Bala Vaidhyanathan

Fast solid state synthesis of metal vanadates and chalcogenides using microwave irradiation

Metal vanadates and chalcogenides have been prepared in rapid time scales using a domestic microwave oven. The products exhibit high phase purity and homogeneity. The thermal and spectroscopic properties of the microwave prepared metal vanadates match well with those prepared by conventional methods.

Synthesis of β-SiC powder by use of microwave radiation

Monophasic β-SiC powder has been synthesized in a commercial microwave oven operating at 2450 MHz and power levels up to 980 W. This simple method of solid-state synthesis involves a direct reaction between silicon and charcoal powder at temperatures lower than 1250 K.

Microwave assisted fast solid state synthesis of niobates and titanates

Niobates and titanates are a technologically important class of inorganic materials.

Microwave assisted synthesis of technologically important transition metal silicides

LiNbO_3

Rapid microwave assisted synthesis of hydroxyapatite

(space group R3c) is ferroelectric, piezoelectric and exhibits high non-linear optic coefAEcient [1, 2]. NaNbO3 is orthorhombic and is antiferroelectric at room temperature [3].

Microwave synthesis and sintering of Ba(Mg1/3Ta2/3)O3

KNbO_3

Microwave Sintering of Ceramics: What Does it Offer?

has a perovskite structure, exhibits three structural transitions [4] and closely resembles barium titanate.

Evidence for non-thermal microwave effects using single and multimode hybrid conventional/microwave systems.

BaTiO_3

Heat flux mapping of oxyacetylene flames and their use to characterise Cf-HfB2 composites

is a well known perovskite with many applications in industry [5]. Binary and ternary lead titanates also exhibit interesting piezoelectric, pyroelectric and optoelectronic properties [6, 7]. Synthesis of these materials based on conventional ceramic methods involves extremely long reaction times due to slow diffusion rates in the solid state. For example, (i) the conventional ceramic preparation of

Oxyacetylene torch testing and microstructural characterization of tantalum carbide

LiNbO_3