Results 21 to 30 of about 23,553 (264)

Overview of magnesium-ceramic composites: mechanical, corrosion and biological properties

Journal of Materials Research and Technology, 2021
Magnesium (Mg) and its alloys are potential metals for biodegradable implants because of several benefits, including a reduction of stress shielding effect in the implant for orthopedic application and the elimination of the step of a second surgery to ...
F. Khorashadizade, S. Abazari, M. Rajabi, H.R. Bakhsheshi-Rad, Ahmad Fauzi Ismail, Safian Sharif, Seeram Ramakrishna, F. Berto   +7 more
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Microstructure and Degree of Degradation of ZnO Varistors in Surge Arresters Due to Operation [PDF]

Archives of Metallurgy and Materials, 2018
The paper presents the test results for the microstructure of ZnO varistors comprising high voltage gapless surge arresters. The tests were performed on varistors produced in different periods and by various manufacturers.
P. Papliński, J. Wańkowicz, P. Ranachowski, Z. Ranachowski   +3 more
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Thermal/chemical degradation of ceramic cross-flow filter materials [PDF]

, 1989
This report summarizes the 14-month, Phase 1 effort conducted by Westinghouse on the Thermal/Chemical Degradation of Ceramic Cross-Flow Filter Materials program. In Phase 1 expected filter process conditions were identified for a fixed-bed, fluid-bed, and entrained-bed gasification, direct coal fired turbine, and pressurized fluidized-bed combustion ...
Alvin, M. A., Lane, J. E., Lippert, T. E.   +2 more
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Biological and mechanical degradation affecting the surface properties of aesthetic restorative

Brazilian Journal of Oral Sciences, 2017
Aim: To evaluate the roughness (Ra), Knoop hardness (KHN) and change of color (∆E) of esthetic restorative materials (Filtek Z350-composite nanoparticle; Empress Direct-composite nanohybrid and IPS e.Max-ceramic) subjected to contact with the ...
Bianca Medeiros Maran, Fabiana Scarparo Naufel, Andréia Bolzan de Paula, Giovana Spagnolo Albamonte Araújo, Regina Maria Puppin-Rontani   +4 more
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Considerations about Degradation of the Red Ceramic Material Manufactured with Granite Waste [PDF]

, 2011
Ceramics are used as construction materials since the earliest days of civilization, around 5,000 B.C. Manufactured fired earth bricks had firstly been used as protection walls against invaders and fierce animals. However, during the industrial revolution on century XIX, the steam machines allowed a marked development of the ceramic industry. The term “
Xavier Gustavo de Castro, Saboya Fernando, Maia Paulo Cesar de Almeida, Alexandre Jonas   +3 more
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Progress in ceramic materials and structure design toward advanced thermal barrier coatings

Journal of Advanced Ceramics, 2022
Thermal barrier coatings (TBCs) can effectively protect the alloy substrate of hot components in aeroengines or land-based gas turbines by the thermal insulation and corrosion/erosion resistance of the ceramic top coat. However, the continuous pursuit of
Zhi-Yuan Wei, Guo-Hui Meng, Lin Chen, Guang-Rong Li, Mei-Jun Liu, Wei-Xu Zhang, Li-Na Zhao, Qiang Zhang, Xiao-Dong Zhang, Chun-Lei Wan, Zhi-Xue Qu, Lin Chen, Jing Feng, Ling Liu, Hui Dong, Ze-Bin Bao, Xiao-Feng Zhao, Xiao-Feng Zhang, Lei Guo, Liang Wang, Bo Cheng, Wei-Wei Zhang, Peng-Yun Xu, Guan-Jun Yang, Hong-Neng Cai, Hong Cui, You Wang, Fu-Xing Ye, Zhuang Ma, Wei Pan, Min Liu, Ke-Song Zhou, Chang-Jiu Li   +32 more
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Advances in hydroxyapatite coatings on biodegradable magnesium and its alloys

Journal of Magnesium and Alloys, 2022
Magnesium is a candidate metal for biodegradable implant applications for its biodegradation tendency and excellent biocompatibility. Unfortunately, the high degradation rate of magnesium and also its localized degradation in physiological conditions are
Ai-Meng Zhang, Praneesh Lenin, Rong-Chang Zeng, M. Bobby Kannan   +3 more
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Recent Development in Advance Ceramic Materials and Understanding the Mechanisms of Thermal Barrier Coatings Degradation

Archives of Computational Methods in Engineering, 2023
AbstractMetallic alloys' behavior at high temperatures, especially their response to corrosion and formation of protective surface layers, has long been a focus of scientific inquiry. Although certain alloy compositions require an initiation period before hot corrosion advances to the propagation stage, no combination of alloys can be considered ...
Amjad Iqbal, Grzegorz Moskal
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Advanced 3Y-TZP bioceramic doped with Al2O3 and MnO2 particles potentially for biomedical applications: study on mechanical and degradation properties

Journal of Materials Research and Technology, 2018
The effectiveness of Al2O3 and MnO2 in enhancing mechanical properties and retarding degradation of 3 mol% yttria stabilized tetragonal zirconia polycrystalline (3Y-TZP) ceramic samples was evaluated by pressureless sintering at temperatures ranging from
Dinesh Ragurajan, Mohsen Golieskardi, Meenaloshini Satgunam, Md Enamul Hoque, Angela Min Hwei Ng, Mariyam Jameelah Ghazali, Ahmad Kamal Ariffin   +6 more
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Cone Beam Computed Tomography-An Effective Tool in Detecting Caries Under Fixed Dental Prostheses [PDF]

Journal of Clinical and Diagnostic Research, 2016
Introduction: Caries under restorations is the most common reason for re-treatment and replacement in restorative failures. To avoid failures of fixed dental prostheses, it is important to diagnose caries under it earlier.
Priyanka Ramesh Vedpathak, Shailesh Madhukar Gondivkar, Ajay Ramesh Bhoosreddy, Karan Rajendra Shah, Gaurav Ravishankar Verma, Gayatri Praveen Mehrotra, Ashwini Chandrakant Nerkar   +6 more
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