Author/Authors :
Gille، نويسنده , , P. and Ziemer، نويسنده , , T. and Schmidt، نويسنده , , M. and Kovnir، نويسنده , , K. and Burkhardt، نويسنده , , U. and Armbrüster، نويسنده , , M.، نويسنده ,
Abstract :
Single crystal growth of PdGa which is a highly selective catalyst for the semi-hydrogenation of acetylene is reported for the first time. Bridgman as well as Czochralski methods were used starting from off-stoichiometric or congruent melting compositions. While Bridgman growth always resulted in polycrystalline ingots with individual grains restricted to a few millimeters in size, using the Czochralski technique from Ga-rich solutions allowed the growth of PdGa single crystals of several cubic centimeters.
Keywords :
A. Intermetallics , B. Phase diagram , G. Catalysis , C. Single crystal growth
