抄録
A detailed structural analysis of the MgB2-xCx series at low doping levels (0 ≤ x ≤ 0.1) is presented. High-resolution synchrotron x-ray powder diffraction experiments show an extremely small miscibility of carbon within the boron sheets despite the structural analogy between MgB2 and graphite. Multiphase behavior is detected for x ≥ 0.04. The coexisting phases, isostructural with the parent MgB2 compound, differ mainly in their in-plane lattice constants, as evidenced by the splitting of the (hk0) Bragg reflections. All phases contain carbon in substitution for boron but in different concentrations.
本文言語 | English |
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ページ(範囲) | 3894-3897 |
ページ数 | 4 |
ジャーナル | Chemistry of Materials |
巻 | 14 |
号 | 9 |
DOI | |
出版ステータス | Published - 2002 9月 |
外部発表 | はい |
ASJC Scopus subject areas
- 材料化学
- 材料科学(全般)