° C. B= ±4550. 



„ III. Calculated from I. for tbe Limits B= ±4550. 

 (to compare with II.) 



10. 



200° 400° 600° 



Temperature. 



100o° c. 



