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Research and Technology

Materials

Universal Responses of Cyclic-Oxidation Models Studied
Alloy Design Workbench--Surface Modeling Package Developed
Ballistic Impact Response of Advanced Silicide Alloys Tested in the IHPTET Program
Versatile Turbine Disk Alloy Designed and Processed for Higher Temperature Applications
Superalloy Disk With a Dual Grain Structure Spin Tested
High-Temperature Oxidation-Resistant and Low Coefficient of Thermal Expansion NiAl-Base Bond Coat Developed for Turbine Blade Application
Superior Ballistic Impact Performance Achieved by the Co-Base Alloy Haynes 25
Alloy Design Data Generated for B2-Ordered Compounds
Superalloy Lattice Block Developed for Use in Lightweight, High-Temperature Structures
Processing Methods Established To Fabricate Porous Oxide Ceramic Spheres for thermal Barrier Coating Applications
Creep Resistance of ZrO2 Ceramic Improved by the Addition of a Small Amount of Er2O3
Oxidation of Carbon Fibers in a Cracked Ceramic Matrix Composite Modeled as a Function of Temperature
Cooled Ceramic Composite Panel Successfully Tested in Rocket Combustion Facility
Uncooled C/SiC Composite Chamber Tested Successfully in Rocket Combustion Lab
Ultra-High-Temperature Ceramics Evaluated for Aeropropulsion Use
Polymer/Silicate Nanocomposites Developed for Improved Strength and Thermal Stability
New Method Developed To Purify Single Wall Carbon Nanotubes for Aerospace Applications
High-Temperature Polymer Composites Studied for Space Propulsion Applications
Multiple Knudsen Cell Configuration Improved for Alloy Activity Studies
Studies Conducted on Sodium Carbonate Contaminant Found on the Wing Leading Edge and the Nose Cap of the Space Shuttle Orbiter
Advanced Environmental Barrier Coatings Developed for SiC/SiC Composites Vanes
Low Thermal Conductivity Thermal Barrier Coatings Developed
New Oxide Ceramic Developed for Superior High-Temperature Wear Resistance
NASA Glenn/AADC-Rolls Royce Collaborated to Measure Erosion Resistance on Coated Polymer Matrix Composites
Oxidation of Carbon Fibers in Water Vapor Studied
NiAl Coatings Investigated for Use in Reusable Launch Vehicles
Combustor and Vane Features and Components Tested in a Gas Turbine Environment

Power & on-Board Propulsion Technology

New Voltage and Current Thresholds Determined for Sustained Space Plasma Arcing
System Analysis Initiated for All-Electric Aircraft Propulsion
Polymer Energy Rechargeable System Battery Being Developed
High-Power Hall Thruster Technology Evaluated for Primary Propulsion Applications
Development Efforts Expanded in Ion Propulsion: Ion Thrusters Developed With Higher Power Levels
Pulsed Plasma Thruster (PPT) Technology: Earth Observing-1 PPT Operational and Advanced Components Being Developed
New Technique of High-Performance Torque Control Developed for Induction Machines
New Active Optical Technique Developed for Measuring Low-Earth-Orbit Atomic Oxygen Erosion of Polymers
Thermal Contributions to the Degradation of Ground-Laboratory- and Space-Irradiated Teflon Investigated
Greener Method Developed for Intercalating Graphite Fibers With Bromine
Solar Selective Coatings Prepared From Thin-Film Molecular Mixtures and Evaluated
Power Electronics Being Developed for Deep Space Cryogenic Applications
Microelectromechanical System (MEMS) Device Being Developed for Active Cooling and Temperature Control
Three-Dimensional Magnetic Analysis Technique Developed for Evaluating Stirling Convertor Linear Alternators
Brayton Power Conversion Unit Tested--Provides a Path to Future High-Power Electric Propulsion Missions
Stirling Convertor Technologies Being Developed for a Stirling Radioisotope Generator
Mercury Conditions for the Messenger Mission Simulated in High-Solar-Radiation Vacuum Tests

Instrumentation and Controls

Advanced Packaging Technology Used in Fabricating a High-Temperature Silicon Carbide Pressure Sensor
Packaging Technology Designed, Fabricated, and Assembled for High-Temperature SiC Microsystems
Thin-Film Air-Mass-Flow Sensor of Improved Design Developed
Microfabricated Gas Sensors Demonstrated in Fire and Emission Applications
Silicon Carbide Nanotube Synthesized
Improved Silicon Carbide Crystals Grown From Atomically Flat Surfaces
Multiwavelength Pyrometer Developed for Use at Elevated Temperatures in Aerospace Applications
Collaboration of the NASA Glenn Research Center and Rolls-Royce Developed Thin Film Multilayered Dielectrics for Harsh Environments
Fiber-Optic Bragg Gratings and Optical Holography Compared as Vibration Detectors
High-Temperature Sprayable Phosphor Coating Developed for Measuring Surface Temperatures
Optical Tweezers Array and Nimble Tweezers Probe Generated by Spatial-Light Modulator
Mobile Sensor Technologies Being Developed
Rayleigh Scattering Diagnostic Used to Measure Velocity and Density Fluctuation Spectra
Microelectromechanical Systems (MEMS) Broadband Light Source
Digital Particle Image Velocimetry (DPIV) Used for Space-Time Correlations in Nozzle Flow
Compressor Performance Enhanced by Active Flow Control Over Stator Vanes
Active Control of High-Frequency Combustor Instability Demonstrated
Data-Mining Toolset Developed for Determining Turbine Engine Part Life Consumption
Performance Enhancement of Unsteady Ejectors Investigated Using a Pulsejet Driver

Communications Technology

Aerospace Communications Security Technologies Demonstrated
Multibeam Phased-Array Antennas Developed and Characterized
Fiber-Optic Network Architectures for Onboard Avionics Applications Investigated
Laser-Ablated Ba0.50Sr0.50TiO3/LaAlO3 Films Analyzed Statistically for Microwave Applications
Effects of a Scanning Reflectarray Antenna on Modulated Data Modeled
Quantum Sensing and Communications Being Developed for Nanotechnology
Space Networking Demonstrated for Distributed Human-Robotic Planetary Exploration

Turbomachinery and Propulsion Systems

Mechanisms of Rotating Instability in Axial Compressors Investigated
Two-Stage Axial Compressor Rig Designed To Develop and Validate Advanced Aerodynamic Technologies
Centrifugal Compressor Surge Controlled
Significance of Compressor Blade Row Interactions on Loss Production Investigated
Glenn-HT Code Validated for Complex Turbine Blade Cooling Passage
National Combustion Code Validated Against Lean Direct Injection Flow Field Data
High-Pressure Gaseous Burner (HPGB) Facility Became Operational
Spontaneous Raman Scattering (SRS) System for Calibrating High-Pressure Flames Became Operational
Nanotechnology Investigated for Future Gelled and Metallized Gelled Fuels
Solid Hydrogen Particles and Flow Rates Analyzed for Atomic Fuels
Low NOx, Lean Direct Wall injection Combustor Concept Developed
Large-Eddy Simulation Code Developed for Propulsion Applications
Sound Sources Identified in High-Speed Jets by Correlating Flow Density Fluctuations With Far-Field Noise
Air-Breathing Launch Vehicle Technology Being Developed

Structures and Acoustics

High-Fidelity Micromechanics Model Enhanced for Multiphase Particulate Materials
Structural Anomalies Detected in Ceramic Matrix Composites Using Combined Nondestructive Evaluation and Finite Element Analysis (NDE and FEA)
Thermal Response of Cooled Silicon Nitride Plate Due to Thermal Conductivity Effects Analyzed
Methods Developed by the Tools for Engine Diagnostics Task to Monitor and Predict Rotor Damage in Real Time
Hydrostatic Stress Effects Incorporated Into the Analysis of the High-Strain-Rate Deformation of Polymer Matrix Composites
Delaminations Investigated With Ultrasonic Spectroscopy
Fretting Fatigue of Gamma TiAl Studied
Strength Differential Measured in Inconel 718: Effects of Hydrostatic Pressure Studied
Flaw Detection for Composite Materials Improved by Advanced Thermal Image Reconstruction Techniques
A Step Made Toward Designing Microelectromechanical (MEMS) Structures With High Reliability
High-Performance Acousto-Ultrasonic Scan System Being Developed
Methodology Improved for Estimating Life Prediction Parameters for the Design of Industrial Components
Life-Prediction Parameters of Sapphire Determined for the Design of a Space Station Combustion Facility Window
Time-Dependent Material Data Essential for the Durability Analysis of Composite Flywheels Provided by Compressive Experiments
Particulate Titanium Matrix Composites Tested--Show Promise for Space Propulsion Applications
Unsteady Flowfield in a High Pressure Turbine Modeled by TURBO
High-Frequency Testing of Composite Fan Vanes With Erosion-Resistant Coating Conducted
Optimal Controller Tested for a Magnetically Suspended Five-Axis Dynamic Spin Rig
Ultra-High-Power-Density Motor Being Developed for Future Aircraft
Spin Testing for Durability Began on a Self-Tuning Impact Damper for Turbomachinery Blades
Flywheel Upgraded for Systems Research
Active Blade Vibration Control Being Developed and Tested
Noninterference Systems Developed for Measuring and Monitoring Rotor Blade Vibrations
New Tools Being Developed for Engine-Airframe Blade-Out Structural Simulations
Experimental and Analytical Studies of Smart Morphing Structures Being Conducted
Explicit Finite Element Techniques Used to Characterize Splashdown of the Space Shuttle Solid Rocket Booster Aft Skirt
Analytical Failure Prediction Method Developed for Woven and Braided Composites
Dynamic Spin Rig Upgraded With a Five-Axis-Controlled Three-Magnetic-Bearing Support System With Forward Excitation
Neural Network and Regression Methods Demonstrated in the Design Optimization of a Subsonic Aircraft
Magnetic Suspension Being Developed for Future Lube-Free Turbomachinery Application
Probabilistic Aeroelastic Analysis Developed for Turbomachinery Components
Fast Running Aeroelastic Code Based on Unsteady Linearized Aerodynamic Solver Developed
Forward-Swept Fan Flutter Calculated Using TURBO Code
Influence of Shock Wave on the Flutter Behavior of Fan Blades Investigated
Fan Noise Source Diagnostic Test Completed and Documented
Spiral-Bevel-Gear Damage Detected Using Decision Fusion Analysis
Control Surface Seals Investigated for Re-Entry Vehicles
Thermal Behavior of High-Speed Helical Gear Trains Investigated
High-Speed, High-Temperature Finger Seal Test Evaluated
Oil-Free Turbomachinery Research Enhanced by Thrust Bearing Test Capability
Alloy Interface Interdiffusion Modeled
Industry Needs Fulfilled by Patented NASA PS300 Solid Lubricant Technology
Transition of PS300 Solid Lubricant Coating Technology to Field Aided by Demonstration on Key Substrate Alloys
White Light Used to Enable Enhanced Surface Topography, Geometry, and Wear Characterization of Oil-Free Bearings
In Situ, On-Demand Lubrication System Developed for Space Mechanisms
Radial Clearance Found To Play a Key Role in the Performance of Compliant Foil Air Bearings
Commercialization of NASA PS304 Solid Lubricant Coating Enhanced by Fundamental Powder Flow Research
NASA PS304 Lubricant Tested in World’s First Commercial Oil-Free Gas Turbine


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Last updated: June 25, 2003


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