Manufacturing & Prototyping

Making Flexible Ablators that are Flexible Char Formers

Ames Research Center, Moffett Field, California An approach was developed for making low-density, flexible ablators for a thermal protection system (TPS) from a flexible fibrous carbon substrate and a polymer resin. The material is foldable and stowable, and can be deployed in space without compromising performance. In addition, the material can be stowed in space for very long periods of time (years) without compromising deployability or performance. These flexible ablators offer an alternative to rigid TPS materials, thereby reducing design complexity and cost. On charring, the flexible ablative TPS retains its flexibility. After charring, the TPS has comparable flexibility and mechanical properties to the virgin material.

Posted in: Briefs, Manufacturing & Prototyping

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Method for Providing Semiconductors Having Self-Aligned Ion Implant

Refined self-aligned ion implantation for improved SiC high-temperature transistors. John H. Glenn Research Center, Cleveland, Ohio This is a modification to technology for realizing durable and stable electrical functionality of high-temperature transistors. This modification is believed crucial to experimental implementation of SiC junction field effect transistors that electrically operated continuously at 500 °C for over 10,000 hours in an air ambient with less than 10% change in operational transistor parameters.

Posted in: Briefs, Manufacturing & Prototyping

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Femtosecond Laser Processing of Metal and Plastics

Precision machining can be achieved with no thermal affects and minimal post-processing. Amada Miyachi America, Monrovia, California and Jenoptik, Jena, Germany While precise and fast, the down side to cutting with microsecond (ms) fiber lasers has been that the parts require a number of post-processing operations after they are cut, which add significantly to part cost, and can also damage mechanically delicate parts.

Posted in: Briefs, Manufacturing & Prototyping

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3D Printing Meets Astrophysics: A New Way to Visualize and Communicate Science

3D printing has the potential to considerably improve the astronomical community's ability to visualize, understand, interpret, and communicate important scientific results.

Posted in: On-Demand Webinars, Manufacturing & Prototyping

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Simulation of Microfluidic Devices Using COMSOL

Modeling and simulation form a systematic framework for developing and optimizing microfluidic systems. Such simulations often involve coupling multiple physical effects such as single- and multi-phase flow, mixing, dispensing, heat transfer, species transport and diffusion, chemical reactions, surface tension and wetting, electrokinetic effects, and flow interaction with biological material.

Posted in: On-Demand Webinars, Manufacturing & Prototyping

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Stratasys Extends Accessibility of Unique Triple-Jetting 3D Printing Technology with the Connex 1,2, and 3

Stratasys' triple-jetting technology is unique, allowing users to build products with up to three base materials in a single run, forming new Digital Materials such as Digital ABS or producing parts in vibrant colors. This technology 3D prints parts in a single, automated build with up to 80 material properties per part, ranging from rigid to rubber-like in a range of vibrant colors and a range of Shore A values producing exceptional final-product realism. The PolyJet Connex technology can create smooth, detailed, accurate molds.

Posted in: Tech Talks, Manufacturing & Prototyping

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Products of Tomorrow: May 2015

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial aircraft safety, increased accuracy in weather forecasting, and the miniature cameras in our cellphones are just some of the examples of NASA-developed technology used in products today.

Posted in: Articles, Products, Manufacturing & Prototyping

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