Download or read book Effect of Sample Test Volume and Geometry on the Tensile Mechanical Behavior of SiC SiC Continuous Fiber Ceramic Composites Final Report written by and published by . This book was released on 1998 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of a silicon carbide-type fiber from an organometallic precursor has led to a major resurgence of interest in fiber-reinforced ceramic matrix composites. By combining this high strength fiber with a variety of ceramic matrices it has been possible to achieve tough composites offering significant potential advantages over monolithic ceramics and carbon-carbon for high temperature applications. A continuous-fiber ceramic matrix composite (CFCC) typical of materials proposed for such industrial applications as power generation, heat recovery and chemical production as well as biomedical and environmental applications was tested in uniaxial tension using a universal test machine. Test parameters investigated included: test mode (load versus displacement), test rate (0.003 mm/s, 0.03 mm/s, 50 N/s and 500 N/s), specimen geometry (straight-sided versus reduced-gauge section) and type of specimen volume (long/thin versus short/fat). Typical properties include an average elastic modulus 130 ± 10 Gpa, an average proportional limit stress of 45 ± 20 Mpa, an average ultimate tensile strength of 180 ± 20 MPa and an average modulus of toughness of 8.4 ± 2 (x105)J/m3.
Download or read book Effect of Sample Test Volume and Geometry on the Tensile Mechanical Behavior of SiC written by and published by . This book was released on 1998 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of a silicon carbide-type fiber from an organometallic precursor has led to a major resurgence of interest in fiber-reinforced ceramic matrix composites. By combining this high strength fiber with a variety of ceramic matrices it has been possible to achieve tough composites offering significant potential advantages over monolithic ceramics and carbon-carbon for high temperature applications. A continuous-fiber ceramic matrix composite (CFCC) typical of materials proposed for such industrial applications as power generation, heat recovery and chemical production as well as biomedical and environmental applications was tested in uniaxial tension using a universal test machine. Test parameters investigated included: test mode (load versus displacement), test rate (0.003 mm/s, 0.03 mm/s, 50 N/s and 500 N/s), specimen geometry (straight-sided versus reduced-gauge section) and type of specimen volume (long/thin versus short/fat). Typical properties include an average elastic modulus 130 " 10 Gpa, an average proportional limit stress of 45 " 20 Mpa, an average ultimate tensile strength of 180 " 20 MPa and an average modulus of toughness of 8.4 " 2 (x105)J/m3.
Download or read book Thermal and Mechanical Test Methods and Behavior of Continuous fiber Ceramic Composites written by Michael G. Jenkins and published by ASTM International. This book was released on 1997 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Thermal and Environmental Testing and Performance of Ceramic Composites and Components written by Stephen T. Gonczy and published by ASTM International. This book was released on 2000 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Test Mode Test Rate Specimen Geometry and Bending on Tensile Mechanical Behavior of a Continuous Fiber Ceramic Composite written by MG. Jenkins and published by . This book was released on 1997 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: ASTM Test Method for Monotonic Tensile Strength Testing of Continuous Fiber-Reinforced Advanced Ceramics with Solid Rectangular Cross-Section Specimens at Ambient Temperatures (C 1275) was used to investigate the effects of test mode (load versus displacement), test rate (fast versus slow), specimen geometry (straight-sided versus reduced-gage section), specimen volume (long/thin versus short/fat), and bending in tension for a twelve-ply, two-dimensional, plain weave SiC fiber reinforced / SiC matrix continuous fibre ceramic composite. Although it appeared that "graceful failure" is sometimes accentuated by displacement control at slow rates, a two-way analysis of variance (ANOVA) with replication at the 95% significance level of all the test results showed that there was no significance of test rate, test mode or specimen geometry for proportional limit stress. Similarly, for ultimate tensile strength there was no significance of test rate or test mode although there was a significance of specimen geometry. Finally, for this two dimensional, plain weave fiber architecture there was no significance of test rate, test mode, or specimen geometry (including straight-sided specimens) on fracture location. Proportional limit stress decreased with increasing bending while ultimate tensile strength appeared independent of bending.
Download or read book Mechanical Properties and Performance of Engineering Ceramics and Composites VII Volume 33 Issue 2 written by Dileep Singh and published by John Wiley & Sons. This book was released on 2012-11-27 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of 33 papers deals with mechanical behaviors associated with systems ranging from diamond reinforced silicon carbide to rare earth pyrosilicates. Presented at The Mechanical Behavior and Performance of Ceramics & Composites Symposium in January 2012 during the 36th International Conference on Advanced Ceramics and Composites (ICACC), it offers researchers from around the world the opportunity to explore new and emerging issues in all aspects of the field.
Download or read book Mechanical Properties and Performance of Engineering Ceramics and Composites VI Volume 32 Issue 2 written by Dileep Singh and published by John Wiley & Sons. This book was released on 2011-10-11 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of papers from The American Ceramic Society's 35th International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 23-28, 2011. This issue includes papers presented in the Mechanical Behavior and Performance of Ceramics & Composites Symposium on topics such as processing-microstructure properties correlations; fracture mechanics, modeling and testing; tribological properties; applications; and processing.
Download or read book Time Dependent Mechanical Behavior of Ceramic Matrix Composites at Elevated Temperatures written by Longbiao Li and published by Springer Nature. This book was released on 2020-04-18 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates the time-dependent behavior of fiber-reinforced ceramic-matrix composites (CMCs) at elevated temperatures. The author combines the time-dependent damage mechanisms of interface and fiber oxidation and fracture with the micromechanical approach to establish the relationships between the first matrix cracking stress, matrix multiple cracking evolution, tensile strength, tensile stress-strain curves and tensile fatigue of fiber-reinforced CMCs and time. Then, using damage models of energy balance, the fracture mechanics approach, critical matrix strain energy criterion, Global Load Sharing criterion, and hysteresis loops he determines the first matrix cracking stress, interface debonded length, matrix cracking density, fibers failure probability, tensile strength, tensile stress-strain curves and fatigue hysteresis loops. Lastly, he predicts the time-dependent mechanical behavior of different fiber-reinforced CMCs, i.e., C/SiC and SiC/SiC, using the developed approaches, in order to reduce the failure risk during the operation of aero engines. The book is intended for undergraduate and graduate students who are interested in the mechanical behavior of CMCs, researchers investigating the damage evolution of CMCs at elevated temperatures, and designers responsible for hot-section CMC components in aero engines.
Download or read book Thermal Effects on the Mechanical Properties of SiC Fiber Reinforced Reaction Bonded Silicon Nitride Matrix SiC RBSN Composites written by R. T. Bhatt and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The elevated temperature four-point flexural strength and the room temperature tensile and flexural strength properties after thermal shock were measured for ceramic composites consisting of 30 vol % uniaxially aligned 142 microns diameter SiC fibers in a reaction bonded Si3N4 matrix. The elevated temperature strengths were measured after 15 min of exposure in air at temperatures to 1400 C. The thermal shock treatment was accomplished by heating the composite in air for 15 min at temperatures to 1200 C and then quenching in water at 25 C. The results indicate no significant loss in strength properties either at temperature or after thermal shock when compared with the strength data for composites in the as-fabricated condition. (jes).
Download or read book High Temperature Mechanical Behavior of Ceramic Matrix Composites written by Longbiao Li and published by John Wiley & Sons. This book was released on 2021-06-08 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Temperature Mechanical Behavior of Ceramic-Matrix Composites Covers the latest research on the high-temperature mechanical behavior of ceramic-matrix composites Due to their high temperature resistance, strength and rigidity, relatively light weight, and corrosion resistance, ceramic-matrix composites (CMCs) are widely used across the aerospace and energy industries. As these advanced composites of ceramics and various fibers become increasingly important in the development of new materials, understanding the high-temperature mechanical behavior and failure mechanisms of CMCs is essential to ensure the reliability and safety of practical applications. High Temperature Mechanical Behavior of Ceramic-Matrix Composites examines the behavior of CMCs at elevated temperature—outlining the latest developments in the field and presenting the results of recent research on different CMC characteristics, material properties, damage states, and temperatures. This up-to-date resource investigates the high-temperature behavior of CMCs in relation to first matrix cracking, matrix multiple cracking, tensile damage and fracture, fatigue hysteresis loops, stress-rupture, vibration damping, and more. This authoritative volume: Details the relationships between various high-temperature conditions and experiment results Features an introduction to the tensile, vibration, fatigue, and stress-rupture behavior of CMCs at elevated temperatures Investigates temperature- and time-dependent cracking stress, deformation, damage, and fracture of fiber-reinforced CMCs Includes full references and internet links to source material Written by a leading international researcher in the field, High Temperature Mechanical Behavior of Ceramic-Matrix Composites is an invaluable resource for materials scientists, surface chemists, organic chemists, aerospace engineers, and other professionals working with CMCs.
Download or read book Effects of Test Parameters on Tensile Mechanical Behavior of a Continuous Fibre Ceramic Composite CFCC written by John P. Piccola and published by . This book was released on 1994 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Behavior of Fiber Reinforced SiC RBSN Ceramic Matrix Composites Theory and Experiment written by and published by . This book was released on 1991 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mechanical behavior of continuous fiber reinforced SiC/RBSN composites with various fiber contents is evaluated. Both catastrophic and noncatastrophic failure is observed in specimens tested for tensile strength. Damage and failure mechanisms are identified via in-situ monitoring using nondestructive evaluation techniques throughout the loading history. Effects of fiber/matrix interfaces debonding (splitting) parallel to the fibers are discussed. Statistical failure behavior of fibers is also observed, especially when interfaces are weak. Microstructure models that incorporate residual stresses to calculate the critical matrix cracking strength, ultimate strength and work of pull-out are reviewed and used to predict composite response. For selected test problems, experimental measurements are compared to analytical predictions.
Download or read book Mechanical Properties and Performance of Engineering Ceramics and Composites VI Volume 32 Issue 2 written by Dileep Singh and published by John Wiley & Sons. This book was released on 2011-11-11 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of papers from The American Ceramic Society's 35th International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 23-28, 2011. This issue includes papers presented in the Mechanical Behavior and Performance of Ceramics & Composites Symposium on topics such as processing-microstructure properties correlations; fracture mechanics, modeling and testing; tribological properties; applications; and processing.
Download or read book Mechanical Properties and Performance of Engineering Ceramics and Composites IX Volume 35 Issue 2 written by Dileep Singh and published by John Wiley & Sons. This book was released on 2014-11-10 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ceramic Engineering and Science Proceeding has been published by The American Ceramic Society since 1980. This series contains a collection of papers dealing with issues in both traditional ceramics (i.e., glass, whitewares, refractories, and porcelain enamel) and advanced ceramics. Topics covered in the area of advanced ceramic include bioceramics, nanomaterials, composites, solid oxide fuel cells, mechanical properties and structural design, advanced ceramic coatings, ceramic armor, porous ceramics, and more.
Download or read book Mechanical Properties and Performance of Engineering Ceramics and Composites III Volume 28 Issue 2 written by Edgar Lara-Curzio and published by John Wiley & Sons. This book was released on 2007-11-12 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers from The American Ceramic Society's 31st International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 21-26, 2007. Content includes fundamental links among processing, microstructure, properties and performance of ceramics and composites, and how these change as a function of time, temperature and environment. Reviews progress on ternary compounds, ultra-high temperature ceramics, innovative processing techniques to achieve multifunctional properties and materials for power generation and nuclear energy applications.
Download or read book Effects of Fiber Content on Mechanical Properties of CVD SiC Fiber Reinforced Strontium Aluminosilicate Glass Ceramic Composites written by Narottam P. Bansal and published by . This book was released on 1996 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Properties and Performance of Engineering Ceramics and Composites IV written by Jonathan Salem and published by John Wiley & Sons. This book was released on 2009-02-11 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a one-stop resource with current research on advanced ceramics. It is a collection of papers from The American Ceramic Society s 32nd International Conference on Advanced Ceramics and Composites, January 27-February 1, 2008. Topics include Processing-Microstructure-Mechanical Properties Correlations; Mechanical Performance of Ternary Compounds; Mechanical Performance of Ultra-High Temperature Ceramics; and more. Articles are logically organized to provide insight into various aspects of ceramic materials and advanced ceramics. This is a valuable, up-to-date resource for researchers working in ceramics engineering.
