High-temperature oxide alumo-yttrium fibers based on organo-yttrium oxane alumoxanes

5^th International Conference on Organic and Inorganic Chemistry

July 12-13, 2018 | Paris, France

Tatiana Apukhtina

State Research Institute for Chemistry and Technology of Organoelement Compounds, Russia

Posters & Accepted Abstracts: J Chemical Sci

Abstract :

High-temperature oxide alumo-yttrium fibers were prepared by melt-molding of fiber forming organo-yttrium oxane alumoxanes those were for the first time synthesized at GNIIChTEOS. The molding was carried out at temperature of 60�?°-150�?°C, with the following heat treatment in air at 1300�?°-1500�?°C. The obtained alumo-yttrium fibers were studied by physicochemical methods (SEM, IR, X-ray phase analysis). It is found that, depending on the molar ratio of Al:Y in the initial organo-yttrium oxane alumoxanes, the ceramic fibers consist of the following phases: corundum �?±-Al2O3, garnet Y3Al5O12 (YAG), YAlO3 (YAР) and Y4Al2O9 (YAM). It is known that these structures have high melting points. Therefore, the obtained fibers can be used to prepare high-heat-resistant and chemically inert ceramic composites.

Biography :

Tatiana Apukhtina has completed her PhD from State Research Institute for Chemistry and Technology of Organoelement Compounds. She is the Senior Researcher at the institute. Her scientific interests cover physical-mechanical and physical-chemical analysis of components of ceramic composite materials.

E-mail: tatiana.apukhtina@yandex.ru