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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 Carbon-Carbon Composite Materials from 3D Printed Preforms Graphitized by Electric Field Assisted Sintering
Author(s) Arin S. Preston, Jorgen Rufner, Joshua Kane, Troy Holland, Robert Fox, Blesson Isaac, Lu Cai, Kunal Mondal
On-Site Speaker (Planned) Arin S. Preston
Abstract Scope Formation of Carbon-Carbon (C-C) composite materials requires putting a carbon fiber preform through a cycle of densification, carbonization, and graphitization. In traditional furnaces this is quite time consuming as typical heating rates are low. C-C composites were formed by pyrolyzation of 3D-printed carbon fiber preforms, vacuum infiltration of naphthalene based mesophase pitch, and carbonization. The part was then graphitized in the Electric Field Assisted Sintering (EFAS) system. Graphitization of the composite matrix was achieved in less than an hour. A part density of over 1.6g/cc was achieved after two rounds of infiltration and a single graphitization. The process is significantly faster than traditional methods. SEM, XRD, and X-ray CT will be discussed to characterize the degree of graphitization, internal porosity, and evaluate the microstructure throughout the process. Mechanical testing of the part was performed showing the impact on fiber direction to strength of the final part.

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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