Fabrication of Porous Bulk Metallic Glass

摘要

An open-cell porous bulk metallic glass (BMG) with a diameter of at least 6 mm was fabricated by using an U-turnquartz tube and infiltration casting around soluble NaCl placeholders. The pore formation and glassy structure wereexamined by optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). The resultsshow that the pores or cells are connected to each other and the specimen is composed of a mostly glassy phase.This paper provides a suitable method for fabrication of porous BMG and BMG with larger size in diameter.