Materials & Coatings

Coming Soon - Specifying & Achieving Desired Extrusion Performance

In Conjunction with SAE

Since 2012, the usage of extruded aluminum shapes in North American light vehicles has grown by more than 50%, to over 25 pounds per vehicle. Today, aluminum extrusions can be found in applications as varied as crush cans, trim members, rocker sections and seat backs – each with a unique set of performance requirements. As automotive aluminum extrusion applications continue to grow, engineers seeking optimized performance are increasingly going beyond the “shorthand” of alloy and temper designation and specifying the desired microstructure for the final component.

Posted in: On-Demand Webinars, Upcoming Webinars, Automotive, Materials, Metals
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Sound-Off: How to Repair Parylene Coatings

Conformal coatings like Parylene protect a variety of components, including LEDs, sensors, and circuit card assemblies. If a board component needs to be replaced, however, how easily can the Parylene be removed?

Posted in: News, Coatings & Adhesives, Materials
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The Use of Parylene as an Advanced Conformal Coating for Increased Reliability

Heightened demands for performance and reliability often require conformal coating solutions to provide protection from threatening environments. This is particularly true in the dynamic world of electronic devices where increased complexity on smaller and smaller components poses new challenges for design and manufacturing engineers alike. Device and component manufacturers often seek key competitive advantages through the use of conformal coatings, with the driving force to enhance one or more specific properties. Included may be electrical and barrier properties, dry film lubricity or biocompatibility.

Posted in: On-Demand Webinars, Upcoming Webinars, Coatings & Adhesives
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3D Printing’s Impact on the Value Chain

Over the past several decades, 3D printing has expanded into markets in unique ways as innovators have embraced the technology. It wasn’t until the last few years, however, that its potential has been more broadly realized. During this awakening, there has been a rise in claims that the technology will disrupt traditional value chains. However, most businesses who utilize 3D printing have not yet witnessed changes due to a slow moving shift in corporate leaders’ understanding of the technology’s business value.

Posted in: White Papers, Aerospace, Manufacturing & Prototyping, Coatings & Adhesives, Materials
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Absorbent Polymer Reinforcing Fiber

This material improves mechanical properties without degrading their absorption performance.

Absorbent polymers can be used, for instance, to absorb hydrocarbons from an aqueous medium such as the absorption of oil from water. In some configurations, conventional absorbent polymers are contained within a permeable material; for example, conventional spill “socks” and booms can hold an absorbent polymer within a fabric to enable the absorbent polymer to be applied directly to the site of interest. Moreover, conventional absorbent booms can float on a water surface to help contain a spill from spreading beyond the boom. This application, however, requires the absorbent polymer to be contained within a permeable membrane or fabric.

Posted in: Briefs, Materials
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TiBor Skin Composite Coatings

TiBor Skin is a two-part technology that creates toughened, corrosion- and wear-resistant composite structures. The technology consists of coatings or surface materials for application on metals, plus methods of applying these materials. It also provides methods of integrating the applied coatings with their substrates to form composite structures, the surfaces of which wear and corrode at rates much lower than those currently experienced in the industry.

Posted in: Briefs, Materials
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Customizable Recyclable Launch Packaging

NASA is developing a sustainable in-space manufacturing ecosystem by providing both the capability to create 3D printer filament from currently used packaging material as well as the development of new, high-performance packaging architectures created with materials that are well suited for use in 3D printing. NASA’s in-space manufacturing program supports Earth-based technology development to enable technologies and research on the International Space Station (ISS) and for deep space missions. In 2014, a 3D printer was installed and used successfully on the ISS, creating the first additively manufactured part in space. While additive manufacturing is a game-changing technology for in-space repairs and part formation, it still requires a plastic feedstock material to fabricate the printed parts. Without a recycling capability, long-duration and long-distance missions would require a large supply of feedstock that would either need to be stored onboard, taking up both mass and cargo space, or delivered in expensive resupply missions to enable the continued usage of the 3D printer.

Posted in: Briefs, Materials
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Self-Lubricating Hard Coatings for Extreme Environments

These coatings demonstrated substantial 1 to 2 orders of magnitude improvement in wear resistance.

NASA’ s space goals include a permanent presence on the Moon and an expedition to Mars. The success of habitats and vehicles on the Moon and Mars — and ultimately, of the human exploration of and permanent human presence on the Moon and Mars — is critically dependent on the correct and reliable operation of many moving mechanical assemblies. These harsh environments include severe dust, extreme cold and heat, and high vacuum, which make the use of liquid lubrication systems impractical. Potential threats common to both the Moon and Mars are low ambient temperatures, wide daily temperature swings (thermal cycling), solar flux, cosmic radiation, and large quantities of dust. The surface of Mars provides the additional challenges of dust storms, wind, and a carbon dioxide atmosphere. It is essential, therefore, to develop specialized mechanical components, such as bearings and gears, and to develop proper, long-life solid lubrication systems/coatings for each application.

Posted in: Briefs, Materials
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Self-Healing, Self-Lubricating Tribofilm

This technology could improve the efficiency and durability of engines and other moving metal parts.

Tribologists have developed a diamond-like film that is generated by the heat and pressure of an automotive engine. The ultra-durable, self-lubricating tribofilm — a film that forms between moving surfaces — can be made to develop self-healing, diamondlike carbon (DLC) tribofilms. The film generates itself by breaking down the molecules of the lubricating oil, and can regenerate the tribofilm as it is worn away.

Posted in: Briefs, Materials
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Functionally Graded Metal-Metal Composite Structures

This structure can be used in pressure vessels, ballistic-impact-resistant structures, and metallic glass alloys.

NASA Langley Research Center has developed a functionally graded metal-metal composite structure. The structure is created using a method that avoids deleterious reactions between the different metal constituents, as would be observed via conventional melt processing. The results are unique alloy compositions and arrangements not typically available through conventional processing routes.

Posted in: Briefs, Materials
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