The Effect of a Coating on the Thermo-Oxidative Stability of Celion 6000 Graphite Fiber/PMR 15 Polyimide Composites PDF Download
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Author: FI. Hurwitz Publisher: ISBN: Category : Aluminum foil Languages : en Pages : 6
Book Description
The thermo-oxidative stability in air at 316°C of unidirectional uncoated and aluminum coated Celion 6000 graphite fiber/PMR 15 polyimide composites has been determined for exposure times up to nominally 2000 h. Comparison of the weight loss data and microstructural integrity reveals that a thin aluminum-foil coating can provide significant protection from oxidation. A quantitative description of the average depth of the reaction zone and the maximum length of cracks produced during oxidation as a function of time in uncoated Celion 6000/PMR 15 are given.
Author: FI. Hurwitz Publisher: ISBN: Category : Aluminum foil Languages : en Pages : 6
Book Description
The thermo-oxidative stability in air at 316°C of unidirectional uncoated and aluminum coated Celion 6000 graphite fiber/PMR 15 polyimide composites has been determined for exposure times up to nominally 2000 h. Comparison of the weight loss data and microstructural integrity reveals that a thin aluminum-foil coating can provide significant protection from oxidation. A quantitative description of the average depth of the reaction zone and the maximum length of cracks produced during oxidation as a function of time in uncoated Celion 6000/PMR 15 are given.
Author: Rod Martin Publisher: Elsevier ISBN: 1845694937 Category : Technology & Engineering Languages : en Pages : 543
Book Description
Ageing of composites is a highly topical subject given the increasing use of composites in structural applications in many industries. Ageing of composites addresses many of the uncertainties about the long-term performance of composites and how they age under conditions encountered in service.The first part of the book reviews processes and modelling of composite ageing including physical and chemical ageing of polymeric composites, ageing of glass-ceramic matrix composites, chemical ageing mechanisms, stress corrosion cracking, thermo-oxidative ageing, spectroscopy of ageing composites, modelling physical and accelerated ageing and ageing of silicon carbide composites. Part two examines ageing of composites in transport applications including aircraft, vehicles and ships. Part three reviews ageing of composites in non-transport applications such as implants in medical devices, oil and gas refining, construction, chemical processing and underwater applications.With its distinguished editor and international team of contributors, Ageing of composites is a valuable reference guide for composite manufacturers and developers. It also serves as a source of information for material scientists, designers and engineers in industries that use composites, including transport, chemical processing and medical engineering. Addresses many of the uncertainties about the long-term performance of composites and how they age under conditions encountered in service Reviews processes and modelling of composite ageing including chemical ageing mechanisms and stress corrosion cracking Discusses ageing of composites in both transport and non-transport applications ranging from aircraft to implants in medical devices
Author: Xiao-Su Yi Publisher: Springer ISBN: 981105696X Category : Technology & Engineering Languages : en Pages : 786
Book Description
This book is the first of two volumes providing comprehensive coverage of the fundamental knowledge and technology of composite materials. It covers a variety of design, fabrication and characterization methods as applied to composite materials, particularly focusing on the fiber-reinforcement mechanism and related examples. It is ideal for graduate students, researchers, and professionals in the fields of Materials Science and Engineering, and Mechanical Engineering.
Author: A.J. Kirby Publisher: iSmithers Rapra Publishing ISBN: 9780080419664 Category : Technology & Engineering Languages : en Pages : 166
Book Description
Polyimides have been available commercially for over 25 years, but are still frequently thought of as new materials, due largely to their performance and high technology end uses, which ensure that levels of research and development remain high. This detailed review describes the synthesis, properties, processing and applications of condensation, addition and hybrid polyimides. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database provides useful references for further reading.
Author: JB. Nelson Publisher: ISBN: Category : Composite materials Languages : en Pages : 16
Book Description
Celion® 6000/PMR-15, Celion 6000/LARC-160, and Celion 6000/RK-99 graphite/polyimides were aged in circulating air ovens at temperatures of 202, 232, 260, and 288°C for various times up to 15 000 h. Three unidirectional specimens were studied: short-beam-shear (SBS), flexure, and 153-mm square panels. The interior region of the square panels exhibited little or no property degradation. Based on the individually aged SBS specimen results, the relative thermal-oxidative stability from highest to lowest is as follows: PMR-15, LARC-160, RK-99. Celion 6000/PMR-15 and Celion 6000/LARC-160 laminates retained at least 80% of their initial flexural strengths for the duration of aging at each temperature. Celion 6000/RK-99 laminates exhibited a 20 to 50% loss of flexural strength at all aging temperatures. All three graphite/polyimide (Gr/PI) laminate materials degraded preferentially at the specimen edge perpendicular to the fibers.
Author: FI. Hurwitz
Author: FI. Hurwitz
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Author: Rod Martin
Author: Xiao-Su Yi
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Author: A.J. Kirby
Author: JB. Nelson
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