Micropillar compression testing of powders

• Main Authors: Huskins, Emily L. (Author), Schuster, Brian E. (Author), Cordero, Zachary Copoulos (Contributor), Schuh, Christopher A (Contributor)
• Other Authors: Massachusetts Institute of Technology. Center for Materials Science and Engineering (Contributor)
• Format: Article
• Language: English
• Published: Springer US, 2016-11-07T22:53:19Z.
• Subjects: Article
• Online Access: Get fulltext

An experimental design for microcompression on individual powder particles is proposed as a means of testing novel materials without the challenges associated with consolidation to produce bulk specimens. This framework is demonstrated on an amorphous tungsten alloy powder, and yields reproducible measurements of the yield strength (4.5 ± 0.3 GPa) and observations of the deformation mode (in this case, serrated flow by shear localization).
United States. Defense Threat Reduction Agency (Grant HDTRA1-11-1-0062)
American Society for Engineering Education. National Defense Science and Engineering Graduate Fellowship