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Evaluation And Ranking Of Candidate Ceramic Wafer Engine Seal Materials

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Evaluation And Ranking Of Candidate Ceramic Wafer Engine Seal Materials

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-02

Evaluation And Ranking Of Candidate Ceramic Wafer Engine Seal Materials written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-02 with categories.

Modern engineered ceramics offer high temperature capabilities not found in even the best superalloy metals. The high temperature properties of several selected ceramics including aluminum oxide, silicon carbide, and silicon nitride are reviewed as they apply to hypersonic engine seal design. A ranking procedure is employed to objectively differentiate among four different monolithic ceramic materials considered, including: a cold-pressed and sintered aluminum oxide; a sintered alpha-phase silicon carbide; a hot-isostatically pressed silicon nitride; and a cold-pressed and sintered silicon nitride. This procedure is used to narrow the wide range of potential ceramics considered to an acceptable number for future detailed and costly analyses and tests. The materials are numerically scored according to their high temperature flexural strength; high temperature thermal conductivity; resistance to crack growth; resistance to high heating rates; fracture toughness; Weibull modulus; and finally according to their resistance to leakage flow, where materials having coefficients of thermal expansion closely matching the engine panel material resist leakage flow best. The cold-pressed and sintered material (Kyocera SN-251) ranked the highest in the overall ranking especially when implemented in engine panels made of low expansion rate materials being considered for the engine, including Incoloy and titanium alloys. Steinetz, Bruce M. Glenn Research Center RTOP 505-63-5B...

Evaluation And Ranking Of Candidate Ceramic Wafer Engine Seal Materials

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Author :
language : en
Publisher:
Release Date : 1991

Evaluation And Ranking Of Candidate Ceramic Wafer Engine Seal Materials written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1991

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Aeronautics categories.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Monthly Catalogue United States Public Documents

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Author :
language : en
Publisher:
Release Date : 1995

Monthly Catalogue United States Public Documents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Government publications categories.

Monthly Catalog Of United States Government Publications

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Author :
language : en
Publisher:
Release Date : 1995

Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Government publications categories.

Rotating Machinery 1992

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Author : Wen-Jei Yang
language : en
Publisher: Begell House Publishers
Release Date : 1993

Rotating Machinery 1992 written by Wen-Jei Yang and has been published by Begell House Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Technology & Engineering categories.

Modern rotating machines operate under more severe environments than in the past, and are required to produce increased output and to perform demanding tasks hitherto unforeseen. Better understanding, sophisticated testing and analysis, and accurate modeling of transport phenomena and dynamics are of paramount importance in predicting performance and improving the design of such machines. This two-volume set addresses these concerns and related design aspects of rotating machinery.

40th Aiaa Asme Sae Asee Joint Propulsion Conference Exhibit July 11 14 2004 Fort Lauderdale Fl 04 3850 04 3899

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Author :
language : en
Publisher:
Release Date : 2004

40th Aiaa Asme Sae Asee Joint Propulsion Conference Exhibit July 11 14 2004 Fort Lauderdale Fl 04 3850 04 3899 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Airplanes categories.