A method for producing a heat-resisting compound oxide in which first
oxide particles are made to carry second fine particles having near
charging characteristics. Said first oxide particles or their precursors
are caused, before said first oxide particles or their precursors are
caused to adsorb said first oxide particles or their precursors, to
adsorb a predetermined acid or base so that they may be charged inversely
of said second fine particles or their precursors to be adsorbed thereby.
Said first oxide particles are caused to adsorb said second fine
particles through said acid or base and are sintered to carry the same.