Chemischer Transport fester Lösungen, 26 [1]. Untersuchungen zur Mischphasenbildung und zum chemischen Transport in den Systemen TiS2/NbS2, TiSe2/NbSe2, NbS2/TaS2 und NbSe2/TaSe2 / Chemical Vapour Transport of Solid Solutions, 26 [1]. Formation of Mixed Phases and Chemical Vapour Transport in the Systems TiS2/NbS2, TiSe2/NbSe2, NbS2/TaS2 and NbSe2/TaSe2

Abstract

In the systems TiS2/NbS2, TiSe2/NbSe2, NbS2/TaS2 und NbSe2/TaSe2 complete miscibility in the solid state has been observed by powder X-ray investigations. Mixed crystals as well as the binary compounds can be prepared by chemical vapour transport reactions using iodine as transport agent in the temperature gradient 1000→900 °C. The gaseous species TiI3(g), TiI4(g), NbI4(g) and TaI4(g) are responsible for the transport effect.