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Tuning Crosslinking of Hybrid Preceramic Polymers in Vat Photopolymerization Toward Controlled Ceramic Yields

Invention Reference Number

202405736
A closeup shot of a dental plaster model inside a scanner being scanned. Image from Envato

This invention focuses on improving the ceramic yield of preceramic polymers by tuning the crosslinking process that occurs during vat photopolymerization (VP). The technology optimizes the conversion of UV-curable preceramic polymers into high-quality ceramic materials, contributing to more efficient and sustainable manufacturing processes.

Description

Preceramic polymers are materials that, when subjected to pyrolysis, yield ceramics with properties suited for various applications in aerospace, electronics, biomedical devices, and energy storage. The process of crosslinking these polymers is crucial to their successful net shaping and conversion into ceramics. Crosslinking enhances the structural integrity and thermal stability of the material. However, during pyrolysis, the loss of volatile elements affects the final ceramic yield. This invention addresses the challenge by utilizing digital light processing (DLP) to precisely control the crosslinking of preceramic polymers before pyrolysis, leading to improved ceramic yields. The study demonstrates how the ceramic yield can be increased from 64% to over 86% by tuning the crosslinking process.

Benefits

  • Higher ceramic yields: The method significantly improves ceramic yield, increasing it from 64% to over 86%.
  • Energy and resource efficiency: The technology offers a more energy-efficient and sustainable way to process preceramic polymers, reducing waste generation and lowering the carbon footprint.
  • Cost-effective manufacturing: By optimizing the conversion process, the invention improves resource utilization, making the production of polymer-derived ceramics more economically viable.

Applications & Industries

  • Manufacturing science: The technology enhances 3D printing and additive manufacturing of ceramics, improving energy and resource efficiency.
  • Aerospace and defense industries: Potential use in the production of high-performance ceramic materials for aerospace applications.
  • Electronics and biomedical industries: The ability to create advanced ceramic materials for use in electronics and medical devices.

Contact

To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.