Results 151 to 160 of about 519 (191)

Development of a Combustor Liner Composed of Ceramic Matrix Composite (CMC)

Journal of Engineering for Gas Turbines and Power, 1998
The Research Institute of Advanced Materials Gas-Generator (AMG), which is a joint effort by the Japan Key Technology Center and 14 firms in Japan, has, since fiscal year 1992, been conducting technological studies on an innovative gas generator that will use 20 percent less fuel, weigh 50 percent less, and emit 70 percent less NOx than the ...
Kozi Nishio, Ken-ichiroh Igashira, Koji Take, Takeshi Suemitsu   +3 more
openaire   +1 more source

Erosion in Gas-Turbine Grade Ceramic Matrix Composites (CMCs)

Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, 2018
Erosion behavior of a large number of gas-turbine grade ceramic matrix composites (CMCs) was assessed using fine to medium grain garnet erodents at velocities of 200 and 300 m/s at ambient temperature. The CMCs used in the current work were comprised of nine different SiC/SiCs, one SiC/C, one C/SiC, one SiC/MAS, and one oxide/oxide.
N. Kedir, C. Gong, L. Sanchez, M. J. Presby, S. Kane, D. C. Faucett, S. R. Choi   +6 more
openaire   +1 more source

Erosion in an MI SiC/SiC Ceramic Matrix Composite (CMC)

Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, 2019
Abstract Erosion phenomenon of ceramic matrix composites (CMCs), attributed to their unique architectural configurations, is markedly different from conventional monolithic ceramic counterparts. Prior to further integration of CMCs into hot-section components of aeroengines subject to erosive environments, their erosion behavior needs to
M. J. Presby, C. Gong, S. Kane, N. Kedir, A. Stanley, D. C. Faucett, S. R. Choi   +6 more
openaire   +1 more source

Stress Redistribution and Notch Sensitivity in Ceramic Matrix Composites (CMCs)

Composites and Functionally Graded Materials, 1997
Abstract A new generation of relatively ‘ductile’ CMCs is being developed that expands the general utility of structural ceramic composites. These new materials rely on inelastic mechanisms such as interface failure, matrix cracking, fiber failure and fiber pullout to redistribute stress away from locations of stress concentration (Evans
Thomas J. Mackin, Mark C. Roberts, David Anderson   +2 more
openaire   +1 more source

Evaluation of Stress Redistribution and Notch Sensitivity in Ceramic Matrix Composites (CMCs)

Composites and Functionally Graded Materials, 1997
Abstract Damage tolerance, which depends upon inelastic mechanisms, is crucial to the general utility of ceramic matrix composites (CMCs). Recent experiments have confirmed several damage mechanisms and revealed that stress redistribution does occur in CMCs.
Mark C. Roberts, Thomas J. Mackin
openaire   +1 more source

Damage Characterization of Ceramic Matrix Composites (CMCs) during Tensile Testing

Key Engineering Materials, 2005
Nondestructive evaluation (NDE) techniques were used for the tensile damage characterization in ceramic matrix composites (CMCs). Ultrasonic testing (UT) and infrared (IR) thermography were employed to assess defects and/or damage evolution before and during mechanical testing.
Jeong Guk Kim, Jong Duk Chung, Joon Hyun Lee, Yeon Uk Jeong, Yong Ki Hong, Won Kyung Kim, Jang Sik Pyun, Dae Sung Bae   +7 more
openaire   +1 more source

Sector Rig Test of a Ceramic Matrix Composite (CMC) Combustor Liner

Volume 2: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Environmental and Regulatory Affairs, 2006
Ceramic Matrix Composite (CMC) combustor liners, due to their high temperature capability, enable the elimination of film cooling present in current metallic liners without increasing the pressure drop in the combustor section of a gas turbine engine. The absence of film cooling and the higher temperature capability of the CMC liner leads to complete ...
Venkat Vedula, Jun Shi, Shiling Liu, David Jarmon   +3 more
openaire   +1 more source

Probabilistic-statistical approach to the mechanical behavior of ceramic matrix composites (CMCs)

Advanced Composite Materials, 1999
The approach to the mechanical behavior of CMCs that is proposed, is based on a statistical-probabilistic description of multiple matrix cracking and fiber failures. It is applied to unidirectional and woven SiC/SiC composites. The predicted stress-strain behaviors were in good agreement with available experimental data.
openaire   +1 more source

Static Mechanical Characterization of Ceramic Matrix Composites (CMCs)

2021
Dragan Adamovic, Fatima Zivic
openaire   +1 more source

A polymer infiltration and pyrolysis (PIP) process model for ceramic matrix composites (CMCs)

Journal of the American Ceramic Society, 2021
Unni Santhosh, Jalees Ahmad, Yasser Gowayed   +2 more
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