Ablation, mechanical and thermal conductivity properties of vapor grown carbon fiber/phenolic matrix composites

Patton, Richard; Pittman, Charles U.; Wang, L; Hill, John; Day, Allan R.

doi:10.1016/s1359-835x(01)00092-6

Cited by 181 publications

(81 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Their average grain diameters are 45µm and 75µm. VGCF are produced by introducing an aerosol spray of a metal salt into a chamber of hydrocarbon gas heated to 1000~1200 °C [16]. Diameter of VGCFs is about 10µm and the shape is cylinder.…”

Section: Test Specimenmentioning

confidence: 99%

Strength of VGCF/Al Composites for High Thermal Conductivity

Fukuchi

Sasaki

Imanishi³

et al. 2010

JMMP

View full text Add to dashboard Cite

In this paper, the evaluation of the strength of the VGCF/Aluminum composites which have high thermal conductivity is reported. VGCF (Vapor Growth Carbon Fiber) is a kind of the Carbon nanotube (CNT) which has very high thermal conductivity as well as CNT. The composites are made by spark plasma sintering. The stress-strain curves of the composites are obtained by the tensile tests and show that the composites have brittle behavior. The brittleness of the composites increases with increase in the volume fraction of VGCF. A numerical simulation based on the micromechanics is conducted to estimate nonlinear behavior in the elastic deformation and plastic deformation of the stress-strain relations of the composites. The theories of Eshelby, Mori-Tanaka, Weibull, and Ramberg-Osgood are employed for the numerical simulation. The simulations give some information of the microstructural change in the composite related to the volume fraction of VGCF.

show abstract

Section: Test Specimenmentioning

confidence: 99%

Strength of VGCF/Al Composites for High Thermal Conductivity

Fukuchi

Sasaki

Imanishi³

et al. 2010

JMMP

View full text Add to dashboard Cite

show abstract

“…Figures 2(a) and 2(b) illustrate the fiber morphology of the vapour grown carbon fibers in different magnification. Patton et al confirmed that 65% vapour grown carbon fiber loading in VGCF composite get a good thermochemical ablation resistance for space shuttle reusable solid rocket motor [13]. Recent research on the effect of different oxidative surface treatments (nitric acid, plasma, air, and carbon dioxide) on the fibres surface shows the effectiveness of the nitric acid and plasma treatments for improving the surface reactivity without altering the morphology of the fibres.…”

Section: Vapour Grown Carbon Nanofibermentioning

confidence: 99%

“…Vapour grown carbon fibers (VGCFs) are the recent desirable materials in thermal shielding composites due to their superior thermal insulation, low thermal conductivity (0.45-0.58 W/mk), and high thermal shock resistance [13]. These nanofibers (VGCNFs) are cylindrical nanostructures with graphene layers arranged in a stacked cones shape.…”

Section: Vapour Grown Carbon Nanofibermentioning

confidence: 99%

Hybrid Carbon-Carbon Ablative Composites for Thermal Protection in Aerospace

Sanoj

Kandasubramanian

2014

Journal of Composites

View full text Add to dashboard Cite

Composite materials have been steadily substituting metals and alloys due to their better thermomechanical properties. The successful application of composite materials for high temperature zones in aerospace applications has resulted in extensive exploration of cost effective ablative materials. High temperature heat shielding to body, be it external or internal, has become essential in the space vehicles. The heat shielding primarily protects the substrate material from external kinetic heating and the internal insulation protects the subsystems and helps to keep coefficient of thermal expansion low. The external temperature due to kinetic heating may increase to about maximum of 500 ∘ C for hypersonic reentry space vehicles while the combustion chamber temperatures in case of rocket and missile engines range between 2000 ∘ C and 3000 ∘ C. Composite materials of which carbon-carbon composites or the carbon allotropes are the most preferred material for heat shielding applications due to their exceptional chemical and thermal resistance.

show abstract

“…Patton et al [2] used Vapor grown carbon fiber as reinforcement along with phenolic resin and showed improved thermal and mechanical properties, which promises for rocket nozzle application. Pulci et al [3] used phenolic resin with carbon based graphitic felt and graphitic foam to manufacture ablative material for re-entry space vehicles.…”

Section: Introductionmentioning

confidence: 99%