Accession Number : AD0669813

Title :   STRUCTURE STUDY OF AN AMORPHOUS ELECTRODEPOSITED NICKEL-PHOSPHORUS ALLOY.

Descriptive Note : Technical rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS DIV OF ENGINEERING AND APPLIED PHYSICS

Personal Author(s) : Bagley,B. G. ; Turnbull,D.

Report Date : APR 1968

Pagination or Media Count : 23

Abstract : The radial distribution function for an electrodeposited amorphous nickel-phosphorus (14.9 wt % P) alloy has been determined. The atomic distribution was found to be similar to that in a monatomic liquid metal, and more disordered than that observed in an amorphous nickel-phosphorus alloy produced by chemical deposition. Two transformations (both exothermic) were observed in this alloy; the first of which occurred at 280 plus or minus 2C with an energy of 18.5 cal/gm (960 cal/gm atom) and the second at 410 plus or minus 5C with an energy of 6.0 cal/gm (310 cal/gm atom). As deposited the alloy exhibits only a very weak small angle X-ray scattering, apparently not due to the presence of the phosphorus. (Author)

Descriptors :   (*NICKEL ALLOYS, MICROSTRUCTURE), (*METAL COATINGS, MICROSTRUCTURE), ELECTRODEPOSITION, PHOSPHORUS ALLOYS, CALORIMETRY, X RAYS, SCATTERING, IMPURITIES, ABSORPTION, DISTRIBUTION FUNCTIONS, THICKNESS, PHASE STUDIES, TRANSITION TEMPERATURE, GLASS

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE