Thermal Conductivity Paper Database

Heat transfer in microcellular polystyrene/multi-walled carbon nanotube nanocomposite foams

Polystyrene/multi-walled carbon nanotube (PS/MWCNT) nanocomposite foams were prepared in order to determine if these foams exhibited a reduced thermal conductivity in comparison to pristine polystyrene foam. The thermal conductivity of foams can be broken down into three modes of conduction: gas conductivity, solid conductivity, and radiative conductivity. The PS/MWCNT foams had decreased gas and radiative conductivities in comparison to the pristine PS foam; however, the solid conductivity ...

Author(s): Chul B. Park, Mehdi Saniei, Minh-Phuong Tran, Pengjian Gong, Petra Potschke, Piyapong Buahom

Effect of hexagonal boron nitride on high-performance polyether ether ketone composites

Polyether Ether Ketone (PEEK)/hexagonal boron nitride (h-BN) nanocomposites were formed by a planetary ball milling process and hot compression molding in order to determine the effect of the addition of h-BN on the properties of PEEK. In particular, the tensile strength, friction and wear behaviors, morphology, hardness, thermomechanical properties, and thermal conductivity of the nanocomposite were examined. Hexagonal boron nitride was added in filler concentrations of up to 5 wt. %. ...

Author(s): Lei Shang, Linghan Xiao, Liu Liu, Ming Li, Xiuping Zhang, Yanjie Chang, Yuhui Ao

Closed-cell carbon foams from diphenolic acid-based polybenzoxazine

Carbon foams were prepared from diphenolic acid-based benzoxazine foams by pyrolysis under nitrogen atmosphere. The method used in this article produced foams containing a large fraction of closed cells which is uncommon for carbon foams. The foams studied were found to possess similar mechanical properties common to other carbon foams; however, the presence of the high fraction of closed cells led to the lowest observed thermal conductivity ever reported for ...

Author(s): Alain Celzard, Alicia MartC-nez de Yuso Arisa, Alicia MartiB-nez de Yuso Arisa, Andrzej Szczurek, Camilo Javier Zuniga Ruiz, Juan Carlos Ronda, Vanessa Fierro, Virginia Cadiz

Properties of Nanocrystals-formulated Aluminosilicate Bricks

Seven different types of nanocrystals were used as additives in aluminosilicate bricks to determine if this is a valid method of decreasing the thermal diffusivity of the bricks for use as plant coating in the iron and steel industries. Each type of nanocrystal was added in  concentration percentages of 0.5, 1, and 2 wt. % to determine the effect of concentration on thermal transport and physical properties. It was found that all of the ...

Author(s): Barbara Federica Scremin, Caterina Lorusso, Claudia Carlucci, Emanuela Filippo, Francesca Baldassarre, Francesca Conciauro, Gaetano Terranova, Giuseppe Ciccarella, Paolo Maria Congedo, Rosaria D'Amato, Viviana Vergaro

Tailoring the structure of cellular vitreous carbon foams

The authors set out to prepare cellular vitreous carbon (CVC) foams with varying thermal and physical properties. This was accomplished by using tannin-based resin modified by different isocyanates in varying amounts. Three different experimental procedures were used to prepare foams with different physical and thermal properties. Physical properties of the foams studied include density, as well as pore volume, pore size and cell diameter. The transient plane source (TPS) technique ...

Author(s): Alain Celzard, Antonio Pizzi, F. L. Braghiroli, M. C. Basso, V. Fierro, X. Li