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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Powder Materials Processing and Fundamental Understanding
Presentation Title Low-oxygen Ti Powders Prepared from TiO2 through Combining Metallothermic Reduction with Electrochemical Reduction
Author(s) Xinyu Zhou, Zhihe Dou, Ting-an Zhang
On-Site Speaker (Planned) Xinyu Zhou
Abstract Scope In the present study, an effective and low-cost method is reported to prepare low-oxygen Ti powder, which includes two experimental steps: the fast conversion of TiO2 to TiOx<1 powder by metallothermic reduction process and the generation of low-oxygen Ti powder by electrochemical reduction process in molten CaCl2. The key intermediate steps were analyzed by XRD, SEM, and electrochemical testing techniques. The results demonstrated that TiOx<1 powder (TiO0.325 and TiO0.97) was generated after acid leaching the MgO in metallothermic reduced products, and the TiOx<1 powder with 16.3 wt% oxygen could be transformed into pure titanium powder with 500~700 ppm oxygen by electrochemical reduction at a constant potential of -1.8~-3.3 V for 10 h. The successful preparation of low-oxygen Ti powers reveals the potential and feasibility of our process and maybe provide a new sight for generating other active metal powders(Zr, Hf, or other Ti-based alloy powders).
Proceedings Inclusion? Planned:
Keywords Titanium, Powder Materials, Electrometallurgy

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Nanocrystalline Copper-Hafnium Alloy by Conformal Coating Powder Metallurgy: Microstructure and Thermomechanical Performance
A Sustainable Approach to Developing High-Entropy Alloys Using Commodity Powders: A Proof of Concept Using SPS, PBF-LB/M, and MIM
Aging Responses and Mechanical Properties of Al-Zn-Mg Alloys with high Zn Concentration
Alloy Developments and Microstructural Mechanisms of Improved Plasticity in a Cr-based Nanocrystalline Alloy
An Atomistic Modeling Study of Electric Field Effect on Sintering Mechanisms of Zirconia
Anisotropy in the Binder Jetting and Sintering Process of 316 Stainless Steel
Binder Jet Additive Manufacturing of Cemented Tungsten Carbide: Phase Evolution and Mechanical Response
C-27: Ultrasonic Powder Atomization of NiTi
Composition-Tunable Shrinkage for Ferrous Sintering Setters and Inserts
Controlling and Designing Thermal Gradients during FAST Processing of Titanium Alloy /Composite
Densification of Nanostructured Functional Materials: Innovative Combinations of Low-temperature Strategies
Design Overview and Operational Characteristics of a Custom Designed Continuous Electric Field Assisted Sintering System
Development of Powder Materials for Metal AM
High Entropy Nitrides: Spark Plasma Sintering of Mechanically Alloyed Nitrides to Investigate the Mechanical, Tribological, and Oxidation Properties
Hot Isostatic Pressing of Oxide Dispersion Strengthened Steels: Microstructure and Mechanical Properties
In Situ TEM Characterization of Sintering: New Insights into Densification Mechanisms
Influence of Printing Parameters on Sintering Shrinkage and its Anisotropy in Binder Jetting 3D Printing of AISI 316L Steel
Interface Energy Control for Improved Mechanical Properties in Oxide Nanoceramics
Keeping Dimensional and Geometrical Precision of Holes in 316L Parts Produced by Metal Binder Jetting – Study of the Influence of Size and Inclination
Loose Sintering of Physical Vapor Deposited Powders
Low-oxygen Ti Powders Prepared from TiO2 through Combining Metallothermic Reduction with Electrochemical Reduction
Micromechanical Properties and Microstructures of AC and DC Flash-sintered Alumina
Microstructures and Mechanical Properties of B4C/Al Composites Fabricated by Hot Pressing and Spark Plasma Sintering
Mixing Studies for Oxide Dispersion in IN718 ODS Superalloy
Plateau–Rayleigh Instability with a Grain Boundary Twist
PM Steels for New Energy Production Systems
Porosity Evolution during Heating of Copper Made from Powder by Friction Extrusion
Powder Extrusion of High-energy Ball-milled Particle-reinforced AlSi1MgMn for Lightweight Components
Powder Property Evolution during Die Compaction through Novel Experiments and Coordinated Modeling
Preparation, Structure, and Characterization of SFCA-I
Residual Stress Mapping Using Neutrons of Large-Scale Samples (12-inch Diameter) Created by Electric Field Assisted Sintering
Spark Plasma Sintering Coupled with Stereolithography for the Production of Titanium Complex Shapes
Spark Plasma Sintering of Carbides
Synergistic Enhancement of Mechanical and Tribological Properties in Inconel 718-GNP Composites Fabricated by High-Energy Ball Milling and Spark Plasma Sintering
The Efficient Optimization of Additive Manufacturing Parameters and Post-Build Processing Using Small Punch Test
The Influence of TiB2 Particles on the As-built and Heat Treated Microstructure of IN718 Processed by Direct Energy Deposition
The Strengthening and Deformation Mechanisms of Metal Matrix Nanocomposites
Tungsten Carbide with Low Metallic Binder Contents via Binder Jetting
Visualization of Eu2+/Eu3+ Coactivated BaAl2O4 Phosphor Using X-ray Nanobeam

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