Materials & Coatings

High-Temperature, Hydrophobic, Flexible Aerogel Composite and Method of Making Same

This technology is well suited for environments requiring insulation materials that can withstand temperatures of up to 1200 °C.

NASA’s Glenn Research Center (GRC) has developed a method for fabricating low-density, flexible aerogel composites for use as thermal insulation for myriad applications. It is ideal for a variety of environments that require insulation materials that can withstand temperatures of up to 1200 °C. This innovation significantly advances the state of the art for composite insulation systems, reducing adherence problems and thermal conductivity limitations of conventional aerogel insulations while improving performance with lower weight, lower density, and higher efficiency, all factors contributing to greater applicability of aerogel insulation.

Posted in: Briefs, Materials, Performance upgrades, Fabrication, Composite materials, Insulation
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Mechanical Components from Highly Recoverable, Low Apparent Modulus Materials

Shock-resistant material eliminates corrosion and polishes to a smooth surface finish.

NASA’s Glenn Research Center has developed a new method for producing a shock- and corrosion-proof, superelastic, intermetallic material, NiTiNOL 60 (60NiTi), for use in ball bearings and other mechanical components. These superelastic materials can withstand tremendous loads and stresses without permanent deformation or denting. At the same time, the nickel-titanium alloy is immune to corrosion and rust, unlike mechanical components made from iron or steel. In addition, the material does not chemically degrade or break down lubricants, a common problem with existing bearing materials. This material is best suited for oil-lubricated rolling and sliding contact applications requiring superior and intrinsic corrosion resistance, electrical conductivity, and non-magnetic properties.

Posted in: Briefs, Materials, Lubricating oils, Materials properties, Nickel alloys, Titanium alloys, Bearings, Durability
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Polyimide Wire Insulation Repair System

This technology provides permanent, flexible, and less intrusive wire repairs.

NASA’s Kennedy Space Center (KSC) seeks to license its Polyimide Wire Insulation Repair System technology to industry. The Polyimide Wire Insulation Repair System is a kit consisting of thin film polyimide patches that are applied to damaged areas of wire insulation with a heating device that adheres the polyimide repair film into place. The technology has been prototyped and successfully tested by NASA and the Naval Air Systems Command (NAVAIR). Wire repairs made with this system are permanent, flexible, and much less intrusive than repairs made using current techniques and materials. The technology is well suited for all applications of polyimide and other high-performance polymer- jacketed wire constructions.

Posted in: Briefs, Composites, Materials, Electric cables, Wiring, Maintenance, repair, and service operations, Insulation, Polymers
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Lightweight, Flexible Thermal Protection System for Fire Protection

This technology can be used by wildland firefighters and first responders.

CHIEFS (Convective Heating Im provement for Emergency Fire Shelters) is being developed by NASA’s Langley Research Center to potentially improve the performance of emergency fire shelters for wildland firefighters. A fire shelter is a last-resort safety measure that may protect firefighters entrapped by wildfire that has compromised their escape route. The current shelter design, resembling a small foldable tent, is primarily designed to protect the user from exposure from radiant heat. It provides limited protection when exposed to direct flame contact and convective heat. The Washington Office Fire and Aviation Management (WO-FAM) initiated a product review for the fire shelters to be completed by 2018. NASA is working closely with the USDA Forest Service to understand the emergency fire shelter requirements and testing procedures.

Posted in: Briefs, Materials, Product development, Insulation, Fire fighting, Protective structures, Rescue and emergency vehicles and equipment
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Editor's Choice: January 2017

The Convective Heating Improvement for Emergency Fire Shelters (CHIEFS) material can improve the performance of emergency fire shelters for wildland firefighters. The material is based on technology developed for planetary exploration mission heat shields. Fire shelters are the last resort for firefighters trapped by wildfires that block their escape routes. The CHIEFS system can withstand temperatures to 3000 °F. Click here to find out more.

Posted in: UpFront, Aerospace, Energy Harvesting, Materials
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Simulating Material Migration

Accurately tracking and predicting the subsurface migration of specific materials over time and over multiple phases is critical to efficient and effective strategy development and deployment in a growing number of applications. STOMP (Sub surface Transport Over Multiple Phases) is a general-purpose tool that provides multidimensional analysis of subsurface flow and reactive transport phenomena. It was originally designed to support environmental remediation of subsurfaces contaminated with volatile organic compounds and/or radioactive material.

Posted in: Articles, Materials, Simulation Software, Computer simulation, Materials properties
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High-Speed Cameras Help Digital Image Correlation Show Its Strength

Digital Image Correlation (DIC) using high-speed cameras is gaining in popularity as a method for measuring material deformation and strain. That popularity is based on some real advantages of DIC over traditional sensors, and supported by advances in camera capabilities, integrator software, and new measurement techniques.

Posted in: White Papers, Coatings & Adhesives, Materials, Physical Sciences, Test & Measurement
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Understanding Low Outgassing Adhesives

Engineers often want to know whether an adhesive is low outgassing or generic. While there are cases when nothing but a low outgassing product will do, the truth is that many so-called generic adhesives inherently have low outgassing levels. What's more, most bonding, potting, encapsulation and sealing applications don't need to meet a defined outgassing specification. Check out Master Bond’s guide to understanding when low outgassing adhesives are the right choice.

Posted in: White Papers, White Papers, Coatings & Adhesives, Materials, Medical
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Shape Memory Alloy Rock Splitters (SMARS)

NASA’s Glenn Research Center has developed a groundbreaking method for using shape memory alloys (SMAs) to split apart rock formations without explosives or hydraulics.

Posted in: On-Demand Webinars, Aerospace, Materials
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Integrating Novel Materials to Improve Medical Device Performance

Today’s implantables are highly engineered assemblies with multiple complex elements that require innovative materials and sophisticated manufacturing. The development and use of new and novel materials and processes has enabled advances in both medical device performance and patient safety. Whether it’s a lighter material, a smoother surface, or a process that can be automated and repeatable, advanced technologies such as scratch-free surfaces or specialized coatings for stimulation can help extend or improve the life of implantable devices.

Posted in: White Papers, White Papers, Coatings & Adhesives, Materials, Bio-Medical, Medical, Lasers & Laser Systems, Photonics
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