Issue 4, 2018

Phase equilibria and crystal structure relationships in the ternary Li–B–C system

Abstract

Phase equilibria in the Li–B–C ternary system have been investigated by X-ray powder diffraction, scanning electron microscopy, electron probe microanalysis and differential scanning calorimetry. The isothermal section of the phase diagram has been constructed over the whole concentration range at 400 °C. The Li–B–C system is characterized by the formation of six ternary compounds: τ1 – LiBC3, τ2 – LiB2C2, τ3 – LiBC, τ4 – Li2B2C, τ5 – LiB6C and τ6 – LiB13C2. The formation of the new ternary compound LiB2C2 (own structure type, space group P63/mmc, a = 2.5930(3) Å, c = 22.680(1) Å) and binary BC3 (space group P[6 with combining macron]m2, a = 2.4588(4) Å, c = 6.770(2) Å) has been revealed. The crystal structures are discussed in the light of the underlying graphene and heterographene networks.

Graphical abstract: Phase equilibria and crystal structure relationships in the ternary Li–B–C system

Article information

Article type
Research Article
Submitted
12 Dec 2017
Accepted
01 Feb 2018
First published
02 Feb 2018

Inorg. Chem. Front., 2018,5, 853-863

Phase equilibria and crystal structure relationships in the ternary Li–B–C system

V. Milashius, V. Pavlyuk, G. Dmytriv and H. Ehrenberg, Inorg. Chem. Front., 2018, 5, 853 DOI: 10.1039/C7QI00787F

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