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Research & Technology 1995 Articles

Aerospace Technology

Materials
Advanced High Temperature Engine Materials Technology Progresses
Stereo Imaging Velocimetry
Source of Scatter in the Creep Lives of NiAl(Hf) Single Crystals Revealed
Creep Testing of High-Temperature Cu-8 Cr-4 Nb Alloy Completed
Ceramic Composites Used in High-Speed Turbines for Rocket Engines
Affordable Fiber-Reinforced Ceramic Composites Win 1995 R&D 100 Award
Thermomechanical Property Data Base Developed for Ceramic Fibers
Silicon Carbide Epitaxial Films Studied by Atomic Force Microscopy
Self-Lubricating, Wear-Resistant Diamond Films Developed for Use in Vacuum Environment
Lubricous Deposit Formed In Situ Between Wearing Surfaces at High Temperatures
DMBZ Polyimides Provide an Alternative to PMR-15 for High-Temperature Applications
Low-Cost Resin Transfer Molding Process Developed for High-Temperature Polyimide Matrix Composites
Nuclear Magnetic Resonance Used to Quantify the Effect of Pyrolysis Conditions on the Oxidative Stability of Silicon Oxycarbide Ceramics
Thermochemical Degradation Mechanisms for Reinforced Carbon/Carbon Panels on the Space Shuttle

Structures
Cascade Optimization Strategy Maximizes Thrust for High-Speed Civil Transport Propulsion System Concept
Impact Properties of Metal Fan Containment Materials Being Evaluated for the High- Speed Civil Transport (HSCT)
Active Piezoelectric Structures for Tip Clearance Management Assessed
Microalloying Improves the Low-Cycle Fatigue Behavior of Powder-Extruded NiAl
Effects of Control Mode and R-Ratio on the Fatigue Behavior of a Metal Matrix Composite
Micromechanics Analysis Code (MAC) Developed
Fully Associative, Nonisothermal, Potential-Based Unified Viscoplastic Model for Titanium-Based Matrices
Thermal and Structural Analysis Conducted on Hollow-Core Turbine Blade of the Space Shuttle Main Engine
Thermomechanical Multiaxial Fatigue Testing Capability Developed
Fatigue Behavior and Deformation Mechanisms in Inconel 718 Superalloy Investigated
High-Temperature Extensometry and PdCr Temperature-Compensated Wire Resistance Strain Gages Compared
Temperature-Dependent Effects on the Mechanical Behavior and Deformation Substructure of Haynes 188 Under Low-Cycle Fatigue
New Method Developed for Aeroelastic Stability Analysis
High-Temperature Magnetic Bearings for Gas Turbine Engines
Lewis-Developed Seals Serve General Electric Technology Needs
Lewis' Ultrasonic Imaging Technology Helps American Manufacturer of Nondestructive Evaluation Equipment Become More Competitive in the Global Market
Integrated Design Software Predicts the Creep Life of Monolithic Ceramic Components
Methodology Developed for Modeling the Fatigue Crack Growth Behavior of Single- Crystal, Nickel-Base Superalloys

Space Propulsion Technology
Three Phases of Low-Cost Rocket Engine Demonstration Program Completed
High-Aspect-Ratio Cooling Channel Concept Tested in Lewis' Rocket Engine Test Facility
Fluid Film Bearing Code Development
Cooperative Testing of Rocket Injectors That Use Gaseous Oxygen and Hydrogen
Lessons Learned With Metallized Gelled Propellants
1025:1 Area Ratio Nozzle Evaluated at High Combustion Chamber Pressures
Diagnostics Adapted for Heat-Treating Furnace Environment
Rhenium Rocket Manufacturing Technology
NSTAR Ion Propulsion System Power Electronics
Pulsed Plasma Thruster Technology
Thermodynamic Vent System Applied as Propellant Delivery System for Air Force

Power Technology
SCARLET Solar Array Delivered for METEOR Mission
Valuable Data Provided by PASP Plus Flight Experiment After 1 Year in Orbit
Separator Materials Used in Secondary Alkaline Batteries Characterized and Evaluated
Regenerative Fuel Cell System Testbed Program for Government and Commercial Applications
Power-by-Wire Development and Demonstration for Subsonic Civil Transport
Advanced Power Regulator Developed for Spacecraft
SAMPIE Measurements of the Space Station Plasma Current Analyzed
Molecular Dynamics Calculations
Mars Pathfinder: The Wheel Abrasion Experiment
EWB: The Environment WorkBench Version 4.0
Protective, Abrasion-Resistant Coatings With Tailorable Properties
Technique to Predict Ultraviolet Radiation Embrittlement of Polymers in Space
Transparent, Conductive Coatings Developed for Arc-Proof Solar Arrays
Radiation Protection of New Lightweight Electromagnetic Interference Shielding Materials Determined
Silicone Contamination Camera for Developed for Shuttle Payloads
Iron-Containing Carbon Materials Fabricated
Passive Optical Sample Assembly (POSA-2) Space Flight Experiment
Aperture Shield Materials Characterized and Selected for Solar Dynamic Space Power System
Atomic-Oxygen-Durable Microsheet Glass Reflector
Environmental Influence of Gravity and Pressure on Arc Tracking of Insulated Wires Investigated
Experimental Results From the Thermal Energy Storage-1 (TES-1) Flight Experiment
2-kW Solar Dynamic Space Power System Tested in Lewis' Thermal Vacuum Facility

Space Electronics
Digital Audio Radio Broadcast Systems Laboratory Testing Nearly Complete
Role of Communications Satellites in the National and Global Information Infrastructure
Lewis Helps Examine Feasibility of Fixed Satellite Service and Local Multipoint Distribution Service Sharing the Same Frequency Band
Potential Market for Satellite Technology in Meeting Telecommunication Needs of Developing Nations
Highly Efficient Amplifier for Ka-Band Communications
Chemical Vapor-Deposited (CVD) Diamond Films for Electronic Applications
Monolithic Microwave Integrated Circuit (MMIC) Phased Array Demonstrated With ACTS
B-ISBN Onboard Processing Fast Packet Switch Developed
Low-Complexity, Digital Encoder/Modulator Developed for High-Data-Rate Satellite B- ISDN Applications
Multichannel Error Correction Code Decoder
INTEX Ka-Band Experiment Ground Terminal
Telemammography Using Satellite Communications


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Last updated April 26, 1996


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