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Title: Materials Data on Nb3AlC2 by Materials Project

Abstract

Nb3AlC2 is MAX Phase-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All Nb–Al bond lengths are 2.88 Å. All Nb–C bond lengths are 2.19 Å. In the second Nb site, Nb is bonded to six equivalent C atoms to form edge-sharing NbC6 octahedra. All Nb–C bond lengths are 2.25 Å. Al is bonded to six equivalent Nb atoms to form distorted AlNb6 cuboctahedra that share corners with six equivalent CNb6 octahedra, edges with six equivalent AlNb6 cuboctahedra, and edges with six equivalent CNb6 octahedra. The corner-sharing octahedral tilt angles are 17°. C is bonded to six Nb atoms to form CNb6 octahedra that share corners with three equivalent AlNb6 cuboctahedra, corners with three equivalent CNb6 octahedra, edges with three equivalent AlNb6 cuboctahedra, and edges with nine equivalent CNb6 octahedra. The corner-sharing octahedral tilt angles are 0°.

Authors:
Publication Date:
Other Number(s):
mp-996161
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Collaborations:
MIT; UC Berkeley; Duke; U Louvain
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; Nb3AlC2; Al-C-Nb
OSTI Identifier:
1317060
DOI:
https://doi.org/10.17188/1317060

Citation Formats

The Materials Project. Materials Data on Nb3AlC2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1317060.
The Materials Project. Materials Data on Nb3AlC2 by Materials Project. United States. doi:https://doi.org/10.17188/1317060
The Materials Project. 2020. "Materials Data on Nb3AlC2 by Materials Project". United States. doi:https://doi.org/10.17188/1317060. https://www.osti.gov/servlets/purl/1317060. Pub date:Sat Jul 18 00:00:00 EDT 2020
@article{osti_1317060,
title = {Materials Data on Nb3AlC2 by Materials Project},
author = {The Materials Project},
abstractNote = {Nb3AlC2 is MAX Phase-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All Nb–Al bond lengths are 2.88 Å. All Nb–C bond lengths are 2.19 Å. In the second Nb site, Nb is bonded to six equivalent C atoms to form edge-sharing NbC6 octahedra. All Nb–C bond lengths are 2.25 Å. Al is bonded to six equivalent Nb atoms to form distorted AlNb6 cuboctahedra that share corners with six equivalent CNb6 octahedra, edges with six equivalent AlNb6 cuboctahedra, and edges with six equivalent CNb6 octahedra. The corner-sharing octahedral tilt angles are 17°. C is bonded to six Nb atoms to form CNb6 octahedra that share corners with three equivalent AlNb6 cuboctahedra, corners with three equivalent CNb6 octahedra, edges with three equivalent AlNb6 cuboctahedra, and edges with nine equivalent CNb6 octahedra. The corner-sharing octahedral tilt angles are 0°.},
doi = {10.17188/1317060},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}