Sinter reactive lanthanum chromite and process for making it

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 magnesium or calcium and x ranges from about 0.03 to 0.3, and sinters to densities higher than about 95% of theoretical density at temperature as low as 1600 DEG C. in inert or reducing atmospheres. Sintering to such high density at temperatures in the vicinity of 1600 DEG C. makes the powder particularly suited for use as interconnect material for solid oxide fuel cells.