K.C. Patil

Combustion synthesis of fine-particle metal aluminates

Fine-particle metal aluminates, MAl2O4 where M=Mg, Ca, Sr, Ba, Mn, Co, Ni, Cu and Zn as well as 3CaO · Al2O3 (C3A), CaAl12O19 (CA6) and MgCeAl11O19 have been prepared by the combustion of mixtures of the respective metal nitrates (oxidizers) and urea or carbohydrazide (fuels) at 500 or 350‡ C, respectively, over a time of 5 min. The solid combustion products were identified by their characteristic X-ray powder diffraction patterns. The fine-particle nature of these metal aluminates was investigated using SEM, TEM, particle size analysis and surface area measurements. The surface areas of the as-prepared metal aluminates using carbohydrazide fuel were higher (45 to 85 m2 g−1) compared with urea (1 to 20 m2 g−1).

Synthesis and properties of Eu2+ activated blue phosphors

Blue phosphors

Combustion synthesis of fine particle rare earth orthoaluminates and yttrium aluminum garnet

Eu^{2+}

Synthesis, characterisation and thermal properties of hydrazinium metal oxalate hydrates. crystal and molecular structure of hydrazinium copper oxalate monohydrate

activated

Low-temperature preparation of fine-particle cobaltites

BaMgAl_{1O}O_{17},BaMg_2Al_{16}O_{27}, xBaO.6Al_2O_3

Preparation and properties of fine particle nickel-zinc ferrites : a comparative study of combustion and precursor methods

where x=0.64-1.8 and

Combustion synthesis of fine-particle ceria

LaMgAl_{11}O_{19}

A one-step process for the preparation ofγ-Fe2O3

have been prepared by the combustion of corresponding metal nitrates (oxidizer) and carbohydrazide (CH)/diformyl hydrazine (DFH)/urea (fuel) redox mixture at

Synthesis, characterization, and properties of lead-based relaxor ferroelectrics

400/5OO^oC

Oxide-ion conductivity of calcia- and yttria-stabilized zirconias prepared by a rapid-combustion route

within 5 min. The phosphors were characterized by exposure to UV light, powder XRD, fluroescence and electron paramagnetic resonance spectroscopy. The phosphors showed a characteristic emission band in the region 435-462 nm when they were excited at 254 nm. With an increase in barium content in