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Dielectric properties of lead zirconium titanates with nanometer size grains synthesized by the citrate precursor route

Jha, P; Arya, P R; Ganguli, A K (2003)

Monophasic oxides of the formula, PbZrxTi1−xO3 (0.0≤x≤0.75) were obtained at temperatures close to 500 °C from polymeric precursors formed using citric acid and ethylene glycol. The oxides were found to be tetragonal for ...

(La0.4Ba0.4Ca0.2)(Mn0.4Ti0.6)O3: A new titano-manganate with a high dielectric constant and antiferromagnetic interactions

Jha, Pika; Rai, Sarita; Ramanujachary, Kandalam V; Lofland, Samuel E; Ganguli, Ashok K (2004)

A new perovskite-based titano-manganate, (La0.4Ba0.4Ca0.2)(Mn0.4Ti0.6)O3, has been prepared by the ceramic route at 1100°C. This oxide was found to possess the cubic perovskite structure with ‘a’=3.9477(23) Å (space group ...

Ba3ZnTa2−xNbxO9 and Ba3MgTa2−xNbxO9 (0≤x≤1): synthesis, structure and dielectric properties

Thirumal, M; Jawahar, I N; Surendiran, K P; Mohanan, P; Ganguli, A K (2002)

Oxides belonging to the families Ba3ZnTa2−xNbxO9 and Ba3MgTa2−xNbxO9 were synthesized by the solid state reaction route. Sintering temperatures of 1300°C led to oxides with disordered (cubic) perovskite structure. However, ...

Synthesis and microwave dielectric properties of Sr3Zn1−xMgxNb2O9 phases

Thirumal, Meganathan; Jawahar, Isuhak N; Surendiran, Kuzhichalil P; Mohanan, Pezholil; Ganguli, Ashok K (2002)

Oxides of the type, Sr3Zn1−xMgxNb2O9 (0≤x≤1) have been obtained by the ceramic method. These oxides crystallize in the hexagonal cell corresponding to ordered triple perovskites. Sintered disks show nearly frequency-independent ...

Ba3ZnTa2−xNbxO9 and Ba3MgTa2−xNbxO9: synthesis, structural and dielectric studies

Thirumal, M; Murugan, G Senthil; Varma, K B R; Ganguli, A K (2000)

Oxides of the families Ba3ZnTa2−xNbxO9 and Ba3MgTa2−xNbxO9 were obtained by the solid state reaction route at 1573 K and were found to crystallize in the disordered (cubic) perovskite structure. In Ba3ZnTa2−xNbxO9 and ...

Polymeric citrate precursor route to the synthesis of nano-sized barium lead titanates

Arya, P R; Jha, P; Subbanna, G N; Ganguli, A K (2003)

Monophasic oxides of the formula, Ba1−xPbxTiO3 (0≤x≤1.0) were obtained at temperatures close to 500 °C from polymeric precursors formed using citric acid and ethylene glycol. These oxides were found to be tetragonal for ...