Porous structures and method and apparatus for forming porous structures

摘要

A porous medium comprises a first plurality of inorganic regions having a first nominal size. The medium also has a second plurality of second inorganic regions having a second nominal size. The first nominal size is less than the second nominal size and the first plurality of inorganic regions is interspersed between the second plurality of inorganic regions. A plurality of bonds are interposed between the first plurality of inorganic regions and the second plurality of inorganic regions. A method of forming such a porous medium is also disclosed.