926 



THE BELL SYSTEM TECHNICAL JOURNAL, OCTOBER 1951 



T = 370'*K V = 2500 



4 MINUTES 



V = 2950 L= 50i^A 



2/5 SECOND 



T = 450-K V = 



5 MINUTES 



V=2650 L= 50/iA 



2/5 SECOND 



T = 400°K V = 2500 



5 MINUTES 



V= 2900^ L= 50 uA 



2/5 SECOND 



T = 510°K V= 2300 

 6 MINUTES 



V = 2500 L=50uA 



2/5 SECOND 



T = 420''K V=2400 



10 MINUTES 



V=2900^ L=70aA 



2/5 SECOND 



2300 



T = 615°K V: 



5 MINUTES 



V= 2570 ^ L= 50 ^A 



2/^ SECOND 



Fig. 8— The disappearance of crystallites from 370 to 615**K. 



