AIR-SINTERABLE LANTHANUM CHROMITE AND PROCESS FOR ITS PREPARATION

摘要

A sinter-reactive lanthanum chromite powder is prepared from the lanthanum chromite precursor LaCr1-xMxO3 (Adsorbate). The powder is crystalline, has the formula LaCr1-xMxO3, where M is selected from the group consisting of zinc, copper and mixtures thereof and x ranges from about 0.02 to 0.2, and sinters to densities higher than about 95% of theoretical density at temperature as low as 1400 degrees C. in oxidizing atmospheres. Sintering to such high density at temperatures in the vicinity of 1400 degrees C. makes the powder particularly suited for use as interconnect material for solid oxide fuel cells.