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High Temperature Self Lubricating Coatings For Air Lubricated Foil Bearings For The Automotive Gas Turbine Engine
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Book Synopsis High Temperature Self-lubricating Coatings for Air Lubricated Foil Bearings for the Automotive Gas Turbine Engine by : Bharat Bhushan
Download or read book High Temperature Self-lubricating Coatings for Air Lubricated Foil Bearings for the Automotive Gas Turbine Engine written by Bharat Bhushan and published by . This book was released on 1980 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Temperature Self-lubricating Coatings for Air Lubricated Foil Bearings for the Automotive Gas Turbine Engine by : Bharat Bhushan
Download or read book High Temperature Self-lubricating Coatings for Air Lubricated Foil Bearings for the Automotive Gas Turbine Engine written by Bharat Bhushan and published by . This book was released on 1980 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrodynamic Air Lubricated Compliant Surface Bearing for an Automotive Gas Turbine Engine: Bhushan, B., Ruscitto, D., Gray, S. Materials and coatings by : Mechanical Technology Incorporated
Download or read book Hydrodynamic Air Lubricated Compliant Surface Bearing for an Automotive Gas Turbine Engine: Bhushan, B., Ruscitto, D., Gray, S. Materials and coatings written by Mechanical Technology Incorporated and published by . This book was released on 1978 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance and Durability of High Temperature Foil Air Bearings for Oil-Free Turbomachinery by : C. DellaCorte
Download or read book Performance and Durability of High Temperature Foil Air Bearings for Oil-Free Turbomachinery written by C. DellaCorte and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance and durability of advanced, high temperature foil air bearings are evaluated under a wide range (10-50 kPa) of loads at temperatures from 25 to 650 deg C. The bearings are made from uncoated nickel based superalloy foils. The foil surface experiences sliding contact with the shaft during initial start/stop operation. To reduce friction and wear, the solid lubricant coating, PS 304, is applied to the shaft by plasma spraying. PS304 is a NiCr based Cr2O3 coating with silver and barium fluoride/calcium fluoride solid lubricant additions. The results show that the bearings provide lives well in excess of 30,000 cycles under all of the conditions tested. Several bearings exhibited lives in excess of 100,000 cycles. Wear is a linear function of the bearing load. The excellent performance measured in this study suggests that these bearings and the PS 304 coating are well suited for advanced high temperature, oil-free turbomachinery applications.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tribology and Mechanics of Magnetic Storage Devices by : Bharat Bhushan
Download or read book Tribology and Mechanics of Magnetic Storage Devices written by Bharat Bhushan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1035 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic recording is presently a $50 billion industry. It spans audio, video, and digi tal applications in the form of tapes and disks. The industry is expected to grow by a factor of five or more in the next decade. This growth will be accompanied by dramatic improvements in the technology, and the potential exists for magnetic-recording den sities to improve by at least one order of magnitude! Magnetic-recording process is accomplished by relative motion between a mag netic head and a magnetic medium. Types of magnetic media for digital recording are: flexible media (tapes and floppy disks) and rigid disks. Physical contact between head and medium occurs during starts and stops and hydrodynamic air film develops at high speeds. Hying heights (mean separation between head and medium) are on the order of 0. 1 micrometer comparable to surface roughness of the mating members. Need for higher and higher recording densities requires that surfaces be as smooth as possible and flying heights be as low as possible. Smoother surfaces lead to increased static/ kinetic friction and wear. In the case of magnetic tapes, in order to have high bit capac ity for a given size of a spool, we like to use as thin a tape substrate as possible. Thinner tapes are prone to local or bulk viscoelastic deformation during storage. This may lead to variations in head-tape separations resulting in problems in data reliability.
Book Synopsis Principles and Applications of Tribology by : Bharat Bhushan
Download or read book Principles and Applications of Tribology written by Bharat Bhushan and published by John Wiley & Sons. This book was released on 2013-02-15 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully updated Second Edition provides the reader with the solid understanding of tribology which is essential to engineers involved in the design of, and ensuring the reliability of, machine parts and systems. It moves from basic theory to practice, examining tribology from the integrated viewpoint of mechanical engineering, mechanics, and materials science. It offers detailed coverage of the mechanisms of material wear, friction, and all of the major lubrication techniques - liquids, solids, and gases - and examines a wide range of both traditional and state-of-the-art applications. For this edition, the author has included updates on friction, wear and lubrication, as well as completely revised material including the latest breakthroughs in tribology at the nano- and micro- level and a revised introduction to nanotechnology. Also included is a new chapter on the emerging field of green tribology and biomimetics.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1986 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Testing of Metallic and Inorganic Coatings by : William B. Harding
Download or read book Testing of Metallic and Inorganic Coatings written by William B. Harding and published by ASTM International. This book was released on 1987 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coatings are tested to confirm compliance with specifications, to monitor the operation of a coating process, and to evaluate coatings for various services. The ability of a coating to perform as intended usually depends on several characteristics, and the testing of a coating usually involves several different tests. At first glance the nature of a characteristic that is being tested may seem clear and the results of a test may seem to be unambiguous, however, the nature of a characteristic my be more complex than realized and the ability of a test to measure the characteristic may be less than expected. The members of the ASTM Committee B-8 on Metallic and Inorganic Coatings felt it was desirable to organize a symposium on the testing of the metallic and inorganic coatings so as to bring these problems to the attention of practitioners. This publication is based on the symposium, which was presented in Chicago on April 14 and 15, 1986.
Book Synopsis Handbook of Tribology by : Bharat Bhushan
Download or read book Handbook of Tribology written by Bharat Bhushan and published by McGraw-Hill Companies. This book was released on 1991 with total page 1172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Advanced Solid Lubricant Coatings for Foil Air Bearings Operating at 25 and 500 C by : Christopher DellaCorte
Download or read book Evaluation of Advanced Solid Lubricant Coatings for Foil Air Bearings Operating at 25 and 500 C written by Christopher DellaCorte and published by . This book was released on 1998 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Lubrication Technology by :
Download or read book Journal of Lubrication Technology written by and published by . This book was released on 1981 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Evaluation of a Modified Chrome Oxide Based High Temperature Solid Lubricant Coating for Foil Gas Bearings by :
Download or read book The Evaluation of a Modified Chrome Oxide Based High Temperature Solid Lubricant Coating for Foil Gas Bearings written by and published by . This book was released on 1998 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721530519 Total Pages :34 pages Book Rating :4.5/5 (35 download)
Book Synopsis A Systems Approach to the Solid Lubrication of Foil Air Bearings for Oil-Free Turbomachinery by : National Aeronautics and Space Administration (NASA)
Download or read book A Systems Approach to the Solid Lubrication of Foil Air Bearings for Oil-Free Turbomachinery written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foil air bearings are self-acting hydrodynamic bearings which rely upon solid lubricants to reduce friction and minimize wear during sliding which occurs at start-up and shut-down when surface speeds are too low to allow the formation of a hydrodynamic air film. This solid lubrication is typically accomplished by coating the non-moving foil surface with a thin, soft polymeric film. The following paper introduces a systems approach in which the solid lubrication is provided by a combination of self lubricating shaft coatings coupled with various wear resistant and lubricating foil coatings. The use of multiple materials, each providing different functions is modeled after oil-lubricated hydrodynamic sleeve bearing technology which utilizes various coatings and surface treatments in conjunction with oil lubricants to achieve optimum performance. In this study, room temperature load capacity tests are performed on journal foil air bearings operating at 14,000 rpm. Different shaft and foil coating technologies such as plasma sprayed composites, ceramic, polymer and inorganic lubricant coatings are evaluated as foil bearing lubricants. The results indicate that bearing performance is improved through the individual use of the lubricants and treatments tested. Further, combining several solid lubricants together yielded synergistically better results than any material alone. DellaCorte, Christopher and Zaldana, Antonio R. and Radil, Kevin C. Glenn Research Center NASA/TM-2002-211482, NAS 1.15:211482, E-13250, ARL-TR-2867
Book Synopsis High Temperature Solid Lubricant Materials for Heavy Duty and Advanced Heat Engines by :
Download or read book High Temperature Solid Lubricant Materials for Heavy Duty and Advanced Heat Engines written by and published by . This book was released on 1994 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASME Technical Papers written by and published by . This book was released on 1980 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Systems Approach to the Solid Lubrication of Foil Air Bearings for Oil-Free Turbomachinery by :
Download or read book A Systems Approach to the Solid Lubrication of Foil Air Bearings for Oil-Free Turbomachinery written by and published by . This book was released on 2002 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
