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Untersuchungen in den systemen: Chrom-Bor-Kohlenstoff, Mangan-Bor-Kohlenstoff und Mangan-Germanium-Kohlenstoff

Investigations within the ternary systems:Cr-B-C, Mn-B-C andMn-Ge-C

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Abstract

A new monoboride phase CrB displaying a δ-MoB-CrB-type transposition (shift) structure has been detected in alloys which were prepared at relatively low temperatures. Furthermore a Cr-rich boride phase not yet characterized was observed. The mutual solubility of the respective Cr-carbides and borides is insignificant for 1000°C. Under the same conditions a phase close to MnB has been found besides the known MnB (FeB-type). The new phase crystallizes with a structure similar to the CrB-type, however some additional clarification is needed. Carbon-boron substitution in Mn23C6 extends to almost Mn23B3C3. Germanium and carbon stabilize γ-Mn solid solutions towards lower temperatures. Besides the ordering phenomenon there is an almost continuous transition between γ-Mn(Ge, C) solid solutions and the perovskite carbide Mn3GeC x . Indications for the existence of derivatives of the perovskite carbides were observed.

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Literatur

  1. 1

    V. A. Epelbaum, N. G. Sevast'yanov, M. A. Gurevich, B. F. Ormont undG. S. Zhdanov, J. Neorg. Khim.8, 1848 (1957).

  2. 2

    M. L. Borlera undG. Pradelli, La metallurgia italiana, n. 2, 61 (1971).

  3. 3

    B. Aronsson, T. Lundström undSt. Rundqvist, Borides, Silicides and Phosphides. London: Methuen. 1965.

  4. 4

    T. Lundström, Arkiv Kemi31, 227 (1969).

  5. 5

    H. Boller, W. Rieger undH. Nowotny, Mh. Chem.95, 1497 (1964).

  6. 6

    S. Andersson undT. Lundström, Acta Chem. Scand.22, 3103 (1968).

  7. 7

    Y. D. Kondrashev, Kristallogr. [Russ.]11, 559 (1966).

  8. 8

    M. Picon undJ. Flahaut, C. r. hebdomad. Sé. Acad. Sci.245, 62 (1957).

  9. 9

    J. P. Bouchaud undR. Fruchart, Bull. Soc. Chim. France1964, 1579.

  10. 10

    L. Y. Markovskii undE. T. Besruk, J. Prikl. Khim.2, 258 (1966).

  11. 11

    H. H. Stadelmaier undJ. B. Ballance, Z. Metallkde.58, 449 (1967).

  12. 12

    H. H. Stadelmaier undR. A. Gregg, Metall17, 412 (1963).

  13. 13

    V. S. Telegus undY. B. Kuz'ma, Wisnik L'wiw Derzh. Univ., Ser. Khim.1969, Nr. 11, 21; Chem. Abstr.74, 46 567w.

  14. 14

    E. Parthé, Acta Cryst.20, 572 (1966).

  15. 15

    K. E. Spear undP. W. Gilles, J. High Temp. Sci.1, 86 (1969).

  16. 16

    M. Laridjani, M. Bigarre undA. Guinier, Mém. Sci. Rev. Métallurg.67, 1675 (1970).

  17. 17

    U. Zwicker, Metallkde.42, 246, 327 (1951).

  18. 18

    L. J. Hütter undH. H. Stadelmaier, Z. Metallkde.50, 199 (1959).

  19. 19

    H. Boller, Mh. Chem.99, 2444 (1968).

  20. 20

    H. Boller, Mh. Chem.100, 1471 (1969).

  21. 21

    E. Th. Henig undE. Wachtel, J. Less-Common Met.21, 223 (1970).

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Papesch, G., Nowotny, H. & Benesovsky, F. Untersuchungen in den systemen: Chrom-Bor-Kohlenstoff, Mangan-Bor-Kohlenstoff und Mangan-Germanium-Kohlenstoff. Monatshefte für Chemie 104, 933–942 (1973). https://doi.org/10.1007/BF00903907

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