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 Refractory Metals
Presentation Title Hydrogen Reduction of Cobalt(II,III) oxide to make sub-micron and micron size cobalt metal powder for WC-Co synthesis
Author(s) Raj Pal Singh Gaur, Thomas J Jewett, Scott A Braymiller
On-Site Speaker (Planned) Raj Pal Singh Gaur
Abstract Scope This paper pertains to the hydrogen reduction of mixed valence cobalt oxide. The reduction of Co3O4 in hydrogen was studied via a design-of-experiment approach. The effect of three parameters i.e. temperature gradient (C/min), time of reduction (h) and temperature of reduction (C) was studied on the reduction of Co3O4 to cobalt metal powders. BET particle surface areas of cobalt powders were measured and used as a response for developing experimental conditions for making different. sizes of cobalt metal powders such as sub-micron, micron and extra-fine. Both temperature gradient (C/min) and reduction temperature (C) were found as significant factors. The proposed mechanism of the reduction of Co3O4 under various experimental conditions as well as the application of cobalt metal powders containing different particle sizes (FSSS) in WC-Co powders synthesis will be presented in this paper.
Proceedings Inclusion? Planned:
Keywords High-Temperature Materials, Powder Materials, Process Technology

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Bending Creep Deformation of ODS MoLa with 0.6 vs 1.1 wt.%La
Design of BCC high-entropy alloys with low neutron absorption cross-section
Design of MoWTaTiZr Refractory Multi-principal Element Alloys
Development of Heat-Treatable Crss-Cr3Si-based Alloys: Microstructure, Oxidation, and Creep
Development of novel chromium-superalloys strengthened by B2 intermetallic precipitates
Effect of heating rate and substrate on the oxidation behavior of hafnium aluminum diboride thin films
Flexible powder production for additive manufacturing of refractory metals and alloys
Flow behavior and associated microstructures of niobium at 1200 to 1500°C
Grain boundary doping as effective method to improve mechanical properties in ultra-fine grained tungsten
Grain Boundary Segregation Engineering in Technically Pure Molybdenum Examined via Three-point Bending Tests
High-throughput Engineering of Oxidation Behavior in complex refectory alloys
Hydrogen Reduction of Cobalt(II,III) oxide to make sub-micron and micron size cobalt metal powder for WC-Co synthesis
NanoPhase Separation Sintering in Mo and Mo-W Based Systems
Nanostructured tungsten alloys for nuclear fusion
Oxidation behavior of Mo-Si-B-Al alloys at elevated temperature
Platinum-based superalloys: Combating high temperatures and aggressive environments
Realizing sub-micron tungsten and tungsten composite microstructures via deformable punch spark plasma sintering
Refractory High Entropy Alloys for Applications in Extreme Environments
Studies on the phase formation of cobalt contacted with zinc vapour
Sustainability-based Selection of Materials for Refractory High Entropy Alloys
Tensile Properties of Molybdenum & ODS MoLa Sheet at Elevated Temperatures
The influence of impurities on the interfacial chemistry of niobium – alumina high-temperature refractories
The oxidation behavior of the eutectic alloy Mo-20Si-52,8Ti in dry and wet atmospheres
Thermal stability of thin rolled potassium-doped tungsten sheets at temperatures between 1100 C and 1400 C
Thermodynamic assessment of the V-Ti-B system
Tungsten grain optimization and composite fabrication for use in fusion reactors

Questions about ProgramMaster? Contact programming@programmaster.org