|About this Abstract
||MS&T21: Materials Science & Technology
||Late News Poster Session
||P2-29: Porous Metal Micro-pillars by Thermomechanical Molding
||Shweta Jagdale, Golden Kumar
|On-Site Speaker (Planned)
Porous micro- and nano-pillars are extensively studied for characterization of size-effects. However, fabrication of porous micro-pillars requires multiple complex steps such as, focused-ion-beam and de-alloying. Here, we present a simple thermomechanical molding and selective etching to fabricate hundreds of porous micro-pillars simultaneously. Alloys containing two phases are molded into template cavities and one phase is subsequently etched to generate porosity. Pore size and porosity can be controlled by changing the size and fraction of initial phases. The porous pillars are attached to the substrate and are directly suitable for compression testing. The proof-of-concept is demonstrated by fabricating porous gold micro-pillars which are of interest for size-effects studied.