. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 284 BELL SYSTEM TECHNICAL JOURNAL dimension is about 10"^ cm or less. Many studies have been made of thin electrodeposited and evaporated films. Generally it is found that the per- meability is low and the coercive force high. The interpretation is uncertain \zo°^.-^""'^ 9 0° ^^^T"""-^-^ s 60° 150y / / ISOPERM \ / 40% NICKEL \ ^^ 60% IRON >\ COLD ROLLED \ / K^<Z li 1- U "J 1 III a. ^^ Q s. 7/\ W ROLLING DIRECTION 180° U 1 , >
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 284 BELL SYSTEM TECHNICAL JOURNAL dimension is about 10"^ cm or less. Many studies have been made of thin electrodeposited and evaporated films. Generally it is found that the per- meability is low and the coercive force high. The interpretation is uncertain \zo°^.-^""'^ 9 0° ^^^T"""-^-^ s 60° 150y / / ISOPERM \ / 40% NICKEL \ ^^ 60% IRON >\ COLD ROLLED \ / K^<Z li 1- U "J 1 III a. ^^ Q s. 7/\ W ROLLING DIRECTION 180° U 1 , > u" 5 0 5 COERCIVE FORCE, He, IN OERSTEDS tO^x 15 10 5 0 5 10 RESIDUAL INDUCTION, Bp, IN GAUSSES 15 X 10^ 50 0 50 INITIAL PERMEABILITY,//,) 100 10^x3 1 0 1 MAXIMUM PERMEABILITY, fJL^ 3X103 Fig. 35—Properties of the same material as that of Fig. 34, after it has been rolled, annealed, and again I 2 3 4 5 6 PER CENT SILICON IN IRON Mg. 36 -Variation of the breaking strength of iron-silicon alloys, showing the onset of brittlcness near 4 per cent silicon. because it is difficult to separate the effects of strains and air gaps from the intrinsic effect of thickness, though it is known that each one of these vari- ables has a definite effect. As one example of the many experiments, we. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Telephone and Telegraph Company. [Short Hills, N. J. , etc. , American Telephone and Telegraph Co. ]
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