Several ways were explored to synthesize barium zirconate by soft chemistry methods in aqueous solution. In the first method the synthesis of barium zirconate was initiated by urea decomposition, through an homogeneous precipitation of barium and zirconium salts followed by a “low temperature” thermal treatment. The kinetic of the reaction and the optimum urea/cation ratio have been determined ...

<div><table cellspacing="0" cellpadding="0" align="right"><tbody><tr><td align="left" valign="top"><p>The aim of this research was to determine the mechanical strength AISI 4340 steel after pack carburizing with variation barium carbonate (BaCO<sub>3</sub>) and sodium (Na<sub>2</sub>CO<sub>3</sub>) as energizer. The various...