Degradation Of Continuous Fiber Ceramic Matrix Composites Under Constant Load Conditions

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Degradation of Continuous Fiber Ceramic Matrix Composites Under Constant-Load Conditions

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Author :
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (317 download)

Book Synopsis Degradation of Continuous Fiber Ceramic Matrix Composites Under Constant-Load Conditions by :

Download or read book Degradation of Continuous Fiber Ceramic Matrix Composites Under Constant-Load Conditions written by and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten different ceramic matrix composite (CMC) materials were subjected to a constant load and temperature in an air environment. Tests conducted under these conditions are often referred to as stressed oxidation or creep rupture tests. The stressed oxidation tests were conducted at a temperature of 1454 deg C at stresses of 69 MPa, 172 MPa and 50% of each material's ultimate tensile strength. The ten materials included such CMCs as C/SiC, SiC/C, SiC/SiC, SiC/SiNC and C/C. The time to failure results of the stressed oxidation tests will be presented. Much of the discussion regarding material degradation under stressed oxidation conditions will focus on C/SiC composites. Thermogravimetric analysis of the oxidation of fully exposed carbon fiber (T300) and of C/SiC coupons will be presented as well as a model that predicts the oxidation patterns and kinetics of carbon fiber tows oxidizing in a nonreactive matrix.

Degradation of Continuous Fiber Ceramic Matrix Composites Under Constant Load Conditions

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Author : MC. Halbig
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (125 download)

Book Synopsis Degradation of Continuous Fiber Ceramic Matrix Composites Under Constant Load Conditions by : MC. Halbig

Download or read book Degradation of Continuous Fiber Ceramic Matrix Composites Under Constant Load Conditions written by MC. Halbig and published by . This book was released on 2000 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten different ceramic matrix composite (CMC) materials were subjected to a constant load and temperature in an air environment. Tests conducted under these conditions are often referred to as stressed oxidation or creep rupture tests. The stressed oxidation tests were conducted at a temperature of 1454°C at stresses of 69 MPa, 172 MPa and 50% of each material's ultimate tensile strength. The ten materials included such CMCs as C/SiC, SiC/C, SiC/SiC, SiC/SiNC and C/C. The time to failure results of the stressed oxidation tests will be presented. Much of the discussion regarding material degradation under stressed oxidation conditions will focus on C/SiC composites. Thermogravimetric analysis of the oxidation of fully exposed carbon fiber (T300) and of C/SiC coupons will be presented as well as a model that predicts the oxidation patterns and kinetics of carbon fiber tows oxidizing in a nonreactive matrix.

Mechanical, Thermal, and Environmental Testing and Performance of Ceramic Composites and Components

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Author :
Publisher :
ISBN 13 : 9781621987246
Total Pages : 331 pages
Book Rating : 4.9/5 (872 download)

Book Synopsis Mechanical, Thermal, and Environmental Testing and Performance of Ceramic Composites and Components by :

Download or read book Mechanical, Thermal, and Environmental Testing and Performance of Ceramic Composites and Components written by and published by . This book was released on 2000 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains 21 papers from a May 1999 symposium on continuous fiber- reinforced advanced ceramic composites, related tests methods, materials characterization, and design applications. Papers are divided into four major categories of room-temperature test results and methods, test results and methods related to design implications, environmental effects and characterization, and damage accumulation and material development. Specific topics include notch-sensitivity of a woven oxide/oxide ceramic matrix composite, effects of microstructural damage on the thermal diffusivity of continuous fiber- reinforced ceramic matrix composites, and degradation of continuous fiber ceramic matrix composites under constant load conditions. The editors are affiliated with the University of Washington; Oak Ridge National Laboratory; and Gateway Materials Technology. Annotation copyrighted by Book News, Inc., Portland, OR.

Durability of Ceramic-Matrix Composites

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Author : Li Longbiao
Publisher : Woodhead Publishing
ISBN 13 : 0081030223
Total Pages : 478 pages
Book Rating : 4.0/5 (81 download)

Book Synopsis Durability of Ceramic-Matrix Composites by : Li Longbiao

Download or read book Durability of Ceramic-Matrix Composites written by Li Longbiao and published by Woodhead Publishing. This book was released on 2020-02-07 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Durability of Ceramic-Matrix Composites presents the latest information on these high-temperature structural materials and their outstanding advantages over more conventional materials, including their high specific strength, high specific modulus, high temperature resistance and good thermal stability. The critical nature of the application of these advanced materials makes it necessary to have a complete understanding of their characterization. This book focuses explicitly on the durability of CMCs and will be extremely valuable for materials scientists and engineers who are dealing with the simulation of durability response and fatigue of ceramic matrix composites. Provides the latest theoretical and applied research in the field of ceramic matrix composites, particularly as it relates to usage in aerospace propulsion systems Presents extensive information on the micromechanics of damage evolution, lifetime prediction and durability in ceramic matrix composites Details parameter studies that are valuable for materials development and lifetime durability studies

Ceramic Matrix Composites

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Author : Longbiao Li
Publisher : Elsevier
ISBN 13 : 0323997074
Total Pages : 216 pages
Book Rating : 4.3/5 (239 download)

Book Synopsis Ceramic Matrix Composites by : Longbiao Li

Download or read book Ceramic Matrix Composites written by Longbiao Li and published by Elsevier. This book was released on 2023-06-30 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ceramic Matrix Composites: Lifetime and Strength Prediction Under Static and Stochastic Loading focuses on the strain response and lifetime prediction of fiber-reinforced ceramic-matrix composites under stress-rupture loading at intermediate temperatures. Typical damage mechanisms of matrix cracking, interface debonding and oxidation, and fiber’s oxidation and fracture are considered in the micromechanical analysis. Effects of composite’s constituent properties, peak stress, and testing temperature on the composite’s strain response and lifetime are also analyzed in detail. Finally, a comparison of constant and different stochastic stress spectrum on composite’s damage evolution and fracture is discussed. This book will be a practical guide for the material researcher and component designer needing to better understand the composite’s damage and fracture behavior under stress-rupture loading at intermediate temperatures. Contains detailed analysis of the stress-rupture behavior of fiber-reinforced ceramic-matrix composites Includes experimental data on stress-rupture behavior of different CMCs Presents micromechanical constituent models for characterizing damage and fracture behavior under stress-rupture loading Provides data on the physical properties of each constituent at various temperatures, along with the composite’s response

Micromechanics of Ceramic-Matrix Composites at Elevated Temperatures

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Author : Longbiao Li
Publisher : Springer Nature
ISBN 13 : 9819712947
Total Pages : 139 pages
Book Rating : 4.8/5 (197 download)

Book Synopsis Micromechanics of Ceramic-Matrix Composites at Elevated Temperatures by : Longbiao Li

Download or read book Micromechanics of Ceramic-Matrix Composites at Elevated Temperatures written by Longbiao Li and published by Springer Nature. This book was released on with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

High-Temperature Mechanical Hysteresis in Ceramic-Matrix Composites

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Author : Longbiao Li
Publisher : CRC Press
ISBN 13 : 1000629694
Total Pages : 200 pages
Book Rating : 4.0/5 (6 download)

Book Synopsis High-Temperature Mechanical Hysteresis in Ceramic-Matrix Composites by : Longbiao Li

Download or read book High-Temperature Mechanical Hysteresis in Ceramic-Matrix Composites written by Longbiao Li and published by CRC Press. This book was released on 2022-08-09 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on mechanical hysteresis behavior in different fiber-reinforced ceramic-matrix composites (CMCs), including 1D minicomposites, 1D unidirectional, 2D cross-ply, 2D plain-woven, 2.5D woven, and 3D needle-punched composites. Ceramic-matrix composites (CMCs) are considered to be the lightweight high-temperature materials for hot-section components in aeroengines with the most potential. To improve the reliability and safety of CMC components during operation, it is necessary to conduct damage and failure mechanism analysis, and to develop models to predict this damage as well as fracture over lifetime - mechanical hysteresis is a key damage behavior in fiber-reinforced CMCs. The appearance of hysteresis is due to a composite’s internal damage mechanisms and modes, such as, matrix cracking, interface debonding, and fiber failure. Micromechanical damage models and constitutive models are developed to predict mechanical hysteresis in different CMCs. Effects of a composite’s constituent properties, stress level, and the damage states of the mechanical hysteresis behavior of CMCs are also discussed. This book also covers damage mechanisms, damage models and micromechanical constitutive models for the mechanical hysteresis of CMCs. This book will be a great resource for students, scholars, material scientists and engineering designers who would like to understand and master the mechanical hysteresis behavior of fiber-reinforced CMCs.

High Temperature Mechanical Behavior of Ceramic-Matrix Composites

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Author : Longbiao Li
Publisher : John Wiley & Sons
ISBN 13 : 3527831789
Total Pages : 386 pages
Book Rating : 4.5/5 (278 download)

Book Synopsis High Temperature Mechanical Behavior of Ceramic-Matrix Composites by : Longbiao Li

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.

Mechanical, Thermal, and Environmental Testing and Performance of Ceramic Composites and Components

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Author : Stephen T. Gonczy
Publisher : ASTM International
ISBN 13 : 080312872X
Total Pages : 330 pages
Book Rating : 4.8/5 (31 download)

Book Synopsis Mechanical, Thermal, and Environmental Testing and Performance of Ceramic Composites and Components by : Stephen T. Gonczy

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:

Ceramic Fibers and Coatings

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Author : Committee on Advanced Fibers for High-Temperature Ceramic Composites
Publisher : National Academies Press
ISBN 13 : 0309569036
Total Pages : 112 pages
Book Rating : 4.3/5 (95 download)

Book Synopsis Ceramic Fibers and Coatings by : Committee on Advanced Fibers for High-Temperature Ceramic Composites

Download or read book Ceramic Fibers and Coatings written by Committee on Advanced Fibers for High-Temperature Ceramic Composites and published by National Academies Press. This book was released on 1998-05-05 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-temperature ceramic fibers are the key components of ceramic matrix composites (CMCs). Ceramic fiber properties (strength, temperature and creep resistance, for example)-along with the debonding characteristics of their coatings-determine the properties of CMCs. This report outlines the state of the art in high-temperature ceramic fibers and coatings, assesses fibers and coatings in terms of future needs, and recommends promising avenues of research. CMCs are also discussed in this report to provide a context for discussing high-temperature ceramic fibers and coatings.

Time-Dependent Mechanical Behavior of Ceramic-Matrix Composites at Elevated Temperatures

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Author : Longbiao Li
Publisher : Springer Nature
ISBN 13 : 9811532745
Total Pages : 373 pages
Book Rating : 4.8/5 (115 download)

Book Synopsis Time-Dependent Mechanical Behavior of Ceramic-Matrix Composites at Elevated Temperatures by : Longbiao Li

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.

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 21, Issue 3

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Author : Todd Jessen
Publisher : John Wiley & Sons
ISBN 13 : 0470295074
Total Pages : 777 pages
Book Rating : 4.4/5 (72 download)

Book Synopsis 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 21, Issue 3 by : Todd Jessen

Download or read book 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 21, Issue 3 written by Todd Jessen and published by John Wiley & Sons. This book was released on 2009-09-28 with total page 777 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. 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.

28th International Conference on Advanced Ceramics and Composites B

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Author : Edgar Lara-Curzio
Publisher : John Wiley & Sons
ISBN 13 : 0470291583
Total Pages : 653 pages
Book Rating : 4.4/5 (72 download)

Book Synopsis 28th International Conference on Advanced Ceramics and Composites B by : Edgar Lara-Curzio

Download or read book 28th International Conference on Advanced Ceramics and Composites B written by Edgar Lara-Curzio and published by John Wiley & Sons. This book was released on 2009-09-28 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of Papers Presented at the 28th International Conference and Exposition on Advanced Ceramics and Composites held in conjunction with the 8th International Symposium on Ceramics in Energy Storage and Power Conversion Systems.

Oxidation of Continuous Carbon Fibers Within a Silicon Carbide Matrix Under Stressed and Unstressed Conditions

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Author : Michael C. Halbig
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)

Book Synopsis Oxidation of Continuous Carbon Fibers Within a Silicon Carbide Matrix Under Stressed and Unstressed Conditions by : Michael C. Halbig

Download or read book Oxidation of Continuous Carbon Fibers Within a Silicon Carbide Matrix Under Stressed and Unstressed Conditions written by Michael C. Halbig and published by . This book was released on 2000 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon fiber reinforced silicon carbide matrix composites (C/SiC) are a ceramic matrix composite (CMC) material that offers benefits for use in a wide range of high temperature structural applications. However the susceptibility of the carbon fibers to degradation in oxidizing environments has hindered the material's use in certain applications requiring long lives under oxidizing conditions. The susceptibility of carbon fibers to oxidation will be discussed as well as the enhancement (improvement in oxidation resistance) of C/SiC materials. Thermogravimetric analysis of carbon fibers shows susceptibility to oxidation in two distinct kinetic regimes. However, in the thermogravimetric (wt. loss) analysis of unstressed, unenhanced, seal coated C/SiC coupons, the two regimes were not observed due to crack closure and matrix effects, which inhibited the oxidation process. Stressed oxidation (creep rupture) tests put the material under a stress, which is a more realistic condition for many applications. In stressed oxidation tests, the two oxidation kinetics regimes were observed. These tests can provide better insight into how the material will perform in applications involving stress. Stressed oxidation of enhanced materials containing oxidation inhibitors showed significantly improved lives at the specific test conditions considered, although there was susceptibility to oxidation at intermediate temperatures.

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 23, Issue 3

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Author : Hua-Tay Lin
Publisher : John Wiley & Sons
ISBN 13 : 0470295198
Total Pages : 872 pages
Book Rating : 4.4/5 (72 download)

Book Synopsis 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 23, Issue 3 by : Hua-Tay Lin

Download or read book 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 23, Issue 3 written by Hua-Tay Lin and published by John Wiley & Sons. This book was released on 2009-09-28 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. 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.

Damage and Fracture of Ceramic-Matrix Composites Under Stochastic Loading

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Author : Longbiao Li
Publisher : Springer Nature
ISBN 13 : 9811621411
Total Pages : 205 pages
Book Rating : 4.8/5 (116 download)

Book Synopsis Damage and Fracture of Ceramic-Matrix Composites Under Stochastic Loading by : Longbiao Li

Download or read book Damage and Fracture of Ceramic-Matrix Composites Under Stochastic Loading written by Longbiao Li and published by Springer Nature. This book was released on 2021-06-08 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the relationships between tensile damage and fracture, fatigue hysteresis loops, stress-rupture, fatigue life and fatigue limit stress, and stochastic loading stress. Ceramic-matrix composites (CMCs) possess low material density (i.e., only 1/4 - 1/3 of high-temperature alloy) and high-temperature resistance, which can reduce cooling air and improve structure efficiency. Understanding the failure mechanisms and internal damage evolution represents an important step to ensure reliability and safety of CMCs. This book investigates damage and fracture of fiber-reinforced ceramic-matrix composites (CMCs) subjected to stochastic loading, including: (1) tensile damage and fracture of fiber-reinforced CMCs subjected to stochastic loading; (2) fatigue hysteresis loops of fiber-reinforced CMCs subjected to stochastic loading; (3) stress rupture of fiber-reinforced CMCs with stochastic loading at intermediate temperature; (4) fatigue life prediction of fiber-reinforced CMCs subjected to stochastic overloading stress at elevated temperature; and (5) fatigue limit stress prediction of fiber-reinforced CMCs with stochastic loading. This book helps the material scientists and engineering designers to understand and master the damage and fracture of ceramic-matrix composites under stochastic loading.

Effect of Load Rate on Ultimate Tensile Strength of Ceramic Matrix Composites at Elevated Temperatures

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Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)

Book Synopsis Effect of Load Rate on Ultimate Tensile Strength of Ceramic Matrix Composites at Elevated Temperatures by :

Download or read book Effect of Load Rate on Ultimate Tensile Strength of Ceramic Matrix Composites at Elevated Temperatures written by and published by . This book was released on 2001 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: