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11 articles for “thermal diffusivity”
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Research ArticleOpen accessPhrase in the titlePreparation of Porous Silicon P-Type and Thermal Diffusivity Measurement Using Photoacoustic TechniqueMohammed Jabbar Hussein, Suaad Sahib Hindal, Amany Akram AwaadPorous silicon (PSi) layers were formed on a p-type Si wafer. Electrochemical method was used to prepare 36 samples with three values of current density (10, 20 and 30) mA/cm2, each involved ( 20, 40, 60 and 80) min etching times the samples were heated to three selected temperatures of 100, 200 and 350°C in three groups. The first group … …International Journal of Structural Glass and Advanced Materials Research, Vol. 2, Issue 1 · 14 Nov 2018 · 7,437 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleEffect of Sr Substitution on Structure and Thermal Diffusivity of Ba1-xSrxTiO3 CeramicS.A. Halim, Z.A. Talib, Firas K. Mohamad Al-Asfoor et al.Problem statement: The aim of this research was to study the effect of Sr substitution on structure and thermal diffusivity of Bal-xSrxTiO3 ceramic at room temperature. Approach: Structural and thermal diffusivity of Ba1-xSrxTiO3 were studied by performing X-ray diffraction and photoflash measurements. The effects of Sr substitution on the structure and on the thermal diffusivity of Ba1-xSrxTiO3 (0≤x≤1) were investigated. … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 8,773 accessesView PDFCite
Research ArticleOpen accessPhrase in the titlePhotoacoustic Measurement of Thermal Diffusivity of Polypyrrole Conducting Polymer Composite FilmsM. Y. Lim, W. Mahmood Mat Yunus, A. Kassim, H.N.M.E. MahmudThe thermal diffusivity has been measured for the Polypyrrole-Polyethylene Glycol (PPy-PEG) composite films by the open photoacoustic method. The experimental data were analyzed for thermal diffusivity by fitting procedure. The different process parameters such as different concentrations of insulating polymer, monomer and electrolyte and the different voltages used to prepare the PPy-PEG composite films brought changes in thermal diffusivity. The … …American Journal of Applied Sciences, Vol. 6, Issue 2 · 28 Feb 2009 · 7,692 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleThermal Diffusivity of Carbon Pellets (CPs) Treated with KOHM. Haydari, M. M. Moksin, A. E. Abdelrahman et al.In this work thermal diffusivity of carbon pellets (CPs) treated with different percentage level of KOH has been studied. Thermal diffusivity measurements were carried out at room temperature by using photoflash technique. The technique consists of a camera flash having approximately 5 ms pulse duration for heating and a thin film of polyvinylidene difluoride (PVDF) attached to the back of … …American Journal of Applied Sciences, Vol. 5, Issue 2 · 28 Feb 2008 · 7,371 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleDetermination of Absorption Coefficients and Thermal Diffusivity of Modulated Doped GaAlAs/GaAs Heterostructure by Photothermal Deflection SpectroscopyS. Aloulou, M. Fathallah, M. Oueslati, A. SfaxiWe report in this study theoretical and experimental studies of photothermal deflection spectroscopy (PDS) for planar doped heterostructures AlGaAs/GaAs. The PDS spectra at T=300K are recorded by varying the wavelength of the excited radiation for different modulation frequencies. They show two different regions related to the fundamental electronic transitions from GaAs and Si doped AlGaAs. The DX levels have been … …American Journal of Applied Sciences, Vol. 2, Issue 10 · 31 Oct 2005 · 7,262 accessesView PDFCite
Research ArticleOpen accessIn the keywordsExperimental Investigation of Thermo-Physical Properties of Soil Using Solarisation TechnologyAhmed Abed Gatea Al-Shammary, Abbas Kouzani, Akif Kaynak et al.Soil Thermo-Physical Properties (TPP) depend on heat transfer in the soil. This paper presents a study on different soil solarisation technologies influenced by soil TPP. This study evaluates three factors: The tillage depth for soil at three levels (15, 25 and 45 cm), the number of plastic film at three levels (single, double and without plastic film) and three cases … …American Journal of Applied Sciences, Vol. 14, Issue 7 · 17 Jul 2017 · 7,957 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAppraisal of Thermal Properties of Mud in the Ariake Sea, JapanM. Azizul Moqsud, Shigenori Hayashi, Yan Jun Du, Daisuke SuetsuguIn order to explore the thermal properties of the Ariake Sea mud and to find out the affecting factors which affect these values, a portable thermal properties analyzer was used. Thermal conductivity, thermal resistivity, thermal diffusivity and volumetric heat capacity of the mud samples collected from both the tidal flat and inside the deep sea were measured in the laboratory. … …American Journal of Environmental Sciences, Vol. 4, Issue 2 · 30 Apr 2008 · 6,966 accessesView PDFCite
Research ArticleOpen accessIn the abstractThermal Characterization of an Eco Conce Based on Lateritic Gravel, Millet Pods and CementDjossou Ayihaou Armand, Doko Kouandété Valéry, Wade Doukago Yacoubou Soumanou et al.To simultaneously meet the need of thermal confort and living environment protection, vegetable biomass valorisation in building sector is of particular importance. In this context, the main objective of this study is to produce a lightweight composite concrete based on millet pods and lateritic gravel with a cement matrix for use in buildings to help improve thermal comfort and protect … …American Journal of Engineering and Applied Sciences, Vol. 14, Issue 3 · 16 Sep 2021 · 6,489 accessesView PDFCite
EditorialOpen accessIn the abstractVolume 2: and SGAMR Goes!Chiara Bedon, Mario D’Aniello, Flavio StochinoThe year 2018 starts with a great confirmation for SGAMR! The journal has been selected to host the extended version of some selected papers presented during the 6th International Workshop on Design in Civil and Environmental Engineering (DCEE2017), held at the University of Cagliari (Italy) during November 2017. A summary of selected papers from highly ranked, international scientists can be … …International Journal of Structural Glass and Advanced Materials Research, Vol. 4, Issue 1 · 28 Aug 2020 · 5,737 accessesView PDFCite
EditorialOpen accessIn the abstractSpecial Issue on Current Challenges in Materials DesignChiara Bedon, Fausto Mistretta, Mauro Sassu, Flavio StochinoAkhoundi, F., G. Vasconcelos and P. Lourenço, 2018. In-plane behavior of infills using glass fiber shear connectors in Textile Reinforced Mortar (TRM) Technique. Int. J. Struct. Glass Adv. Mat. Res., 2: 1-14. DOI: 10.3844/sgamrsp.2018.1.14 Baraldi, D., F. Minghini, E. Tezzon and N. Tullini, 2018. Nonlinear analysis of RC box culverts resting on a linear elastic soil. Int. J. Struct. Glass … …International Journal of Structural Glass and Advanced Materials Research, Vol. 2, Issue 1 · 11 Jul 2018 · 6,709 accessesView PDFCite