Porous Permeable Cermet Materials Based on Iron Oxides with Additions of Ground Polymetal Ores

Abstract

Self-propagating high-temperature synthesis (SHS) is used to prepare heat-resistant porous permeable cermet material (PPCM) based on a mixture composed of alloy steel scale powder and oxides of metals and polymetal (monazite). The SHS-material obtained may be used as a catalytic agent for cleaning diesel exhaust gases. In this case instead of expensive rare-earth elements (REE) cerium and thorium ground complex ores containing these REE may be used. The effect of monazite content up to 18 wt.% in a charge on physicomechanical and service properties of the prepared materials is considered.