Comparison of X-Ray Micro-Tomography Measurements of Densities and Porosity to Traditional Techniques for Carbon-Carbon Composites
نویسندگان
چکیده
The porosity in carbonaceous materials affects many of their properties. For this reason, the characterization of this porosity is very important. Many diverse techniques have been utilized to characterize the pores in carbon materials. Some of these techniques along with the use of X-ray microcomputed tomography (μCT) have been utilized in this study to provide significant insight into the pore structure of carbon-carbon composites. μCT is not only capable of providing information on the size, shape, and distribution of both open and closed pores in 3-dimensions but in conjunction with mercury porosimetry, it is also able to explain artifacts in the samples.
منابع مشابه
Investigation of hydrothermal process time on the size of carbon micro- and nano-spheres
In this study, carbon nano-micro spheres with tightly controllable size, regularand perfect shape, high yields and narrow size distribution were prepared simply fromglucose and DI water as precursors using a hydrothermal method. By setting the initialconcentration of glucose solution and changing the hydrothermal process time at aconstant temperature of 160 °C, carbon spheres with various sizes...
متن کاملEmpirical correlation for porosity deduction from X-ray computed tomography (CT)
For obtaining reservoir petrophysical properties, for example porosity, non-destructive methods such as X-ray computed tomography, CT, seems to be precise and accurate. Porosity is deducted from the CT image with a single scan via different techniques, such as pore space detection by image segmentation techniques then correlation with porosity. More than one hundred samples with carbonate li...
متن کاملبررسی خواص مکانیکی کامپوزیت کربن – کربن دو جهته بر پایه الیاف چوب درختان
An important parameter in composite materials is mechanical behavior and matrix-reinforcement interface interaction under applied stresses. In this investigation, bending strength of carbon-carbon composites synthesized from wood was analyzed as a measure of the composite mechanical properties. Also, densification efficiency of the products was determined by measuring the bulk density and open ...
متن کاملNew Activated Carbon from Persian Mesquite Grain as an Excellent Adsorbent
This paper presents a systematic study of the surface chemistry, porous texture and adsorptive characteristics of prepared new activated carbon using Persian mesquite grain. Several techniques and methodologies such as, proximate analysis, N2 adsorption–desorption isotherms, scanning electron microscope (SEM), Fourier transform infrared spectroscopy(FT-IR), X-ray Diffraction (XRD), X-ray photoe...
متن کاملAdvanced X-Ray Tomographic Methods for Quantitative Characterisation of Carbon Fibre Reinforced Polymers
In recent years, a strongly growing demand of aeronautic industry for light weight materials like carbon fibre reinforced polymers (CFRP) motivated by economic and environmental issues is observed. The main interest of using CFRP composites is based on weight reduction, and on the high fatigue resistance capabilities. The next generation aircrafts, as the Airbus A350 XWB aim to be made of more ...
متن کامل