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43 articles for “Ceramic”
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Research ArticleOpen accessEvery word in the titleApplication of Direct Current and Temperature Stresses of Low-Voltage ZnO Based Varistor CeramicsM. G.M. Sabri, B. Z. Azmi, Zahid Rizwan et al.Problem statement: The stresses to humidity, DC and AC bias, multiple impulse voltages and high temperatures are known to affect the varistor performance and it is also interesting to know the effect of both DC bias and temperature stresses at the same time. Approach: Here, the simultaneous DC and temperature stresses degradation was investigated to see the changes of nonlinear … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 8,379 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSIMULTANEOUS OPTIMISATION OF DRYING PARAMETERS OF CERAMIC BODIESSalah Mahmoudi, Ezzeddine Srasra, Fouad ZargouniThis study deals with the mineralogical, physico-chemical and geotechnical analyses of representative Aptian clays in the north-east of Tunisia. X-ray diffraction reveals a predominance of illite (50-60 wt.%) associated to kaolinite and interstratified illite/smectite. The accessory minerals detected in raw materials are quartz, calcite and Na-feldspar. The average amounts of silica, alumina and alkalis are 52, 20 and 3.5 wt.%, … …Current Research in Geoscience, Vol. 4, Issue 1 · 1 Jul 2014 · 6,991 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSurface Bioactivity of Sol Gel Derived 3Y-TZP Bioinert Ceramic through Hydroxylation Technique Using 5M H3PO4R. Velmurugan, S. Kanagesan, S. Jesurani, T. KalaivaniProblem statement: This study presented bone like apatite formation on yttria stabilized zirconia in Simulated Body Fluid (SBF) through hydroxylation technique. Approach: Sol gel route was used to prepare yttria stabilized zirconia. Then it was hydroxylated with 5M H3PO4 for formation of Zr-OH group. Moreover, the growth rate of calcium and phosphate on zirconia substrate was examined using simulated body … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,244 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMicroleakage Assessment of CAD/CAM Endo Crown Restorations (an in vitro Study)Mohamed Ahmed Wakwak, Karim Sherif Adly, Abdallah Ahmed Abdelhady, Ahmed Ramdan ElmanakhlyThe preservation of tooth structure is an important factor in the successful restoration of endodontically treated teeth. The loss of structural integrity increases the occurrence of crown fractures and microleakage at the margins of restorations in endodontically treated teeth compared with vital teeth. A total of twenty endocrowns were fabricated in this study and the endocrown was divided into two … …Current Research in Dentistry, Vol. 14, Issue 1 · 13 Apr 2023 · 6,179 accessesView PDFCite
Research ArticleOpen accessIn the keywordsViability of Using Local Waste Materials in the Production of High-Performance and Self-Compacting ConcreteSayed Mohamad Soleimani, Abdel Rahman Alaqqad, Ali Behbehani et al.The objective of this study is to investigate the effects of using local waste materials on the properties of fresh and hardened high performance and self-compacting concrete. Crushed ceramic products and steel slag from electric-arc furnaces were used as partial replacements of traditional concrete raw materials in the production of self-compacting and high-performance concrete, which were obtained from local factories … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 1 · 6 Jan 2020 · 8,077 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDetermination of Kinetic Correction Coefficient of Fluid Flow Using a Generic Multiple Orifice Physical Scale Model StructureEmmanuel M. AdigioProblem statement: Diesel particulate filters are fast becoming integral parts of diesel engines, light and heavy duty, due to their potential in the reduction of particulate matter from exhaust gases and their noise muffling property. Consequently, several researchers are developing mathematical models for the study of fluid flow through the filter substrate and in the aiding of filter systems design. … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 7,553 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDensification Behaviour of a Red Firing Tunisian Triassic ClayHajer Baccour, Mounir Medhioub, Fakher Jamoussi, Taher. MhiriInvestigations were undertaken to assess the thermal modification in clay products from Triassic sedimentary deposits. This study deals with the mineralogical, physico-chemical, thermal analysis and faience making attributes of representative Triassic clay in the south-Eastern Tunisia. The data collected from these techniques show that illite and kaolinite are the major clay phases. The accessory minerals detected in powdered rock are; … …American Journal of Applied Sciences, Vol. 5, Issue 3 · 31 Mar 2008 · 7,109 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Divalent Ions (A = Ca, Ba and Sr) Substitution in La-A-Mn-O Manganite on Structural, Magnetic and Electrical Transport PropertiesK. P. Lim, S. W. Ng, S. A. Halim et al.Problem statement: Microstructure of the grain will influence the properties of a polycrystalline manganites when different dopant is introduced. In this work, an effort had been made to investigate the influence of Ca, Ba and Sr substitution in La site. Approach: Polycrystalline manganites compound of La0.67A0.33MnO3 where A = Ba, Sr and Ca had been prepared via conventional solid-state reaction … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 8,253 accessesView PDFCite
Research ArticleOpen accessIn the keywordsInduced Microcracking Affects Osteoblast Attachment on Hydroxyapatite Scaffolds for Tissue EngineeringIan O. Smith, Melissa J. Baumann, Eldon D. CaseBone microdamage caused by routine activity plays an important role in triggering targeted and nontargeted bone remodeling. Targeted remodeling occurs near localized areas of microdamage[1-4]. We hypothesize that bone remodeling may be directly and positively influenced by inducing microcracks in hydroxyapatite (HA) scaffolds for bone tissue engineering. A study by Case et al. showed microcracking in HA discs having >98% … …American Journal of Biochemistry and Biotechnology, Vol. 2, Issue 3 · 30 Sep 2006 · 6,557 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPeriodontal Bone Substitutes Application Techniques and Cost Evaluation: A ReviewJamaluddin Syed, Najmus Sahar, Raffaella Aversa et al.Bioactive Materials have been used since decades but the researches on these materials are still continuing in phase. This material got extra ordinary attention by the scientist and researchers. Bioactive material has ability to bind itself chemically with natural bone tissues. Bioactive materials bring revolution in the field of bone repair and implantology. Bioactive materials have also ability to effect … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 4 · 8 Nov 2016 · 8,686 accessesView PDFCite