Authors:
Hagai Peled (1), Matti Ben Moshe (1)
Tritone Technologies Ltd., Israel
Abstract:
High-temperature materials with low thermal expansion are of interest for various applications such as shields, lenses, and microelectronics. Silicon carbide (SiC) is a hard, strong, and thermally conductive structural ceramic that retains its properties at high temperatures. Molybdenum refractory metal is also a strong corrosion-resistant material with low thermal expansion.
Additive manufacturing (AM) of printed pure SiC and Molybdenum parts is uncommon. Existing AM processes of SiC parts produce porous SiC structures that go through a silicon infiltration procedure to produce hybrid silicon-SiC structures. This study demonstrates the production of molybdenum metal and SiC ceramics by the MoldJet process, which utilizes a slurry-based feedstock to fill, layer-by-layer, inkjet-printed mold to produce high-density green parts with a volume density in the range of 60%. The SiC and Molybdenum green parts are than debinded and sintered to density volumes of over 99% and 95%, respectively, resulting in parts with exceptional properties.
DOI:
https://doi.org/10.59499/EP246275441
