Date of Award
1994
Document Type
Thesis
Publication Status
Version of Record
Submission Date
October 2026
Thesis/Dissertation Advisor [Chair]
Qiu, Shen-Li
Abstract
Characterization investigations were carried out for Ni-Fe alloys for three different concentrations of iron. The starting and ending temperatures of the fcc-bcc phase transformation both on heating and on cooling were obtained by measuring the resistance as a function of temperature; the results agree with previous work. We also measured the lattice constants of both structures by using a modified Debye-Scherrer method. For the fcc structure a is 3.5837 A, for the bcc structure a is 2.875 A, and we noticed a decrease of the lattice constant as the iron concentration is increased. Auger electron spectroscopy was carried out for the purpose of studying the surface segregation and a concentration analysis was attempted. The results show that Ni is preferentially sputtered but an annealing process can overcome this segregation. Magnetic measurements show a change of magnetization with temperature though the data is insufficient to obtain the average moment.
Extent
99 p.
Recommended Citation
Wang, Wei, "Characterization of some iron rich nickel-iron alloys" (1994). Electronic Theses and Dissertations 1990 - 1999. 552.
https://digitalcommons.fau.edu/etd_general_4/552
Identifier
FADT14996
Comments
Thesis (M.S.)--Florida Atlantic University, 1994.|Thesis (M.S.)--Florida Atlantic University, 1994.