Study Results from Shanghai Jiao-Tong University Broaden Understanding of Heat Transfer Research [Microstructural effect on the radiative properties of YSZ thermal barrier coatings (TBCs)]
By a News Reporter-Staff News Editor at Journal of Technology -- Research findings on Heat Transfer Research are discussed in a new report. According to news reporting originating in Shanghai, People's Republic of China, by VerticalNews journalists, research stated, "Thermal barrier coatings (TBCs) are not the pure bulk materials, and they contain many different micro/nano structures caused by the plasma spraying process. The microstructures in the coatings play a very important role on mechanical and thermal properties, therefore, the coating properties differ hugely from those of the corresponding bulk materials."
The news reporters obtained a quote from the research from Shanghai Jiao-Tong University, "The influence of microstructures on thermal conductivity has been investigated by many researchers, however their effect on radiative heat transfer is seldom studied. The radiative heat transfer will become increasingly important as the temperature rises, and this warrants the study on the influence of microstructures on radiative properties. In the present paper, Finite-Difference-Time-Domain (FDTD) method was employed to simulate the radiative heat transfer behaviors of TBCs with different types of microstructures. The relationship between microstructures and radiative properties of the coating is investigated. Furthermore, the parameters of microstructures such as defect size, shape coefficient, porosity and orientation angle are examined in detail."
According to the news reporters, the research concluded: "The results will help us to further understand the radiative heat transfer process across the TBCs and will provide us a theoretical guide to design TBCs with a high thermal insulation property."
For more information on this research see: Microstructural effect on the radiative properties of YSZ thermal barrier coatings (TBCs). International Journal of Heat and Mass Transfer, 2014;73():59-66. International Journal of Heat and Mass Transfer can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; International Journal of Heat and Mass Transfer - www.elsevier.com/wps/product/cws_home/210)
Our news correspondents report that additional information may be obtained by contacting B.J. Zhang, Shanghai Jiao Tong University, Sch Mech Engn, Minist Educ, Key Lab Power Machinery & Engn, Shanghai 200240, People's Republic of China. Additional authors for this research include B.X. Wang and C.Y. Zhao.
Keywords for this news article include: Asia, Shanghai, Heat Transfer Research, People's Republic of China
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