Scanning Electron Microscopy Archives - Page 3 of 6

Structure and oxidation resistance of micro-cellular Si–SiC foams derived from natural resins

Author(s): A. Ortona, Alain Celzard, Antonio Pizzi, C. Zollfrank, G. Amaral-Labat, S. Pusterla, V. Fierro

Si-SiC composite foams were prepared using tannin-based foams as templates. The foams were prepared by four different methods for the determination of which method would best produce a foam with ...

Keywords: Cellular Ceramics, ceramics, Mercury Porosimetry, Raman Microscopy, resin, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, TGA, Thermal Conductivity, Thermogravimetric Analysis, Thermogravimetric analysis (TGA), transient plane source method, X-ray Diffraction, X-ray diffraction (XRD), XRD

Influence of thermal process on microstructural and physical properties of ambient pressure dried hydrophobic silica aerogel monoliths

Author(s): Ai Du, Bin Zhou, Guangming Wu, Guangwu Liu, Guoqing Zu, Jun Shen, Xing Yuan Ni, Xingyuan Ni

Ambient pressure dried hydrophobic silica aerogel monoliths were prepared via simultaneous solvent exchange and surface modification in order to minimize volume shrinkage and density. At room temperature, the obtained silica ...

Keywords: Apparent Density, BET Method, Brunauer-Emmett-Teller, Brunauer-Emmett-Teller (BET), differential scanning calorimetry, Differential scanning calorimetry (DSC), DSC, Fourier transform infrared spectroscopy (FTIR), Fourier-Transform Infrared Spectroscopy, FTIR, Pore Size Distribution, Pore Size Distribution (PSD), porosity, PSD, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Silica aerogels, specific surface area, TGA, Thermal Conductivity, thermal insulation, Thermo Gravimetric Analyzer, Thermo Gravimetric Analyzer (TGA), Transient Plane Heat Source Method

Thermal Conductivity and Thermal Diffusivity of Thermoplastic Elastomeric Blends of Styrene Butadiene Rubber/High Density Polyethylene: Effect of Blend Ratio and Dynamic Crosslinking

Author(s): N. S. Saxena, P. Predeep, Rajani Agarwal, T. K. Jayasree

Styrene-butadiene (SBR) was added to high-density polyethylene (HDPE) to form a polymer blend. The thermal conductivity and thermal diffusivity of this polymer blend at room temperature were determined at varying ...

Keywords: Cross-Link Density, Polymer composites, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Thermal Conductivity, Thermal Diffusivity, TPS Method, Transient Plane Source, Transient plane source (TPS) method

Development of thermal insulating and sound absorbing agro-sourced materials from auto linked flax-tows

Author(s): Brice Mboumba-Mamboundou, Malek Benzeggagh, Michele Queneudec, Nemr El Hajj, Rose-Marie Dheilly, Zoheir Aboura

A rigid, self-supporting material derived from flax tow was prepared and its mechanical, thermal, hydrous, and acoustic properties were investigated. The study was performed to determine if this material would ...

Keywords: Biodegradable Composites, Compressive Strength, density, Flexural Strength, Moisture Adsorption, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Sound Absorption Coefficient, Thermal Conductivity, TPS Technique, Water Absorption

Experimental investigation on thermal and rheological properties of n-octadecane with dispersed TiO2 nanoparticles

Author(s): Ali A. Alemrajabi, Mamoun Muhammed, Muhammet S. Toprak, Nader Nikkam, Rahmatollah Khodabandeh, Sadegh Motahar

The thermal and rheological properties of n-octadecane, a phase change material, with dispersed TiO2 nanoparticles were investigated at varying temperatures. The properties were investigated in both the solid and liquid ...

Keywords: DLS, Dynamic Light Scattering, Dynamic Light Scattering (DLS), Nanoparticles, pcms, phase change materials, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Thermal Conductivity, TPS Theory, Transient Plane Source, Transient Plane Source (TPS) Theory, viscosity

Structure and properties of rigid foams derived from quebracho tannin

Author(s): A. Martinez de Yuso, Alain Celzard, Antonio Pizzi, M.C. Lagel, V. Fierro

Rigid foams were prepared using quebracho tannins and their physical and thermal properties were determined experimentally. These properties were then compared to those of rigid foams derived from mimosa tannins ...

Keywords: building materials, Bulk Density, Cell Diameter, Mechanical Tests, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Skeletal Density, Tannin-Based Foams, Thermal Conductivity, transient plane source method, Young's Modulus

Composition Control and Thermoelectric Properties of Quaternary Chalcogenide Nanocrystals: The Case of Stannite Cu2CdSnSe4

Author(s): Alejandro Perez-Rodriguez, Alejandro Pérez-Rodríguez, Alexey Shavel, Andreu Cabot, Andrew Fairbrother, Doris Cadavid, Joan Daniel Prades, Joan Ramon Morante, Jordi Arbiol, Maria Ibanez, Nuria Garcia-Castello, Nuria García-Castelló, Reza Zamani, Victor Izquierdo-Roca, Wenhua Li

The authors present a method of producing Cu2CdSnSe4 quaternary nanocrystals using a colloidal synthesis route that could be used for future industrial synthesis. The nanocrystals prepared showed great potential ...

Keywords: Copper, EDX, Electrical Resistivity, Energy Dispersive X-Ray, Energy Dispersive X-Ray (EDX), Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), Seebeck coefficient, SEM, TEM, Thermal Conductivity, Thermoelectric Materials, TPS, transient plane source method, Transient Plane Source Method (TPS), Transmission electron microscopy, Transmission electron microscopy (TEM), UV-Vis, X-ray Diffraction, X-ray diffraction (XRD), XRD

Thermal conductivity improvement of composite carbon foams based on tannin-based disordered carbon matrix and graphite fillers

Author(s): Alain Celzard, Antonio Pizzi, P. Jana, V. Fierro

Composite carbon foams were prepared by mixing tannin-based resin with various graphite powders in an effort to improve the thermal conductivity relative to pristine carbon foams in order to use ...

Keywords: carbon, Cell Size, Compressive Strength, density, Fillers, Foams, graphite, pcms, phase change materials, porosity, Quasi-Static Compression, resin, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Thermal Conductivity, transient plane source method, Window Size, Young's Modulus

Experimental determination and fractal modeling of the effective thermal conductivity of autoclaved aerated concrete: Effects of moisture content

Author(s): Hong-Qing Jin, Li-Wu Fan, Xiao-Li Yao, Xu Xu, Zi-Tao Yu

Autoclaved aerated concrete was studied because it has potential to be used in the design of energy-efficient buildings. Three different samples were tested, each with a unique density. Of particular ...

Keywords: building envelope, Building Envelopes, building materials, Bulk Density, concrete, construction, Matrix Density, Mercury Intrusion Porosimetry, Moisture Content, porosity, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Thermal Conductivity, Thermal Constants Analyzer, TPS Technique, Transient Plane Source, Transient plane source (TPS) method, X-ray Diffraction

Novel nanofluids based on mesoporous silica for enhanced heat transfer

Author(s): B. Palm, E. B. Haghighi, M. Muhammed, M. S. Toprak, M. Saleemi, N. Nikkam, R. Khodabandeh, S. Li

The authors have dispersed mesoporous silica (MPSiO2) nanoparticles in water and determined the thermal conductivity for each of the resulting nanofluids. It was determined that the thermal conductivity of the ...

Keywords: Fourier transform infrared spectroscopy (FTIR), Fourier-Transform Infrared Spectroscopy, FTIR, Mesoporous Silica, Nanofluids, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, TEM, Thermal Conductivity, transient plane source method, Transmission electron microscopy, Transmission electron microscopy (TEM), Zeta Potential Analysis

Keyword: Scanning Electron Microscopy

Structure and oxidation resistance of micro-cellular Si–SiC foams derived from natural resins

Influence of thermal process on microstructural and physical properties of ambient pressure dried hydrophobic silica aerogel monoliths

Thermal Conductivity and Thermal Diffusivity of Thermoplastic Elastomeric Blends of Styrene Butadiene Rubber/High Density Polyethylene: Effect of Blend Ratio and Dynamic Crosslinking

Development of thermal insulating and sound absorbing agro-sourced materials from auto linked flax-tows

Experimental investigation on thermal and rheological properties of n-octadecane with dispersed TiO2 nanoparticles

Structure and properties of rigid foams derived from quebracho tannin

Composition Control and Thermoelectric Properties of Quaternary Chalcogenide Nanocrystals: The Case of Stannite Cu2CdSnSe4

Thermal conductivity improvement of composite carbon foams based on tannin-based disordered carbon matrix and graphite fillers

Experimental determination and fractal modeling of the effective thermal conductivity of autoclaved aerated concrete: Effects of moisture content

Novel nanofluids based on mesoporous silica for enhanced heat transfer

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