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Meeting MS&T23: Materials Science & Technology
Symposium Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
Presentation Title The Role and Characterization of the Native Oxide Shell of Copper Metal Powder Spherical Particles During High Frequency Microwave Processing
Author(s) Morsi Mohamed Mahmoud, Guido Link, Manfred Thumm
On-Site Speaker (Planned) Morsi Mohamed Mahmoud
Abstract Scope The native oxide layer on Cu particles was qualitatively characterized using Auger electron spectroscopy (AES) with a rough thickness estimation due to limitations of the AES method and electron beam induced reduction. Moreover, it was quantitatively characterized with more confidence using a dual beam FIB /SEM system after coating Cu particles with Pt prior to any measurements using a special stage tilt setup to avoid any stage tilt correction and to eliminate any possible electron beam reduction. The layer was found to be inhomogeneously covering the particles surfaces where its thickness was strongly depending on particles’ sizes. Its thickness was ranging from around 22-67 nm for 10 Ám average particle size particles and from around 850 nm to 1050 nm for the particles with less than 149 Ám in diameter. In addition, Cu oxide was also observed inside the grains and along grain boundaries with minor amount.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Effects of Heat Treatment under External Magnetic Field on Microstructure and Mechanical Properties of Ferritic/Martensitic Steels
Effects on Aluminum Alloys During Heat Treatment in a Magnetic Field
High-speed Synchrotron X-ray Imaging of Microstructural Refinement Mechanisms During Ultrasonic Melt Processing in Metal Additive Manufacturing
Inhibition of Biofilm Formation on Glass Specimens when Subjected to AC Electromagnetic Fields of 20 kHz to 30 kHz
Microstructure Evolution and Property Enhancement of 3D-printed Graphene via Cold Rolling
Microwave Sintering for Lunar Base Construction
Microwave Synthesis of Cobalt Ferrite-reduced Graphene Oxide Composites
N-6: Improving Reliability of Ultrasonic Fatigue Testing through Comparative Analysis of Conventional and Ultrasonic Fatigue Tests on SS400 Material
N-7: Research on Green Laser Welding Process and Monitoring Technologies for Manufacturing Parts of Electric Vehicles
Post-processing of Irradiated FeCrAl by Electron Wind Force
Reviewing a Unified Phenomenological Comprehension on Non-thermal Effects in Microwave-assisted Materials Processing
The Role and Characterization of the Native Oxide Shell of Copper Metal Powder Spherical Particles During High Frequency Microwave Processing
Ultrasonic Vibration Acoustic Softening Effect on AISI 1018 Low-Carbon Steel

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