AI-NiTi Metal Matrix Composites for Next Gen Zero CTE Materials:Modeling and Fabrication

摘要

Macro and microstructural modeling are used to design and fabricate AI-NiTi composite materials made with ultrasonic additive manufacturing for thermal control applications. These composites utilize low volume fractions and have less than half the density of current low CTE materials such as invar. The modeling efforts are used to study the effects of fiber volume fraction and pre-strain and thus to identify optimal fabrication conditions.