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Seungwook Lim and Sungchul Yang
This paper describes the development of the constitutive model for early-aging viscoelastic concrete. And this paper provides the work related to material testing and modeling for identifying the required constitutive properties of early-age concrete.
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Yihua Dan and Jian Yang
The radome is an important component of the aircraft seeker. The radome of high-speed aircraft usually has ablation, which affects the electromagnetic performance of the radome. Therefore, it is important to study the electromagnetic performance of the r...
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Junjie Sun, Hao Zhu, Dajun Xu and Guobiao Cai
The mechanical expansion reentry vehicle has become the focus of deep space exploration because of its good deceleration effect and high stability. However, due to its special aerodynamic shape, its surface heat flux characteristics are different from tr...
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Bin Yu, Zhao Xu, Ruinan Mu, Anping Wang and Haifeng Zhao
Thermal expansion is inevitable for space structures under the alternating temperature of outer space around the earth. This may lead to the thermal stress and deformation due to the mismatch of the coefficient of thermal expansion. Near-zero thermal exp...
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Tong Sy Tien, Nguyen Thi Minh Thuy, Vu Thi Kim Lien, Nguyen Thi Ngoc Anh, Do Ng?c Bich, Le Quang Thanh
Pág. 73 - 80
This study aims to calculate the anharmonic thermal expansion (TE) coefficient of metal crystals in the temperature dependence. The calculation model is derived from the anharmonic correlated Debye (ACD) model that is developed using the many-body pertur...
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Per Söderlind, Lin H. Yang, Alexander Landa and Amanda Wu
Elasticity, lattice dynamics, and thermal expansion for uranium and U?6Nb alloy (elastic moduli) are calculated from density functional theory that is extended to include orbital polarization (DFT+OP). Introducing 12.5 at.% of niobium, substitutionally, ...
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So Young Kim, June Park, Seon Hoon Kim, Linganna Kadathala, Jong Hyeob Baek, Jin Hyeok Kim and Ju Hyeon Choi
PbO-SiO2-Al2O3-B2O3 (PSAB)-based glasses were prepared in order to determine the feasibility for laser sealing in the form of fiber. To reach a high quality of laser sealing, the tuning capability of CuO and Na2CO3 dopant concentration was examined on th...
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Farhan Abdullah, Kei-ichi Okuyama, Isai Fajardo and Naoya Urakami
The low Earth orbit (LEO) environment exposes spacecraft to factors that can degrade the dimensional stability of the structure. Carbon Fibre/Polyether Ether Ketone (CF/PEEK) can limit such degradations. However, there are limited in-orbit data on the pe...
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Linlin Liu, Mingmei Jiang, Juanjuan Yin, Wenfeng Guo and Tifeng Jiao
Perovskite-type was synthesized by two methods, the combustion method and conventional solid state reaction (SSR) method. The effect of synthesis methods on sinterability and physical properties of the ceramic were investigated. The results show that the...
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Min Il Kim, Jong Hoon Cho, Byong Chol Bai and Ji Sun Im
The graphite block as a phase change materials (PCMs) was manufactured by graphitization of a carbon block. Carbon blocks were prepared by filler (cokes or graphite) and binder (pitch). The binder-coated filler was thermally treated for carbonization. Th...
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Oleg S?b?l`,Andrii Meilekhov,Valeria Subbotin?,Olena Rebrova
Pág. 16 - 23
The method of x-ray diffractometry was used to study the effect of the composition of two, three, four and five elemental niobium-based alloys on their phase-structural state, average crystallite size, and thermal expansion coefficient in the temperature...
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Attila R. Imre, Axel Groniewsky, Gábor Györke, Adrienn Katona, Dávid Velmovszki
Pág. 276 - 285
Recent results are shown about the peculiarities of the pseudo-critical region, with special emphasis on properties important for energy production and conversion. The property-map of some materials, which are relevant as model fluids or as working / coo...
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This paper is a continuation of the previous work, aiming to explore the influence of fillet configurations on flow and heat transfer in a large meridional expansion turbine. The endwall of large meridional expansion turbine stator has a large expansion ...
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Piyanuch Luangtriratana, Baljinder K. Kandola, Sophie Duquesne and Serge Bourbigot
In this work, the thermal barrier efficiency of three commercial intumescent coatings of varying thicknesses on glass fibre-reinforced epoxy (GRE) composites has been studied using cone calorimetric parameters and temperature profiles through the thickne...
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Alexander Tkach, André Santos, Sebastian Zlotnik, Ricardo Serrazina, Olena Okhay, Igor Bdikin, Maria Elisabete Costa and Paula M. Vilarinho
If piezoelectric thin films sensors based on K0.5Na0.5NbO3 (KNN) are to achieve commercialization, it is critical to optimize the film performance using low-cost scalable processing and substrates. Here, sol–gel derived KNN thin films are deposited...
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Sahir Naqash, Marie-Theres Gerhards, Frank Tietz and Olivier Guillon
Because of an increasing interest in NaSICON materials as electrolyte materials in all-solid state sodium batteries, their thermal expansion was investigated in this study. The thermal expansion coefficient (CTE) of the Al and Y-substituted NaSICON compo...
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Moon Il Kim, Suhyun Kim, Taehee Kim, Dong Koo Lee, Bongkuk Seo and Choong-Sun Lim
Liquid epoxy resins have received much attention from both academia and the chemical industry as eco-friendly volatile organic compound (VOC)-free alternatives for applications in coatings and adhesives, especially in those used in households. Epoxy resi...
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Jinwoo An, S. Sonny Kim, Boo Hyun Nam and Stephan A. Durham
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Moon Il Kim, Suhyun Kim, Taehee Kim, Dong Koo Lee, Bongkuk Seo and Choong-Sun Lim
Liquid epoxy resins have received much attention from both academia and the chemical industry as eco-friendly volatile organic compound (VOC)-free alternatives for applications in coatings and adhesives, especially in those used in households. Epoxy resi...
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Djoille Denner Damm, André Contin, Fernando Cruz Barbieri, Vladimir Jesus Trava-Airoldi, Danilo Maciel Barquete and Evaldo José Corat
Academics and industry have sought after combining the exceptional properties of diamonds with the toughness of steel. Since the early 1990s several partial solutions have been found but chemical vapor deposition (CVD) diamond deposition on steel substra...
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