Thermal-shock behavior of a Nicalon-fiber-reinforced hybrid glass-ceramic composite

Chawla, Nikhilesh; Chawla, K. K.; Koopman, M.; Patel, B.; Coffin, C.; Eldridge, Jeffrey I.

doi:10.1016/s0266-3538(01)00096-3

Cited by 32 publications

(16 citation statements)

References 20 publications

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“…This behavior yields intraply concentration stress, which is developed because of the difference of the cure and the operational temperature that requires further investigation. The aforementioned situation involves several types of interface among them there are fiber, matrix or micromechanical features [1][2][3][4][5] . A better understanding of interfacial properties and a characterization of interfacial adhesion strength can help to evaluate the mechanical behavior of fiber reinforced composite materials.…”

Section: Introductionmentioning

confidence: 99%

“…Because of the large mismatch in the CTE of the composite components, microcracking is prone to appear when there are temperature changes 5 . The concern about the thermal fatigue phenomena that involves changes in thermal environment has been a source of study due DI: D 10.1590/S1516-14392012005000062 to failures that occur in static applications, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of cumulative damage by using ultrasonic C-scan on carbon fiber/epoxy composites under thermal cycling

Shiino¹,

Faria²,

Botelho³

et al. 2012

Mat. Res.

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In recent years, structural composites manufactured by carbon fiber/epoxy laminates have been employed in large scale in aircraft industries. These structures require high strength under severe temperature changes of -56° until 80 °C. Regarding this scenario, the aim of this research was to reproduce thermal stress in the laminate plate developed by temperature changes and tracking possible cumulative damages on the laminate using ultrasonic C-scan inspection. The evaluation was based on attenuation signals and the C-scan map of the composite plate. The carbon fiber/epoxy plain weave laminate underwent temperatures of -60° to 80 °C, kept during 10 minutes and repeated for 1000, 2000, 3000 and 4000 times. After 1000 cycles, the specimens were inspected by C-scanning. A few changes in the laminate were observed using the inspection methodology only in specimens cycled 3000 times, or so. According to the found results, the used temperature range did not present enough conditions to cumulative damage in this type of laminate, which is in agreement with the macro -and micromechanical theory.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of cumulative damage by using ultrasonic C-scan on carbon fiber/epoxy composites under thermal cycling

Shiino¹,

Faria²,

Botelho³

et al. 2012

Mat. Res.

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“…[3][4][5][6][7][8][9] These studies have shown that the characteristics of thermal shock damage in fiber-reinforced composites were directly affected by the woven structure of the fiber preforms. Yin et al studied the thermal shock behavior of a three-dimensional (3-D) C/SiC composite quenched in air.…”

Section: Introductionmentioning

confidence: 99%

Thermal shock behavior of a three-dimensional SiC/SiC composite

Cheng

Zhang

et al. 2006

Metall Mater Trans A

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Thermal shock behavior of a three-dimensional (3-D) SiC/SiC composite was studied using the water-quenched method. Thermal shock damage of the composite was assessed by scanning electron microscopy characterization and residual three-point-bending strength. In the thermal shock process, the composite displayed the same bending mechanical behaviors as those of the original composite and retained 80 pct of the original strength in the longitudinal direction after being quenched from 1200°C to 25°C in water for 100 cycles. However, the composite displayed anisotropy in resistance to thermal shock damage. The observed microdamage processes were as follows: (1) formation of micropores and long crack, (2) transfer and growth of pores, (3) saturation of the dimension and the density of pores, and (4) accelerated growth of the long crack along the longitudinal direction. The critical thermal shock number for the composite was about 50. When thermal shock was less than 50 cycles, the residual flexural strength of the composite decreased with thermal shock cycles increasing. When the number was greater than 50, the strength of the composite did not decrease further.

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“…Previous work on high temperature flexure testing of fiber SiC composites in air, [20][21][22], reported that the obtained high ultimate stress and toughness at room temperature began to show a significant loss of these properties in the 800-1100 C temperature range. Further tests were conducted in inert environments, [21,28], implied that exposure to high temperature air was responsible for the degradation because under these non-air environments no loss of strength or toughness and fibrosity occurred.…”

Section: Theoretical Backgroundmentioning

confidence: 98%

“…Studies on the tensile and compressive response of Silicon Carbide fiber reinforced lithium aluminosilicate glass ceramics have shown that the stress-strain characteristics of these unidirectional composites in combination with knowledge of residual stresses present in the matrix [4,5]. Although the mechanical response of continuous ceramic fiber reinforced CMCs is being extensively studied under conditions of static loading [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23], only limited information is available in the literature on the response to dynamic loading at elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Fracture Strength and Toughness of Continuous Alumina Fiber–Reinforced Glass Matrix Composites at Elevated Temperature

Mustafa

Al-Hamdan

Nimir

2011

Materials and Manufacturing Processes

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Thermal-shock behavior of a Nicalon-fiber-reinforced hybrid glass-ceramic composite

Cited by 32 publications

References 20 publications

Assessment of cumulative damage by using ultrasonic C-scan on carbon fiber/epoxy composites under thermal cycling

Assessment of cumulative damage by using ultrasonic C-scan on carbon fiber/epoxy composites under thermal cycling

Thermal shock behavior of a three-dimensional SiC/SiC composite

Dynamic Fracture Strength and Toughness of Continuous Alumina Fiber–Reinforced Glass Matrix Composites at Elevated Temperature

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