Formation of Transition Phases on Interface between Monocrystalline Fe and Cu Due to Mutual Solid-State Diffusion
| Autor: | Grzegorz Boczkal, Małgorzata Perek-Nowak |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
lcsh:TN1-997
Materials processing Materials science Interface (Java) 05 social sciences 0507 social and economic geography Metals and Alloys Industrial chemistry iron single crystal solid-state diffusion 050701 cultural studies 01 natural sciences Atomic diffusion Monocrystalline silicon Crystallography Chemical engineering 0103 physical sciences lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials copper single crystal transition phases 010306 general physics lcsh:Mining engineering. Metallurgy |
| Zdroj: | Archives of Metallurgy and Materials, Vol 61, Iss 2, Pp 581-586 (2016) |
| ISSN: | 2300-1909 |
| DOI: | 10.1515/amm-2016-0099 |
| Popis: | Interdiffusion between Fe (Armco) and Cu single crystals of similar orientation (around [110]) annealed at temperatures of 873 and 973K in air for 0.5 up to 4 h is studied. Formation of three phases different in their chemical composition has been observed: 1) oxide layer on Cu border (porous), 2) a layer rich in copper, iron and oxygen, 3) a layer of iron and oxygen with only small addition of Cu. All reactions of interface formation occurred in solid state. It was noted that oxygen plays an important role in development of new phases. Strong Kirkendall effect is observed due to large difference in diffusion coefficients of copper atoms to iron, DCu→Fe=300exp(-67800/RT) and iron atoms to copper DCu→Fe=0.091exp(-46140/RT). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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