Materials Data on Mg2Si by Materials Project
Mg2Si crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are four inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded in a 4-coordinate geometry to four Si4- atoms. There are a spread of Mg–Si bond distances ranging from 2.75–3.12 Å. In the second Mg2+ site, Mg2+ is bonded to four Si4- atoms to form a mixture of distorted corner and edge-sharing MgSi4 tetrahedra. There are a spread of Mg–Si bond distances ranging from 2.75–2.93 Å. In the third Mg2+ site, Mg2+ is bonded in a 5-coordinate geometry to five Si4- atoms. There are a spread of Mg–Si bond distances ranging from 2.75–2.98 Å. In the fourth Mg2+ site, Mg2+ is bonded in a distorted water-like geometry to three Si4- atoms. There are a spread of Mg–Si bond distances ranging from 2.82–3.14 Å. There are two inequivalent Si4- sites. In the first Si4- site, Si4- is bonded in a 10-coordinate geometry to nine Mg2+ and one Si4- atom. The Si–Si bond length is 2.47 Å. In the second Si4- site, Si4- is bonded in a 8-coordinate geometry to seven Mg2+ and one Si4- atom.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Organization:
- MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- OSTI ID:
- 1727469
- Report Number(s):
- mp-1074641
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
Spark plasma sintering and thermoelectric evaluation of nanocrystalline magnesium silicide (Mg2Si)
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journal | October 2012 |
The crystallographic orientation relationship between Al2O3 and MgAl2O4 in the composite material Al2O3/Al–Mg–Si alloy
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journal | April 2007 |
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