Abstract
Porous AISI 304L stainless steels were fabricated by a new powder metallurgy technique, based on the addition of oxide based ceramic powders. The mixture of AISI 304L stainless steel powders and oxide based ceramic powders was compacted using a hand press at a pressure of 294 or 490 MPa. The green compacts were sintered at 1150 or 1200°C for 3 h in Ar gas atmosphere. The addition of oxide based ceramic powders into AISI 304L stainless steel powders gave rise to porous AISI 304L stainless steels with fine pores. Also, the addition of the ceramic powders increased the hardness.
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