Electrochemically deposited thin films of amorphous Fe–P alloy: Part I. Chemical composition and phase structure characterization

• Published in: Journal of electroanalytical chemistry (Lausanne, Switzerland) Vol. 448; no. 2; pp. 245 - 252
• Main Authors: ZECEVIC, S. K, ZOTOVIC, J. B, GOJKOVIC, S. L, RADMILOVIC, V
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 20-05-1998; Elsevier Science
• Subjects: Amorphous alloys; Applied sciences; Chemistry; Electrochemistry; Electrodeposition; Exact sciences and technology; General and physical chemistry; Iron–phosphorous alloy; Metallic coatings; Metals. Metallurgy; Production techniques; Study of interfaces; Surface treatment; Thin films; Thin films; Electrodeposition; Amorphous alloys; Iron–phosphorous alloy; Temperature; Amorphous alloy; X ray; Experimental study; Dispersive spectrometry; X ray diffraction; Phosphorus Alloys; Operating conditions; Thin film; Iron Alloys; Energy dispersion; Morphology; pH; Chemical composition; Thermal analysis; Electrochemical reaction; Current density
• ISSN: 1572-6657; 1873-2569
• DOI: 10.1016/S0022-0728(97)00417-8

Thin Fe–P alloy films (0.5 to 25.0
μm thick) were electrodeposited from sulfate solutions. The influences of various deposition conditions (current density, time, pH and temperature) on the composition and structure of the deposited films were examined. These Fe–P films were first characterized by the ALSV. The voltammograms obtained show several current peaks, indicating the presence of several different phase structures in the deposit. Chemical composition of the phase structures in the film was determined by EDX analysis and the amorphous nature of the alloy was verified by XRD and DTA techniques. Chemical and phase structure compositions of the alloys (containing 15–50 at.% P in the form of phosphides FeP, Fe
2P and/or Fe
3P) were found to depend on deposition conditions. Appearance and morphology of the film alloys were also found to depend on deposition conditions, particularly current density, as illustrated by the SEM technique.