Patent ID: 9656900
Date: 2017-05-23
CPC Classifications: C03B,C03C,Y10T

Claim:
1. A method of fabricating a nano-macroporous glass, the method comprising the steps of: (a) combining a glass powder having an average particle size of about 10 to about 500 μm and interconnected spinodal phase separation with a water soluble pore former to form a mixture; (b) pressing the mixture to form a green compact; (c) exposing the green compact to an aqueous solution at a selected temperature and for a time sufficient to dissolve at least some of the water soluble pore former to form a macroporous green compact characterized by interconnected macropores having an average diameter of greater than about 100 μm; (d) heating the macroporous green compact to a temperature and for a time sufficient to decompose any remaining water soluble pore former, sinter said glass powder, and induce additional spinodal phase separation; and (e) leaching said interconnected spinodal phase separation to form interconnected nanopores, wherein leaching does not form macropores.