Microwave-flash combustion synthesis of yttria nanopowders

Mangalaraja RV; Ramam, KVS; Ravi, J; Camurri, CP

Abstract

Single phase yttria nanopowders for transparent ceramics were successfully prepared by using a novel approach called microwave-flash combustion technique. This technique involves the reaction of yttrium nitrate and urea in microwave oven for few minutes. The as-prepared precursor powder was later calcined at 1100°C for 4h to form cubic crystalline yttria nanopowders. The as-prepared and calcined powders were analysed by such methods as thermogravimetry, Brunauer-Emmett-Teller surface area measurement, X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The results confirmed that the yttria powder synthesized by microwave-flash combustion was homogeneous and the particles size was in the range of 50-120 nm for calcined powders.

Más información

Título según WOS: Microwave-flash combustion synthesis of yttria nanopowders
Título según SCOPUS: Microwave-flash combustion synthesis of yttria nanopowders
Título de la Revista: MATERIALS SCIENCE-POLAND
Volumen: 25
Número: 4
Editorial: Oficyna Wydawnicza Politechniki Wroclawskiej
Fecha de publicación: 2007
Página de inicio: 1075
Página final: 1080
Idioma: English
Notas: ISI, SCOPUS