Effect of carbon fabric whiskerization on mechanical properties of CC composites

Kowbel, W.; Bruce, Carl; Withers, J.C.; Ransone, P. O.

doi:10.1016/s1359-835x(97)00007-9

Cited by 51 publications

(29 citation statements)

References 6 publications

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“…This result indicates that the in-plane properties of a fiber reinforced composite constructed from this material would not decrease as all previous studies have found. [2][3][4] …”

Section: Single-fiber Tensile Testingmentioning

confidence: 99%

“…In ''whiskerization'', single crystals of silicon carbide or silicon nitride are grown on the surface of the fiber. Rabotnov et al [2] and Kowbel et al [3] demonstrated improvements of 200-300% in interlaminar shear strength for carbon/epoxy and carbon/carbon composites, respectively. Improvements were attributed to through-thickness reinforcement and increased interfacial area.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Increased Interface Strength in Carbon Fiber Composites through a ZnO Nanowire Interphase

Lin

Ehlert

Sodano

2009

Adv Funct Materials

219

178

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One of the most important factors in the design of a fiber reinforced composite is the quality of the fiber/matrix interface. Recently carbon nanotubes and silicon carbide whiskers have been used to enhance the interfacial properties of composites; however, the high growth temperature degrade the fiber strength and significantly reduce the composite's in‐plane properties. Here, a novel method for enhancing the fiber/matrix interfacial strength that does not degrade the mechanical properties of the fiber is demonstrated. The composite is fabricated using low‐temperature solution‐based growth of ZnO nanowires on the surface of the reinforcing fiber. Experimental testing shows the growth does not adversely affect fiber strength, interfacial shear strength can be significantly increased by 113%, and the lamina shear strength and modulus can be increased by 37.8% and 38.8%, respectively. This novel interface could also provide embedded functionality through the piezoelectric and semiconductive properties of ZnO.

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“…This result indicates that the in-plane properties of a fiber reinforced composite constructed from this material would not decrease as all previous studies have found. [2][3][4] …”

Section: Single-fiber Tensile Testingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Increased Interface Strength in Carbon Fiber Composites through a ZnO Nanowire Interphase

Lin

Ehlert

Sodano

2009

Adv Funct Materials

219

178

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show abstract

“…The most common method of whiskerization involves coating fibers with SiC micro-whiskers through chemical vapor deposition (CVD) processes carried out at temperatures ranging from 1300°C to 1500°C. Kowbel et al [11] investigated non-catalytic SiC whisker formations as a method to increase shear and transverse properties of carbon-carbon composites. An increase in interlaminar shear strength was found with a low level of whiskerization; however, the in-plane properties of the resulting composite were considerably decreased due to the fiber's reaction with precursor materials during high temperature processing.…”

Section: Introductionmentioning

confidence: 99%

Effect of ZnO nanowire morphology on the interfacial strength of nanowire coated carbon fibers

Galan

Lin

Ehlert

et al. 2011

Composites Science and Technology

143

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“…3,4 As such, many prominent researchers have investigated methods for improving the interface of modern composite materials. Whiskerization, 3,4,5,6,7 chemical treatment, 8,9,10 and plasma treatment 11,12 have shown promising results for interface improvements; however the fiber's mechanical properties are often significantly degraded resulting in a composite with reduced inplane properties. 3 Poly(p-phenylene terephthalamide) (PPTA) or aramid fibers exhibit chemical resistance due to the high crystallinity of the fiber and the stability of the aromatic carbon atoms (Figure 1).…”

Section: Part 1 Evaluation For Hard Armormentioning

confidence: 99%

STIR: Tailored Interfaces for High Strength Composites Across Strain Rates

Sodano¹

2013

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The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. The objective of this STIR research effort was to study the influence of nanostructured interfaces in the interfacial behavior of polymer fiber reinforced composites such that lightweight materials can be designed for both structural and ballistic performance. To achieve this objective a nanostructured interface has been be grown on the fiber surface using a process recently developed by the PI. This process allows for growth at low temperature, which preserves the fiber strength and makes the growth compatible with polymer fibers. This is the first technique for ABSTRACTThe objective of this STIR research effort was to study the influence of nanostructured interfaces in the interfacial behavior of polymer fiber reinforced composites such that lightweight materials can be designed for both structural and ballistic performance. To achieve this objective a nanostructured interface has been be grown on the fiber surface using a process recently developed by the PI. This process allows for growth at low temperature, which preserves the fiber strength and makes the growth compatible with polymer fibers. This is the first technique for the growth of a reinforcing whisker or nanowire on polymer fibers. The nanowire growth process is highly controllable and acts to enhance the load transfer between the matrix and fiber while also providing out of plane reinforcement. The controllable nanowire growth offer a means for optimizing the interfacial properties such that an ideal material response can be obtained at both high and low strain rates. In addition to control of the nanowire morphology and load transfer, the adhesive bond between the brittle nanowires and the tough Kevlar fiber was varied such that under impact the interface releases the fiber to absorb the ballistic energy. (c) Presentations

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Effect of carbon fabric whiskerization on mechanical properties of CC composites

Cited by 51 publications

References 6 publications

Increased Interface Strength in Carbon Fiber Composites through a ZnO Nanowire Interphase

Increased Interface Strength in Carbon Fiber Composites through a ZnO Nanowire Interphase

Effect of ZnO nanowire morphology on the interfacial strength of nanowire coated carbon fibers

STIR: Tailored Interfaces for High Strength Composites Across Strain Rates

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