Processing-Microstructure-Property Maps for Metal Matrix Composite Developed by Ultrasonic Cavitation
Abstract
The proposed research aims to develop Òprocess mapsÓ for improved understanding of ultrasonic cavitation technique as a processing route for developing metal matrix composites. The motivation of this proposal is to use acoustic energy in the melt to de-agglomerate and disperse the nanoparticles, which is critical to obtain improved mechanical properties. These process maps will be developed by adding conventional SiC nanoparticles in Aluminum metal. The introduction of sonic energy in the melt is expected to alter solidification behavior, wetting and dispersion of nanoparticles, and grain growth in the composite. This, in turn, will influence the mechanical properties of the composite. This research seeks to answer the role of key ultrasonic processing variables, such as the amplitude of vibrations, sonication time, and melt temperature on the nanocomposite microstructure and mechanical properties. The knowledge of processing-microstructure-property relationships derived from Al-SiC process maps will be applied for incorporating a novel 1D fibrous Boron Nitride Nanotube (BNNT) in Al using cavitation technique. BNNT exhibits remarkable mechanical properties and excellent thermal stability, making it highly attractive nanoparticle for developing advanced metal matrix composites. This study seeks to open a new paradigm in the processing of advanced metal matrix composites using 1D (BNNT) and 3D (SiC) reinforcement by ultrasonic cavitation. This research has direct relevance to US Army. These advanced nanocomposites have applications in the development of lightweight and robust structures including ground and unmanned air vehicles. These high-strength nanocomposites are highly suited for diverse structural applications where weight-reduction is of critical importance. The proposed research will also greatly help educational efforts at Florida International University (FIU), which is a Hispanic Serving Institution with a student population of Hispanic 64%, African American 17%, and Females 12%. With such student demographics, FIU will make an extraordinary impact on minority participation in STEM education and research. Funding of this proposal will significantly enhance the ability to transfer our research experience to the students, the future DOD scientists/engineers and building blocks of the country s education and economy.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 11, 2019
- Source ID
- W911NF1910097
Entities
People
- Arvind Agarwal
Organizations
- Army Contracting Command
- Florida International University
- United States Army