Ultrasonic compaction of nanostructured powders
Abstract
Nanocrystalline materials have high strengths, high wear resistances, and other unique mechanical properties that make them ideal for structural applications. However, it remains a challenge to fabricate nanocrystalline materials in bulk forms using traditional manufacturing processes. The main issue is that the standard processing routes involve the densification of nanostructured feedstock at elevated temperatures, and such thermal excursions can cause grain growth and consequent property degradation. This STIR proposal aims to overcome these thermal stability issues by consolidating nanostructured powder feedstock using ultrasonic compaction as a low temperature densification method. Systematic ultrasonic compaction experiments will be used to identify the effects of ultrasonic compaction on the structure and properties of the powder compacts.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 11, 2018
- Source ID
- W911NF1710342
Entities
People
- Zachary C. Cordero
Organizations
- Army Contracting Command
- Rice University
- United States Army