合作资讯 | Lithoz 和 ORNL 推进 3D 打印非氧化物陶瓷的开发

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标签：#3D printing

合作研发协议专注于开发用于极端温度应用的非氧化物陶瓷

The Cooperative Research and Development Agreement focuses on the development of non-oxide ceramics for extreme temperature applications

高性能陶瓷材料和3D打印机制造商Lithoz与美国能源部橡树岭国家实验室（ORNL）签署了合作研发协议（CRADA），将利用Lithoz的3D打印技术进一步探索非氧化物陶瓷的加工和增材制造。

Lithoz, a high-performance ceramic materials and 3D printer manufacturer, and theUS Department of Energy’s (DOE) Oak Ridge National Laboratory (ORNL)have signed a Cooperative Research and Development Agreement (CRADA) to useLithoz’s 3D printing technologyto further explore the processing and additive manufacturing of non-oxide ceramics.

基于激光诱导滑移铸造（LIS）技术，Lithoz 3D打印机使用激光浆料干燥或网络成型技术，通过受激发射辐射来引导计算机控制的光放大，从而干燥悬浮在受控固体层中的液体。合作协议的目标是开发用于极端温度应用的高折射率非氧化物陶瓷成型技术，如碳化硅。

Based on Laser-Induced Slipcasting (LIS) technology, the Lithoz 3D printer uses laser slurry drying, or net shaping, technology to guide computer-controlled light amplification by stimulated emission of radiation that desiccate liquid-suspended controlled layers of solids. The goal of the cooperative agreement is to develop the technology to shape non-oxide ceramics with high-refractive indexes, such as silicon carbide, for use in extreme temperature applications.

石版印刷陶瓷零件 Lithoz printed ceramic parts

Lithoz最近推出了其LIS技术，以生产比传统成型技术更复杂、规模更大的零件。通过结合复杂的内部通道和3D打印的复杂设计，与当前的方法相比，它可以生产的零件更轻、更高效。这项技术还能够通过处理碳化硅和氮化硅等深色陶瓷，以其他工艺无法实现的方式，增加可以打印的材料范围。

Lithoz recently launched its LIS technology to produce parts that are far more complex in geometry and larger in scale than can be achieved using conventional molding techniques. By incorporating intricate inner channels and 3D printable complex designs, the parts it can produce are lighter and more efficient when compared with current methods. This technology is also capable of increasing the range of materials that can be printed by processing dark ceramics, such as silicon carbide and silicon nitride, in a way that is unachievable with other processes.

该项目的目标是将超高温陶瓷零件的生产规模扩大到工业水平。该团队将通过使用普通氧化物陶瓷材料评估其技术能力来开发这项技术。这将涉及对成型部件的主要材料（如氮化硅和碳化硅，这两种航空航天应用的高需求物质）进行印刷和脱脂。通过加热，这种物质将被烧结成固体材料。然后将测试印刷材料的性能和特性。

The goal of this project is to scale up the production of ultra-high-temperature ceramic parts to an industrial level. The team will look to develop this technology by assessing its technical capabilities using a common oxide-ceramic material. This will involve printing and debinding the primary material – such as silicon nitride and silicon carbide, two highly in-demand substances for aerospace applications – from the molded component. Using heat, the substance will be sintered into a solid material. The performance and properties of the printed materials will then be tested.

“该项目将建立在ORNL多年来开发和测试高温材料和陶瓷的研究基础上，”ORNL极端环境材料处理集团的科学家Corson Cramer说。“通过将我们的专业知识与Lithoz 3D打印能力相结合，我们有可能改变用于热交换、航空航天和国防应用的高温陶瓷加工概念。”

“This project will build on ORNL’s years of research in developing and testing high-temperature materials and ceramics,” said Corson Cramer, Extreme Environment Materials Processing Group staff scientist at ORNL. “By combining our expertise with Lithoz 3D printing capabilities, we have the potential to change the concept of high-temperature ceramics processing for heat exchange, aerospace, and defense applications.”

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