Briefs : Information Technology
EXOS Software

An improved version of EXOS software allows for the modeling of fabrics, mixtures, and porous materials, and also provides the ability to accept hex mesh geometries. The code employs a novel numerical method, a hybrid particle finite element approach, as well as particles and elements in tandem, each modeling distinct aspects of...

Briefs : Materials
Using Paraffin Phase Change Material to Make Optical Communication-Type Payloads Thermally Self-Sufficient for Operation in Orion Crew Module

The Orion Crew Module has a pressurized cabin of approximately 20 m3 in volume. There are a number of cold plates within the Crew Module for thermal management. An optical communication type of payload...

Briefs : Materials
Smart MMOD Thermal Blanket

This innovation provides for significantly improved protection from micrometeoroid and orbital debris (MMOD) particles, and reliably determines the location, depth, and extent of MMOD impact damage.

Briefs : Materials
Using Black Polyimide/Kevlar as a Metering Structure Multi-Layer Insulation (MLI)

Metering structures of remote sensing instruments often have large openings or access holes. Shear panels that are X-shaped, such as those proposed for the Neutron Star Interior Composition Explorer (NICER), generally consist of C-channels and L-brackets to...

Briefs : Materials
Surface-Modified Nanoparticles Made From High-Molecular-Weight Carboxylic Acids

An improved class of alumoxanes and a method of synthesizing them have been invented. Alumoxanes are aluminum oxy hydroxide particles that have been modified with compounds containing carboxylic acid groups. For typical applications in which alumoxanes are required...

Briefs : Materials
NASA PS400 High-Temperature Solid Lubricant Coating

NASA has an ongoing need for high-temperature solid lubricant coatings to reduce friction and wear in turbine engines, rocket engines, and other mechanical systems. Such lubricants must be thermally and chemically stable in air, vacuum, and reducing environments like hydrogen. Traditional...

Briefs : Materials
Triple Orthogonal Disk Polymer Discrete Space for Cryogenic Feedline Insulation

NASA vehicles using cryogenic propellants and systems need improved cryogenic storage and transfer, including insulation for cryogenic transfer/feed lines. Wrapped multi-layer insulation (WMLI) is an innovative, next-generation, high-performance multilayer insulation...

Briefs : Materials
Lightweight, Flexible, Energy-Manageable Polymer Nanocomposites

Solar energy has attracted keen attention because it is a unique, clean, and sustainable energy resource. It is also widely utilized as a power source in space exploration. A lightweight, durable, deployable, and highly efficient all polymer-based solar power panel was developed...

Briefs : Materials
Nanocomposites for Radiation Shielding

Currently, lead and lead-based materials are used to fabricate shields not only for X-rays, but also for other types of radiation. With the growing environmental concern about the toxicity of lead, and the high costs associated with transporting heavy lead-based shields in spacecraft, alternatives are...

Briefs : Materials
Advanced Protective Coatings for Graphite Substrates

The purpose of this innovation is to develop advanced multilayered coating architectures to protect graphite substrates from hot hydrogen attack. The concept consists of coating the graphite substrate with metallic and non-metallic layers consisting of ZrC; Nb, Mo, and/or Nb-Mo alloy; and/or...

Briefs : Materials
Regenerable Trace-Contaminant Sorbent for the Primary Life Support System (PLSS)

The NASA objective of expanding the human experience into the far reaches of space requires the development of regenerable life support systems. This work addresses the development of a regenerable air-revitalization system for trace-contaminant (TC) removal for the...

Briefs : Materials
Lithium Fluoride as a Polysulfide Shuttle Inhibitor for Lithium Sulfur Chemistry

In a lithium sulfur cell, the reduction of sulfur to lithium sulfide is a critical series of reactions that provides a large theoretical capacity of 1,672 mAh/g sulfur. One of many challenges in this system is the solubility of generated lithium polysulfides during...

Briefs : Energy
White, Electrically Conductive, Radiation-Stable, Thermal Control Coating

A highly reflective, white conductive coating system was developed using a layered approach with a combination of commercially available white conductive pigments within a conductive binder system. The top coating is a space-stable, radiation-resistant, highly reflective...

Briefs : Materials
Plasma-Assisted Thin Film Coatings to Create Highly Hydrophobic Porous Structures

Gas-distribution layers (GDLs) are water-management structures used in fuel cells and electrolyzers. GDLs are critical components that prevent flooding of the fuel cell electrode by product water, thus preserving open channels for reactant gas to reach the...

Briefs : Materials
Modeling Transmission Effects on Multilayer Insulation

New mathematical modeling of multilayer insulation performance extends over a much wider range of performance criteria than other known models.

Recent experimental results within the NASA community have shown apparent degradation in the performance of multilayer insulation (MLI)...

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