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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Recent Developments in Biological, Structural and Functional Thin Films & Coatings
Presentation Title Exploring the Thermal and Mechanical Stability of Amorphous and Nanocrystalline Tantalum Films
Author(s) Khalid Hattar, Olivia Donaldson, Kathryn Small, Jason Trelewicz
On-Site Speaker (Planned) Khalid Hattar
Abstract Scope Refractory metals have found many applications in advanced aerospace, defense, nuclear energy, and high-speed transportation applications due to their mechanical stability at elevated temperatures. This presentation will detail the production of both amorphous and nanocrystalline tantalum thin films via pulsed laser deposition. This will be followed by direct observation of both films during in-situ TEM annealing. The amorphous films went through complex series of phase transitions breaking down around 1100 C. In contrast, the nanocrystalline films maintained a nanocrystalline structure up to 1200 C, which we have attributed to trace oxygen at the grain boundaries. In-situ TEM straining experiments on both microstructures was dominated by brittle fracture mechanisms.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3-D Printed Magnetic Polymers
Application of Synchrotron Techniques in Characterization of Metal Matrix Nano Composites
Applications for Multifunctional Systems: Balancing Industrial Need, Cost, Complexity and Sustainability
Approaches to Dry Metal Forming as Measure for Sustainable Production
Ceramic Nanofibers for High-temperature Gas Sensing Applications
Characterization and Performance Evaluation of Titanium Doped β-Ga2O3 Thin Films for Oxygen Sensors in Extreme Environment
Coating of 3D Printed Microlattices via Magnetron Sputtering
Control of Thin MoSe2 Layer in Cu(InGa)Se2-based Thin Film Solar Cell
Corrosion Studies of Martensitic Stainless Steel Blades
Coupling Electronic Structure to Atomistic Simulations for a Multi-scale Modelling of Realistic Materials
Decoration of Carbon Nanostructures by Metal and Metal Oxide Nanoparticles
Deformation, Failure and Fracture Mechanisms of ZrC-ZrB2 and Cu-ZrB2 Multilayered Nanostructures: An Atomistic Simulation Study
Effect of Refractory Metal Incorporation on Structural and Mechanical Properties of β-Ga2O3 Nanocrystalline Films for Extreme Environment Applications
Electro-deposited Cr Coating Layer to Hinder Fuel Cladding Chemical Interaction in Sodium Fast Reactor (SFR)
Examining the Long-term Adhesion Strength of Chitosan Bonded to Titanium when Exposed to the Atmosphere or Simulated Body Fluid
Exploring the Thermal and Mechanical Stability of Amorphous and Nanocrystalline Tantalum Films
Extending the Scope of Application of Thermal Sprayed Coatings by Using their Magnetic Properties
Formation & Characterization of Black Silicon by Reactive Ion Etching
Functional Thin Film Enabled Sensor Technologies for Harsh Environment Sensing Applications
Functionalization of Thermoset Composite Surfaces for Welding Technologies
Grain Boundary Engineering of Corrosion Resistant Aluminum Alloys
H-11: Effect of Interaction of CO Gas Molecules on Schottky Barrier Modulation of Pt-SnO2 Nanostructure Device
H-12: Nickel Oxide Thin Film Based Electrode for Cholesterol Monitoring Using Electrochemical Biosensor
H-13: Zinc Oxide Thin Film as a Guiding Layer for Love Wave Acoustic Biosensors
Hybrid PMMA-coating for Biomedical Applications
Influence of Pressure and Temperature on Chromic Materials and their Technological Applications
Influence of Very Low Frequency on Particles in Freely Suspended Single Floating Droplet
Magnetic Field Assisted Directed and Deterministic Assembly
Modeling, Deposition, and Characterization of Nano-crystalline Nitrides for Use in Optical Coatings
Nanoscale Heterogeneous Surfaces: How to Control Nanofriction in Biosensors?
Rare Earth-doped Tin Oxide and Zinc Oxide Thin Films for Photovoltaic Applications
Selective Oxidation of Tool Steel Surfaces under Protective Gas Atmosphere
Shaping of Ti/PMMA Sandwich Sheets for Biomedical Applications
Stresses and Strains Effect on Light Emission from Indirect-bandgap Semiconductors
Structural and Optical Properties of Tungsten Doped Hafnium Oxide Nanocrystalline Thin Films
Tunable Optical Constants and Solar Selectivity of Multilayer Films for Smart Window Applications

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