High-Temperature Matrix Cracking, Opening and Closure in Ceramic-Matrix Composites

High-Temperature Matrix Cracking, Opening and Closure in Ceramic-Matrix Composites PDF Author: Longbiao Li
Publisher: CRC Press
ISBN: 1003816304
Category : Technology & Engineering
Languages : en
Pages : 118

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Book Description
Ceramic matrix composites (CMCs) can withstand higher temperatures, reduce cooling airflow, improve turbine efficiency, and greatly reduce structural mass compared to the high temperature alloys. This book focuses on the matrix first/multiple cracking, crack opening and closure behavior in CMCs at high temperatures. While conducting in situ experimental observations to analyze the damage mechanisms and failure modes, the author develops micromechanical damage models and constitutive models to predict the first matrix cracking stress, multiple matrix cracking density, matrix crack opening displacement, and cracking closure stress at high temperatures. The effects of composite’s constituent properties, stress level, and ambient temperature on matrix cracking, opening, and closure are also discussed. This book will help material scientists and engineering designers to understand and master the matrix cracking and closure behavior of fiber-reinforced CMCs.

High-Temperature Matrix Cracking, Opening and Closure in Ceramic-Matrix Composites

High-Temperature Matrix Cracking, Opening and Closure in Ceramic-Matrix Composites PDF Author: Longbiao Li
Publisher: CRC Press
ISBN: 1003816304
Category : Technology & Engineering
Languages : en
Pages : 118

Get Book

Book Description
Ceramic matrix composites (CMCs) can withstand higher temperatures, reduce cooling airflow, improve turbine efficiency, and greatly reduce structural mass compared to the high temperature alloys. This book focuses on the matrix first/multiple cracking, crack opening and closure behavior in CMCs at high temperatures. While conducting in situ experimental observations to analyze the damage mechanisms and failure modes, the author develops micromechanical damage models and constitutive models to predict the first matrix cracking stress, multiple matrix cracking density, matrix crack opening displacement, and cracking closure stress at high temperatures. The effects of composite’s constituent properties, stress level, and ambient temperature on matrix cracking, opening, and closure are also discussed. This book will help material scientists and engineering designers to understand and master the matrix cracking and closure behavior of fiber-reinforced CMCs.

Ceramic Matrix Composites

Ceramic Matrix Composites PDF Author: J. Paulo Davim
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110353008
Category : Technology & Engineering
Languages : en
Pages : 157

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Book Description
Composite materials are engineered from two or more constituents with significantly altered physical or chemical properties within the finished structure. Due to their special mechanical and physical properties they have the potential to replace conventional materials. This book, written by experts from all over the world, presents fundamentals and recent advances on ceramic matrix composites.

Matrix Cracking in Ceramic-Matrix Composites

Matrix Cracking in Ceramic-Matrix Composites PDF Author: Longbiao Li
Publisher: Springer Nature
ISBN: 9811902321
Category : Technology & Engineering
Languages : en
Pages : 170

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Book Description
This book focuses on the matrix cracking behavior in ceramic–matrix composites (CMCs), including first matrix cracking behavior, matrix cracking evolution behavior, matrix crack opening and closure behavior considering temperature and oxidation. The micro-damage mechanisms are analyzed, and the micromechanical damage models are developed to characterize the cracking behavior. Experimental matrix cracking behavior of different CMCs at room and elevated temperatures is predicted. The book can help the material scientists and engineering designers to better understand the cracking behavior in CMCs.

Method for repairing ceramic matrix composite (cmc) articles

Method for repairing ceramic matrix composite (cmc) articles  PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Durability of Ceramic-Matrix Composites

Durability of Ceramic-Matrix Composites PDF Author: Li Longbiao
Publisher: Woodhead Publishing
ISBN: 0081030223
Category : Technology & Engineering
Languages : en
Pages : 478

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Book Description
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

High-temperature Matrix Cracking, Opening and Closure in Ceramic-matrix Composites

High-temperature Matrix Cracking, Opening and Closure in Ceramic-matrix Composites PDF Author: Longbiao Li
Publisher:
ISBN: 9781032638577
Category : Airplanes
Languages : en
Pages : 0

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Book Description
"Ceramic matrix composites (CMCs) can withstand higher temperatures, reduce cooling airflow, improve turbine efficiency, and greatly reduce structural mass compared to the high temperature alloys. This book focuses on the matrix first/multiple cracking, crack opening and closure behavior in CMCs at high temperatures. While conducting in-situ experimental observations to analyze the damage mechanisms and failure modes, the author develops micromechanical damage models and constitutive models to predict the first matrix cracking stress, multiple matrix cracking density, matrix crack opening displacement, and cracking closure stress at high temperatures. The effects of composite's constituent properties, stress level, and ambient temperature on matrix cracking, opening, and closure are also discussed. This book will help material scientists and engineering designers to understand and master the matrix cracking and closure behavior of fiber-reinforced CMCs"--

Advances in Ceramic Matrix Composites

Advances in Ceramic Matrix Composites PDF Author: I M Low
Publisher: Woodhead Publishing
ISBN: 0081021674
Category : Technology & Engineering
Languages : en
Pages : 842

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Book Description
Advances in Ceramic Matrix Composites, Second Edition, delivers an innovative approach to ceramic matrix composites, focusing on the latest advances and materials developments. As advanced ceramics and composite materials are increasingly utilized as components in batteries, fuel cells, sensors, high-temperature electronics, membranes and high-end biomedical devices, and in seals, valves, implants, and high-temperature and wear components, this book explores the substantial progress in new applications. Users will gain knowledge of the latest advances in CMCs, with an update on the role of ceramics in the fabrication of Solid Oxide Fuel Cells for energy generation, and on natural fiber-reinforced eco-friendly geopolymer and cement composites. The specialized information contained in this book will be highly valuable to researchers and graduate students in ceramic science, engineering and ceramic composites technology, and engineers and scientists in the aerospace, energy, building and construction, biomedical and automotive industries. Provides detailed coverage of parts and processing, properties and applications Includes new developments in the field, such as natural fiber-reinforced composites and the use of CMCs in Solid Oxide Fuel Cells (SOFCs) Presents state-of-the-art research, enabling the reader to understand the latest applications for CMCs

Matrix Cracking of Ceramic-Matrix Composites

Matrix Cracking of Ceramic-Matrix Composites PDF Author: Longbiao Li
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0

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Book Description
In this chapter, the matrix cracking of fiber-reinforced ceramic-matrix composites (CMCs) is investigated using the energy balance approach. The relationship between the matrix cracking stress, fiber and interface oxidation, and fiber failure is established. The effects of the fiber volume, interface shear stress and interface debonding energy, fiber failure, and oxidation temperature on the time-dependent matrix cracking stress are analyzed. The experimental matrix cracking stress of different fiber-reinforced CMCs is predicted using the present models.

Ceramic Matrix Composites

Ceramic Matrix Composites PDF Author: Krishan K. Chawla
Publisher: Springer Science & Business Media
ISBN: 1461510295
Category : Technology & Engineering
Languages : en
Pages : 449

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Book Description
After an introductory chapter, the processing, microstructure, and properties of various ceramic materials, reinforcements, and their composites are described. A separate chapter is devoted to processing of ceramic reinforcements, with a special emphasis on fibers. Processing of ceramic matrix composites is the next chapter, which includes novel techniques such as sol-gel processing and ceramics from polymeric precursors. The next four chapters cover the subjects of interface region in ceramic composites, mechanical and physical properties, and the role of thermal stresses and the important subject of toughness enhancement. Laminated composites made of ceramics are described in a separate chapter. Finally, a chapter is devoted to various applications of ceramic matrix composites. Throughout the text, the underlying relationships between the components of the triad: processing, microstructure, and properties are brought out. An exhaustive list of references and suggested reading is provided.

Ceramic Fibers and Coatings

Ceramic Fibers and Coatings PDF Author: Committee on Advanced Fibers for High-Temperature Ceramic Composites
Publisher: National Academies Press
ISBN: 0309569036
Category : Technology & Engineering
Languages : en
Pages : 112

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Book Description
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.