Structure, composition, and morphology of electrodeposited Co{sub x}Fe{sub 1{minus}x} alloys

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1837987· OSTI ID:556850

Kakuno, E M; Mosca, D H; Mazzaro, I; Mattoso, N; Schreiner, W H; Gomes, M A.B. ^[1]; Cantao, M P ^[2]

---

1. Univ. Federal do Parana, Curitiba (Brazil)
2. LAC-COPEL, Curitiba (Brazil). Coordenadoria de P and D de Materiais

The authors have investigated the structure, composition, and morphology of Co{sub x}Fe{sub 1{minus}x} alloys prepared on copper substrates under potentiostatic electrodeposition conditions currently used to produce composition modulated alloys. Co{sub x}Fe{sub 1{minus}x} alloys with x = 1 to 0 have been obtained by simple control of the Co{sup 2+}:Fe{sup 2+} ratio in the bath solutions using the characteristic behavior of the codeposition of the metals. The alloy composition was determined by energy dispersive spectroscopy X-ray analysis of the structure of deposits indicates texture with coexistence of phases. For higher iron concentrations the alloys are mostly body-centered-cubic with (110) preferred orientation. For higher cobalt concentrations the alloys become mostly hexagonal with (0001) preferred orientation. Scanning electron microscopy was used to analyze the deposit morphology. Except for alloy concentrations of about x = 0.7, where a nonuniform character of deposits with partial cobalt segregation has been observed, the Co-Fe alloys have a rather uniform composition and morphology in the cathodic potentials used for electrodeposition.

• Sponsoring Organization: USDOE
• OSTI ID: 556850
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 9 Vol. 144; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHEMICAL COMPOSITION
COBALT ALLOYS
CRYSTAL STRUCTURE
ELECTRODEPOSITED COATINGS
IRON ALLOYS
MORPHOLOGY