Chapter 28. New II-IV-V2 Family of Periodic Compounds Synthesized Under High Pressure

  1. John B. Wachtman Jr.
  1. T. Endo,
  2. H. Takizawa and
  3. M. Shimada

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313978.ch28

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10

How to Cite

Endo, T., Takizawa, H. and Shimada, M. (1994) New II-IV-V2 Family of Periodic Compounds Synthesized Under High Pressure, in Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313978.ch28

Author Information

  1. Fac. of Engrg., Tohoku University, Sendai City 980, Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375198

Online ISBN: 9780470313978

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Keywords:

  • matrix stresses;
  • reinforcements;
  • nanocomposites;
  • dislocation;
  • fabrication

Summary

The high pressure and temperature reaction was responsible for the formation of stoichiometric ZnSiP2 and ZnGeP2 with zinc-blende and chalcopyrite structures. The optical and electrical properties of these compounds were examined and discussed on the basis of a quasicubic model. New periodic compounds, ZnSiN2 and ZnGeN2 were prepared under conditions of 4.0 to 7.7 GPa and 800 to 1500°C.

Both of them were identified as distorted wurtzite type structure. Solid solution, ZnSil-xGexN2 was also obtained with a volume change of the orthorombic unit cell corresponding to the discrepancy of atomic radii. The optical band gap has a tendency to shift linearly from 5.23 eV to 3.45 eV with increasing the value of x.