ProgramMaster Logo
Conference Tools for Materials Science & Technology 2019
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
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 P2-70: Characterization of Graphite-Si-SiC Ceamics Processed by Microwave Assisted Reactive Melt Infiltration
Author(s) Elisa Padovano, Mauro Giorcelli , Giovanni Bianchi , Sara Biamino , Massimo Rovere , Alberto Tagliaferro , Alberto Ortona
On-Site Speaker (Planned) Elisa Padovano
Abstract Scope A novel kind of graphite-Si-SiC ceramics was successfully prepared by liquid silicon infiltration of graphite-based preforms; unlike the conventional methods, the reactive infiltration process was assisted by microwave. The effects of microwave power variation on the microstructure and the mechanical properties of infiltrated materials were investigated. X-ray diffraction and Raman investigations showed the presence of both unreacted graphite and Si, in addition to formed SiC. The graphitic and silicon phases were separated by a SiC network, which results more homogeneous as microwave power was increased. Moreover the amount of SiC increases as function of the growing microwave power level; a higher conversion of graphite into SiC yielded a more dense material. This is confirmed by bending strength measurements which show higher values for the samples processed using a power level of 75% of the full power compared to those obtained with 30% and 60%.
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

Questions about ProgramMaster? Contact programming@programmaster.org