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Meeting Materials Science & Technology 2019
Symposium Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
Presentation Title Ultrasonic and Vibration Enhanced Materials Processing
Author(s) William LaCourse, Kade McGarrity, Brian Topper, Holly Shulman, Amit Maha, Volker Geyer
On-Site Speaker (Planned) William LaCourse
Abstract Scope Ultrasonic enhanced processing, an important industrial tool, is based on cavitation effects in liquids and/or induced mechanical stresses in viscous liquids and in solids. The present paper reviews existing and potential applications in processing and post-forming modification of polymers, glasses and ceramics, primarily by vibration-altered, stress-assisted diffusion and viscous flow processes. Proposed solid-surface modification by cavitation induced surface diffusion is also considered. Current and potential applications in processing include: 1: Glass melting, fining and homogenization 2: Sintering – Cold sintering. 3: Extrusion and molded optics. 4: Rapid annealing and enhanced stabilization of glass structures at high viscosity (> 1012 Pa-s). 5: Accelerated, and/or spatially enhanced ion-exchange and chemical strengthening. Mechanisms for enhanced diffusion and viscous flow limited processes are described. Current opportunities and the factors limiting wide-spread use, e.g.the lack of suitable high temperature materials, are discussed.
Proceedings Inclusion? Planned: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced In-Line Nanocrystallization of Amorphous Metal Ribbon (AMR) Alloys Through Mechanical and Electromagnetic Fields
An Irreversible Thermodynamic Perspective on Chemical Reaction Kinetics in Ceramic Processing under Resonant Microwave-fields
Characterization of the Native Thin Oxide Layer of Copper Metal Powder Sintered via Microwaves
Effect of Alternating Electromagnetic Field on Extracellular Polymeric Substances Derived from Biofilms And Its Mechanism
Effect of Pulsed Electric Current on Metastable Austenitic Steel
Effective Permittivity of Metal/Ceramic Composites and Microwave Heating Characteristics
Electric Current Annealing of Zircaloy Alloy and Associated Mechanisms
Electro-pulse and High Magnetic Field Annealing of Cold-Rolled NiFe
Exploration of Phase Transformations in alnico and its Implications for Magnetic Annealing
In-situ High Spatial Resolution Two-color Thermography in Micrwoave Selective Heating System
Locally Activated Solution Processing Would be Preferable Than General Hydrothermal/Solvothermal Processing Using Autoclaves
Magnetic Field-assisted Electrodeposition of Nickel Composite Coatings
Magnetic Field-Assisted Freeze Casting of Porous Ceramic Structures
Microwave Effects in Heterogenous Materials: A Study on Catalysis
Modeling Microstructural Evolution under Applied Magnetic Fields
P2-70: Characterization of Graphite-Si-SiC Ceamics Processed by Microwave Assisted Reactive Melt Infiltration
Proposal of Mining Method of Methane Hydrate by Microwave
Radio Frequency and Microwave Heating of Preceramic Polymers and its Application in Silicon Carbide Processing
Stage I Laser Flash Sintering
Surface-charge Mobility Theory: An Explanation for Certain "Microwave Effects"
Thermal Analysis of a High Temperature Coaxial Dielectric Test Cell
Ultrasonic and Vibration Enhanced Materials Processing
Vapor Dephosphorization Kinetics from Steel Making Slag by Microwave Rapid Heating

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