Formation of iron arsenide films on steel substrates from exposure to molten lead
| Autor: | Eric Paul Loewen, Kenneth Lenay Gilbert, George Norman Bisanz |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Metallurgy
Metals and Alloys chemistry.chemical_element Surfaces and Interfaces Substrate (electronics) Surfaces Coatings and Films Electronic Optical and Magnetic Materials Arsenide Metal chemistry.chemical_compound Antimony chemistry Chemical engineering visual_art Materials Chemistry visual_art.visual_art_medium Texture (crystalline) Chemical composition Layer (electronics) Arsenic |
| Zdroj: | Thin Solid Films. 457:313-319 |
| ISSN: | 0040-6090 |
| DOI: | 10.1016/j.tsf.2003.11.299 |
| Popis: | This paper reports a mechanism for the formation of iron–arsenide films on metal substrates in the presence of molten lead (2-wt.% antimony and 0.3-wt.% arsenic). When iron samples were exposed to flowing molten lead at 500 °C for 100 h, an iron–arsenide film (approx. 40 μm) formed on the substrate. The film is composed of two layers: an outer-most layer approaching stoichiometric composition of iron–arsenide, and an inner layer a mixture of Fe–As–Sb–Pb. An abrupt change in elemental composition and texture is observed between the two layers. Film growth resulted in no obvious dimensional change in the substrate. Optimal film growth occurred at an oxygen potential of pO2∼10−40 atm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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