|About this Abstract
|2022 TMS Annual Meeting & Exhibition
|Additive Manufacturing for Energy Applications IV
|NOW ON-DEMAND ONLY - Direct Ink Writing of Ultra High Temperature Ceramics
|Swetha Chandrasekaran, Amy Wat, Qi Rong Yang, James Cahill, Wyatt Du Frane, Joshua Kuntz, Marcus Worsley
|On-Site Speaker (Planned)
Additive manufacturing (AM) of engineering materials that are lightweight and durable with excellent chemical and wear resistance continues to be an area of intense interest and study. Here,we demonstrate fabrication of ultra-high temperature ceramics such as boron carbide (B4C), zirconium diboride (ZrB2) and Hafnium diboride (HfB2) parts through direct ink writing at room temperature. 3D printed parts were made from aqueous, thixotropic ink with a solid loading ranging from 50.0 to 59 vol.%. The complex green bodies (B4C) are infiltrated with an aluminum matrix to obtain B4C-Al Cermets. 3D printing these ceramic materials could be used to optimize and design the lightweight armor materials or materials used for extreme applications. Complex shaped parts and parts with graded density can be easily fabricated through the DIW technique for molten metal infiltration to create Cermets which are used for ballistic testing devices. Prepared by LLNL under Contract DE-AC52-07NA27344.
|Additive Manufacturing, Ceramics, High-Temperature Materials