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Meeting MS&T22: 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 Microwave Sintering of Bioinspired Porous Alumina Foams
Author(s) Andre Lair Ferreira Cardoso, Claudia Patricia Fernandez Perdomo, Julia Alves Xaraba, Rodolfo Foster Klein Gunnewiek
On-Site Speaker (Planned) Andre Lair Ferreira Cardoso
Abstract Scope Ceramic foams find applications in numerous technological fields, such as filters, catalytic supports, among others. To produce these ceramics, the most employed method known is the replica technique. This method consists of impregnating a ceramic slurry in a polymeric foam, followed by thermal treatment to densify the open-celled ceramic structure. In nature, it is possible to find complex and regular structures, like the Luffa sp. sponges, which present a good alternative to the synthetic sponges used in this method. In this work, we evaluated the microwave sinterability of open-celled alumina foams produced by the replica technique, sintered at 1550, 1600, and 1650 °C, with soaking times of 15, 30, 45, and 60 minutes. These samples were compared with conventionally sintered samples and evaluated regarding their macro and microstructural homogeneity, densification, mechanical resistance, and fluid permeability. Acknowledgements: FAPESP (Grant numbers 2019/25921-8 and 2017/13769-1) CAPES (Finance code 001) and CNPq (Grant 140180/2021-4).

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Carbon-Carbon Composite Materials from 3D Printed Preforms Graphitized by Electric Field Assisted Sintering
Consolidating Tungsten in 2s at a Furnace Temperature of 900 oC using Flash Sintering Approach
Graphene Infused High Conductivity Copper
In-situ Diffraction of Ultrasonically-modified Phase Evolution in a Ternary Al-Si-Mg Alloy
K-19: Effect of Plasma Shielding in Laser Irradiation of Metal Targets with Bursts of Ultrashort Pulses
Mechanochemistry: From Scientific Mystery to Scalable Materials Preparation and Recycling Technique
Microwave Sintering of Bioinspired Porous Alumina Foams
Post-processing of Additively Manufactured 316 Stainless Steel by Electron Wind Force
Spatially Tuned Properties of Soft Magnetic Alloys by Transverse Induction Annealing
The Coupled Effect of Temperature and Electric Field on Diffusion Welding of Alloy 617 via Electric Field Assisted Sintering
Touch Free Flash Sintering of Ceramics
Using Organic Acids to Densify Ceramics

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