Amorphous precipitates in a crystalline matrix; precipitation of amorphous Si3N4 in α-Fe

It is for the first time demonstrated that precipitation out of a crystalline supersaturated solid solution can lead to development of small, amorphous second-phase particles. The amorphous precipitates of Si3N4 obtained by nitriding Fe-1.6 at. pct Si are due to a possibly low amorphous-crystalline...

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Bibliographic Details
Published in:Scripta materialia 1999-08, Vol.41 (6), p.625-630
Main Authors: MITTEMEIJER, E. J, BIGLARI, M. H, BÖTTGER, A. J, VAN DER PERS, N. M, SLOOF, W. G, TICHELAAR, F. D
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals. Metallurgy
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Precipitation
Solid-phase precipitation
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Summary:It is for the first time demonstrated that precipitation out of a crystalline supersaturated solid solution can lead to development of small, amorphous second-phase particles. The amorphous precipitates of Si3N4 obtained by nitriding Fe-1.6 at. pct Si are due to a possibly low amorphous-crystalline interface energy, implying a thermodynamic rather than kinetic origin. (AIAA)
ISSN:1359-6462
1872-8456
DOI:10.1016/S1359-6462(99)00143-8