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The approach uses a new resin formulation invented by Zak Eckel, HRL’s senior chemical engineer, and Chaoyin Zhou, HRL’s senior chemist. The resin can be 3-D printed into parts of almost any size and shape and then can be fired at 1,000°C, converting the material to a fully dense ceramic that is 10 times stronger than comparable materials. Processing ceramics is more challenging than processing other materials— polymers or metals—because they cannot be cast or machined easily. Traditional processing methods consolidate ceramic parts from powders by sintering, which introduces porosity and limits the shape and strength of finished parts. “With our new 3-D printing process we can take full advantage of the many desirable properties of this silicon oxycarbide ceramic, including high hardness, strength, and temperature capability as well as resistance to abrasion and corrosion,” Tobias Schaedler, program manager at HRL, says in the release. An HRL video explaining the new milestone in 3-D printing technology is available at youtu.be/K15VyqHN11E. The technology has a range of potential applications across many industries— specifically in the production of large components in jet engines, parts for hypersonic vehicles, intricate parts in microelectromechanical systems, and even electronic device packaging. The paper, recently published in Science, is “Additive manufacturing of polymer-derived ceramics” (DOI: 10.1126/science.aad2688). n HEXOLOY® The Sustainable Solution in the Harshest Environments American Ceramic Society Bulletin, Vol. 95, No. 3 | www.ceramics.org 7 Credit: HRL Laboratories LLC; YouTube HRL Laboratories’ new 3-D printing process fabricates ceramics that can withstand high temperatures. Corrosion & Heat Problems that SHUT YOU DOWN ■ Universal corrosion resistance in extremely high temperatures; small to large complex shape & tight tolerance capabilities. ■ Our customers minimize maintenance, energy & downtime costs, reduce emissions & maximize productivity through Saint-Gobain Engineered Ceramics' innovation & relentless sustainability focus. ■ Leverage Saint-Gobain's global footprint, technical resources & manufacturing operations to solve your most difficult problems. For more information, technical data and case studies contact: SCD.sales@saint-gobain.com 716-278-6263 Visit our NEW website: refractories.saint-gobain.com See us at Ceramics Expo, booth #1108


apr16
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