ProgramMaster Logo
Conference Tools for 2022 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Materials Processing Fundamentals
Presentation Title Phase and Microstructural Analysis of In-situ Derived Alumina-TiB2 Composites
Author(s) Evangelos Daskalakis
On-Site Speaker (Planned) Evangelos Daskalakis
Abstract Scope The presentation focusses on the phase and microstructural evolution in laser-ignited ceramic composite based on alumina/ titanium diboride ceramic composite, in which the precursor materials are aluminium mixed with TiO2 and B2O3. The laser ignition of Al-TiO2-B2O3 mixture triggers a highly exothermic self-sustaining aluminothermic reaction (Al+TiO2+B2O3, DH= 2,736 J/kg) in the absence of atmospheric oxygen. Consequently, a ceramic phase mixture consisting of alumina and TiB2 forms spontaneously, showing a range of morphologies of phases formed. The results of the phase microstructural analysis of the reaction products formed from the furnace-ignited and quasi-pulsed 976 nm laser-ignited (30 W maximum output) are compared. The porosity, effective density, and micro-hardness properties are compared for controlling the process parameters, namely the metallic particle size, milling time and frequency, and power density of laser for triggering the flash combustion reaction. We have also modelled the process heat flow for characterising the microstructure.
Proceedings Inclusion? Planned:
Keywords Composites, Phase Transformations, Characterization

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Anomalous Temperature Effect on Diffusion-controlled Solidification Time during Diffusion Brazing
Comprehensive Recovery of Pressure Acid Leaching Residue of Zinc Sulfide Concentrate
Effect of Laser Heat Treatment and Nitrogen Content in Shielding Gas on Precipitation of Widmanstätten Austenite in Lap Laser Welds of Duplex Stainless Steels
Evaluation of Phase Relations for the Al-Cu-Mg-Si-Zn System around Eutectic Composition
Experimental Phase Diagram Study in CaO-MgO-V2O5 System
F-33: Phase Equilibria in the Ag–Ge–Bi–Te System and Thermodynamic Properties of the nGeTe×mBi2Te3 (n, m = 1-4) Layered Compounds
Finite Element Analysis Modeling of Gravity-driven Multiple Effect Thermal System (G-METS) Distillation for Efficient Low-cost Magnesium Refining
Measurement of Thermodynamic Property of Mg in Molten Iron at 1823 K by Transpiration Method
NOW ON-DEMAND ONLY – Strategies for the Upgrade of a TBZC Product (Tetra Basic Zinc Chloride) by Selective Removal of the Impurity Chlorine
Parametric Study of Mold Electromagnetic Stirring: Effects of Load Condition and Copper Resistivity
Phase and Microstructural Analysis of In-situ Derived Alumina-TiB2 Composites
Potentiostatic Electrodeposition of Ti-Al Alloy with 40% Titanium from the Lewis Acidic 1-butyl-3-methylimidazolium Chloride-aluminum Chloride Ionic Liquid Electrolyte
Prediction of Distribution of Composition of Inclusion in Continuous Casting Bloom of the Heavy Rail Steel Coupling Element Segregation, Heat Transfer and Kinetics
Pulsed Electric Current Joining of Oxide-dispersion-strengthened Austenitic Steels
Site Preference of Ti in 6H-SiC: A Combined Photoluminescence and Theoretical Calculation Study
Study of γ'-Fe4N Material Annealing through Molecular Dynamics Modeling
Study on the Interface Structure and Element Distribution of Manganese-containing Slag
Thermodynamic Properties of Sulfur in the CaO–AlO1.5–CeO1.5 Slag System at 1873 K
Thermoelectric Magnetohydrodynamic Control of Melt Pool Dynamics and Microstructure Evolution in Direct Energy Deposition Additive Manufacturing
Time Variation of Concentration-dependent Interdiffusion Coefficient
Ultrasonics in Levitating Droplets
Voltammetric Investigations of the Dissolution of Copper in Acidic Cupric Chloride Solutions Containing Additional Dissolved Cuprous Ions

Questions about ProgramMaster? Contact programming@programmaster.org