An approach to examination of thermal decomposition by novel evolved gas analysis

摘要

Pyrolysis behavior of remained carbon substances in hydrolysis products of aluminum alkoxides has been investigated with comparison of EGA-MS using capillary and skimmer interfaces. The technique with skimmer interface has a possibility to present new information on elimination processes of impurities in ceramic starting materials during its firing or sintering processes. As the pyrolysis, ethyl group were eliminated at higher temperature than butyl group. In the measurement with skimmer interface it results a possibility of polymerization of the ethyl group, since the skimmer has much less adsorption than the capillary.