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Meeting MS&T21: Materials Science & Technology
Symposium Nucleation of Solid-State Phase Transformations
Presentation Title P1-28: Structure Influenced Rapid Hydrogenation Using Metal-acid Contacts on Crystallographically Oriented VO2 Thin Films
Author(s) Komal Mulchandani, Ankit Soni, Krushna R Mavani
On-Site Speaker (Planned) Komal Mulchandani
Abstract Scope We report on the structure influenced hydrogenation via metal-acid contact method using novel detachable electrode-like design of metal on the edges of VO2 thin films. As temperature increases, VO2 shows the insulator to metal transition accompanied by a structural phase transition from monoclinic to rutile phase. The said method for hydrogenation is tested at different temperatures. A rapid diffusion rate of hydrogen is indicated by a drastically reduced room temperature resistance of the films hydrogenated at elevated temperatures. Moreover, when cooled down to room temperature, these films incline to partially retain a stable rutile phase. The process of hydrogenation becomes much faster and more effective when VO2 acquires the rutile phase i.e. at elevated temperature.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3-dimensional Observation of Bainite from Austenite Grain Boundary in 0.6wt% Carbon Steel.
Critical Nuclei at Hetero-phase Interfaces
Effect of Cooling Rate and Austenitic Grain Size on the Austenite Decomposition Kinetics in a Low- carbon Steel
Formation of the γ’’’-Ni2(Cr, Mo, W) Phase during Two-step Heat Treatment in Haynes® 244® Alloy
Identification of Critical Nucleation Events by the Gromov-Wasserstein Distance
Investigation of Nucleation Mechanisms Associated with the Formation of Coprecipitates in Ni-based Superalloys
Modeling Microstructure Evolution Using the Steepest-entropy-ascent Quantum Thermodynamic Framework
Observing the Solid-state Processes under Additive Manufacturing Conditions Inside the TEM
P1-28: Structure Influenced Rapid Hydrogenation Using Metal-acid Contacts on Crystallographically Oriented VO2 Thin Films

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