Atomic ordering effects and bond indices in quaternary systems Si-(Be,Al)-O-N

Details Atomic ordering effects and bond indices in quaternary systems Si-(Be,Al)-O-N Atomic ordering effects and bond indices in quaternary systems Si-(Be,Al)-O-N

2002-12-17

arxiv.org/abs/cond-mat/0212397v1

Physics

Condensed Matter

Materials Science

5 pages, 4 figures. RevTeX4

Scientific paper

We propose a microscopic method for modeling atomic ordering effects in multi-component solid solutions, which is based on minimizing the number of unfavorable interatomic bonds in the system. Atomic ordering effects are studied in the solid solutions Si{6-x}AlxOxN{8-x} (beta-SiAlONs) and hypothetical Si{6-x}BexO{2x}N{8-2x} in the beta-Si3N4-Be-O system. It is established that in beta-SiAlONs, Al,O atoms form separate quasi-one-dimensional ``channels''. On the contrary, in Si{6-x}BexO{2x}N{8-2x}, Be and O atoms constitute a whole cluster. This means that homogeneous solid solutions cannot be formed in the beta-Si3N4-Be-O system under equilibrium conditions.

Affiliated with

Also associated with

No associations

Rating

Atomic ordering effects and bond indices in quaternary systems Si-(Be,Al)-O-N does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Atomic ordering effects and bond indices in quaternary systems Si-(Be,Al)-O-N, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomic ordering effects and bond indices in quaternary systems Si-(Be,Al)-O-N will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-258791