Optimizing glass formation in ferromagnetic alloys through chemical fluxing
| Autor: | Michael Floyd, William L. Johnson, Marios D. Demetriou |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Mechanical Engineering Alloy Metals and Alloys Oxide 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Redox Glass forming 0104 chemical sciences chemistry.chemical_compound Ferromagnetism Chemical engineering chemistry Mechanics of Materials Boron oxide engineering General Materials Science 0210 nano-technology |
| Zdroj: | Scripta Materialia. 146:312-315 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2017.12.013 |
| Popis: | We identify a reduction reaction of boron oxide by Si during melt fluxing of the Fe-Co-Si-B-P system, which results in an unexpected and significant B enrichment and Si depletion in the alloy. Taking this reaction into account, an optimized Fe-Co-Si-B-P alloy free from oxide inclusions and demonstrating a global peak in glass forming ability is formed. Following a 22-h high temperature fluxing of the melt, alloy with composition Fe_(57.5)Co_(20.2)Si_(10.2)B_(2.1)P_(10) transforms to Fe_(57)Co_(19.2)Si_(6.8)B_(7.4)P_(9.6), and its critical rod diameter increases from 1 mm to 5 mm. The alloy also demonstrates excellent soft ferromagnetic performance characterized by a magnetic saturation of 1.53 T. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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