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The purpose of this Aerospace Recommended Practice (ARP) is to provide guidelines for the basic requirements to be considered regarding environmental degradation effects when qualifying composite materials in the design to fulfill the (E)TSO-C90 Minimum Performance Standard. Material qualification is the verifying of a materials attributes and characterizations, which are typically determined through testing.

This SAE Aerospace Recommended Practice (ARP) provides methods and guidelines for isolating dissimilar repair patch materials from carbon fiber reinforced plastic (herein also referred to as carbon composite) structure during a repair operation.

Conventional paint strippers cannot be used on composite surfaces without damage to the substrate. Current practice is the use of hand sanding for paint removal from these surfaces. ...In this paper, it is our intent to provide data supporting PMB as a viable process for paint removal from composite surfaces. The PMB process eliminates health hazards associated with chemical stripping and reduces hazardous waste.

Development of a light structure with composite materials is one of the key technologies to realize an economic HSCT(High Speed Civil Transport). ...FHI(Fuji Heavy Industries) has continued to investigate heat resistance polymer (thermoplastic polyimide) matrix composite materials and their application to aircraft structures since 1987 jointly with MTC (Mitsui Toatsu Chemicals), Inc[1, 2 and 3].

Tungsten Carbide round tools are regularly being coated with continuous, well adherent, diamond films that improve machining performance and increase tool lifetimes in composite materials by 15 to 30 times over uncoated tools. This paper reveals the process methods involved in CVD diamond film growth on tungsten carbide tool surfaces and the unique properties of diamond thin films. ...The surface of the diamond films can be controlled to create a faceted cutting edge that is ideally suited to machining abrasive composite materials and produces superior surface finishes. Application materials for diamond coated tools include carbon fiber reinforced composites, fiber reinforced plastics, green ceramics, advanced fiberglass structures and aluminum metal matrix composites. ...Application materials for diamond coated tools include carbon fiber reinforced composites, fiber reinforced plastics, green ceramics, advanced fiberglass structures and aluminum metal matrix composites.

To develop high performance Carbon-Carbon composite, preliminary practices of SiC infiltration into monolithic porous carbon and Carbon-Carbon composite preforms were performed using Pulse Chemical Vapor Infiltration process, in which the concentration of CH3SiCl3 was fixed at 4.5mol%. ...To develop high performance Carbon-Carbon composite, preliminary practices of SiC infiltration into monolithic porous carbon and Carbon-Carbon composite preforms were performed using Pulse Chemical Vapor Infiltration process, in which the concentration of CH3SiCl3 was fixed at 4.5mol%. ...In case of the porous Carbon-Carbon composite preforms, SiC matrix infiltration was also observed at three temperatures of 1173K, 1273K and 1373K. 65vol% of initial porosity was infiltrated with β -SiC in the condition of 1373K and 1.5sec..

In this study, a new hydrophilic, composite membrane has been developed for passage of the coolant fluid and retention of gas bubbles. ...The resulting composite membranes have shown repeatable decrease in nitrogen permeability, which is indicative of a decrease in membrane pore size.

The composite sandwich structure has been in use in space applications particularly for the satellite body because of its high strength to weight ratio coupled with excellent compressibility strength. ...In the light of the above, this paper focuses on the development of novel optical black coating on Carbon fiber reinforced composite sandwich structures with aluminum honeycomb core. A thin layer of Multi-Walled Carbon Nanotubes black coating was developed on the surfaces of Carbon fiber reinforced composite laminate of the sandwich structure using the Chemical Vapour Deposition technique, to provide a low reflective surface. ...A thin layer of Multi-Walled Carbon Nanotubes black coating was developed on the surfaces of Carbon fiber reinforced composite laminate of the sandwich structure using the Chemical Vapour Deposition technique, to provide a low reflective surface.

This SAE Aerospace Recommended Practice (ARP) provides methods and guidelines for isolating dissimilar repair patch materials from carbon composite structure during a repair operation.

The following terminology has been generated by the ATA/IATA/SAE Commercial Aircraft Composite Repair Committee (CACRC) and provides terminology for design, fabrication, and repair of composite and bonded metal structures. ...The following terminology has been generated by the ATA/IATA/SAE Commercial Aircraft Composite Repair Committee (CACRC) and provides terminology for design, fabrication, and repair of composite and bonded metal structures.

This document describes an inspection procedure for detecting, by use of a radiographic opaque tracer and fluoroscopy or radiography methods, flaws which have been produced as the result of cutting, machining, or drilling operations in composite or laminate structures.

Research on metal-matrix composites for turbine compressors has demonstrated that four areas of compatibility are very important in composite design, and all must be considered in detail when specifying metal-matrix composites for structural applications. ...Research on metal-matrix composites for turbine compressors has demonstrated that four areas of compatibility are very important in composite design, and all must be considered in detail when specifying metal-matrix composites for structural applications. ...The designer must have detailed knowledge of every step in the composite manufacturing process to predict structural performance. Control of the manufacturing process to achieve maximum reinforcement from the filaments is considered the most important single factor.

The plate and sheet covered by this specification shall be an integral composite product consisting of a heat-treatable aluminum alloy (7178) core with thin layers of an aluminum alloy (7072) anodic to the core and of approximately equal thickness, bonded to both surfaces

The following terminology has been generated by the ATA/IATA/SAE Commercial Aircraft Composite Repair Committee (CACRC) and provides terminology for design, fabrication, and repair of composite and bonded metal structures. ...The following terminology has been generated by the ATA/IATA/SAE Commercial Aircraft Composite Repair Committee (CACRC) and provides terminology for design, fabrication, and repair of composite and bonded metal structures.

The following terminology has been generated by the ATA/IATA/SAE Commercial Aircraft Composite Repair Committee (CACRC) and provides terminology for design, fabrication, and repair of composite and bonded metal structures. ...The following terminology has been generated by the ATA/IATA/SAE Commercial Aircraft Composite Repair Committee (CACRC) and provides terminology for design, fabrication, and repair of composite and bonded metal structures.

The following terminology has been generated by the ATA/IATA/SAE Commercial Aircraft Composite Repair Committee (CACRC) and provides terminology for design, fabrication, and repair of composite and bonded metal structures. ...The following terminology has been generated by the ATA/IATA/SAE Commercial Aircraft Composite Repair Committee (CACRC) and provides terminology for design, fabrication, and repair of composite and bonded metal structures.

An array-based sensing system based on 32 polymer/carbon composite conductometric sensors is under development at JPL. Until the present phase of development, the analyte set has focused on organic compounds (common solvents) and a few selected inorganic compounds, notably ammonia and hydrazine.

This principle has opened up the possibility for chemical stripping of a paint scheme using less aggressive, more environmentally friendly chemical strippers and the possibility of being able to chemically strip paint from composite parts. The theory and historical development of this concept is explained, including comparative stripping results with different strippers and different paint systems leading to further future developments.

The data presented will be a composite of information gained in the Research Laboratory of Coors Porcelain Company and from literature sources on cryogenic properties of alumina and beryllia material.

Fiber-reinforced Aerogel composite insulations provide superior thermal insulation protection in both the low-earth orbit (LEO) and near-earth neighborhood planetary environments. ...This paper reviews the properties of various Aerogel composite materials developed for NASA by Aspen Systems, Inc. Previous studies showed that the Aerogel materials retained acceptable thermal performance after some amount of mechanical cycling. ...Hence, a good knowledge of the durability of the aerogel composites is needed. This paper presents the extensive testing program needed to determine the life of these insulations for advanced space suit application.