Blog posts

Call for Abstracts, ASME 2017 IMECE, 3-9 November 2017, Tampa, Florida

Track: Materials: Genetics to Structures

Symposium: 11‐6 Phase Transformations in Materials Processing and Their Effects on Mechanical Properties

Highly porous alumina-zirconia ceramics were produced by adding space-holder materials during freeze casting. To increase the strength of porous ceramics, different amounts of nanoadditives (silicon carbide-SiC, silica-SiO₂, and multi-wall carbon nanotubes-CNTs) were added. Space-holder materials were removed by preheating, and solid samples were produced by sintering. Up to 68% porosity was achieved when 40% space-holder was added to the solid load of slurry. Wall thicknesses between pores were more uniform and thinner when nanoadditives were added.

Advances in fabrication technologies are enabling the production of architected materials with unprecedented properties. Most such materials are characterized by a fixed geometry, but in the design of some materials it is possible to incorporate internal mechanisms capable of reconfiguring their spatial architecture, and in this way to enable tunable functionality.

A research group at Iowa State University (https://www.aere.iastate.edu/lmxiong/) is looking for research assistants in the field of solid mechanics, computational mechanics, computational materials science and engineering. Research topics will fall into a broad area of modeling and simulation of mechanical and transport behaviors, such as plasticity, fracture, phase transformation, thermal transport, or mass transport, in a variety of engineering materials.