Projects(2006AA03A145,2007AA03Z405) supported by the National High-Tech Research and Development Program of China;Projects(50721002,50802053) supported by the National Natural Science Foundation of China;Project (707039) supported by the Cultivation Fund of the Key Scientific and Technical Innovation Project,Ministry of Education of China
6H-SiC single crystals were grown by sublimation method. It is found that foreign grains occur frequently on the facets of the crystals. To characterize the foreign grain, a longitudinal and a sectional cut samples we...