SYNTHESIS AND SINTERING OF NANOCRYSTALLINE BARIUM-TITANATE POWDER UNDER NONISOTHERMAL CONDITIONS - III - CHROMATOGRAPHIC ANALYSIS OF BARIUMTITANYL-OXALATE GASEOUS DECOMPOSITION PRODUCTS

Gas chromatography is performed during the decomposition of barium tit anyl-oxalate and the subsequent synthesis of barium titanate under non isothermal conditions. It is shown that the path of the decomposition process is different under different heating conditions. A new mechani sm of barium titanyl-oxalate decomposition and subsequent barium titan ate synthesis under high heating rates is suggested. The change in mec hanism is caused by barium titanyl-oxalate oxidation by free oxygen.