Article
Polymer Science
Yunfang Liu, Hongying Duan, Qigu Huang
Summary: Research has shown that the addition of a suitable amount of functionalized graphene oxide can effectively enhance the interfacial bonding between short carbon fibers and the silicone rubber matrix, improving the properties of RTV silicone rubber composites.
Article
Energy & Fuels
Qin Hu, Yulong Deng, Longfang Xiao, Lichun Shu, Xingliang Jiang, Longwu Zhou, Guilai Yin
Summary: The ice coating poses a serious threat to the safe operation of the power system and affects electrical equipment. Vulcanized silicone rubber is prone to freezing, but its thermal insulation properties can be improved by adding phase change materials. The ratio of microcapsules to silicone rubber, latent heat, and phase transition temperature determine the thermal insulation performance of silicone rubber at low temperatures.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Engineering, Multidisciplinary
Ali Ahmed Salem, Kwan Yiew Lau, Zulkurnain Abdul-Malek, Chee Wei Tan
Summary: The study investigated the condition of RTV coated glass insulators under different coating damage modes and classified them based on flashover voltage and leakage current characteristics. The results showed that different coating damage modes significantly affected the flashover voltage and leakage current of the glass insulators, with the fan-shaped coating damage being the most vulnerable under heavy pollution. The proposed SVM model demonstrated strong capabilities in predicting flashover voltage, leakage current, and classifying the pollution severity of coating damage.
Article
Materials Science, Multidisciplinary
Feng An, Mengfei Zi, Qianxin Chen, Cong Liu, Ke Qu, Tingting Jia, Mingqiang Huang, Gaokuo Zhong
Summary: In this study, high-quality BTFM-CTO thin films were prepared on mica substrates using the sol-gel method. The films exhibited controllable ferroelectric and magnetic effects at room temperature. The in-plane ferroelectric domains of the films could be switched by applying bending strain or an external magnetic field, demonstrating the multifield control ferroelectric polarization properties of the flexible thin films.
MATERIALS TODAY PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Xiangyu Wang, Jing Zhou, Rui Meng, Yu Zhao, Weihong Guo
Summary: This paper investigates the modification of dopamine and its use as a crosslinking agent to enhance the mechanical strength and hydrophobicity of room-temperature-vulcanized silicone rubber. Experimental results demonstrate that the addition of dopamine significantly improves the thermal stability and mechanical strength of the silicone rubber, while also providing better hydrophobicity.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Chemistry, Multidisciplinary
Motohiro Kasuya, Yuka Sano, Masataka Kawashima, Kazue Kurihara
Summary: The fluorescence pH probe C. SNARF-4F was used to measure the fluorescence spectrum of aqueous electrolytes between mica or silica surfaces at different surface separations. The pH of the aqueous CsCl between mica decreased exponentially with decreasing surface separation. The interfacial pH was found to be influenced by electrolyte concentration, electrolyte species, and substrates, with variations in pH observed at different concentrations and with different cationic species of the electrolytes.
Article
Materials Science, Multidisciplinary
Suresh Kumar, Sanjeev Kumar, Pardeep Kumar Nagpal, Sharad Ramdas Gawade, Sachin Salunkhe, Udayagiri Chandrasekhar, Joao Paulo Davim
Summary: In this study, closed-cell foams of an Al-Si12CuFe alloy and its composite were developed using a stir casting process. The foaming temperature was optimized to control cell size and wall thickness, as well as the volatility of the zircon. CaCO3 was used as a blowing agent to achieve a uniform cell structure. The addition of zircon in the melt increased cell size and thickness as temperature increased.
Article
Chemistry, Multidisciplinary
Sebastian Bruns, Christian Minnert, Laszlo Pethoe, Johann Michler, Karsten Durst
Summary: The increasing use of oxide glasses in high-tech applications demonstrates the demand for novel engineering techniques on nano- and microscale. Shaping operations of oxide glasses at room temperature usually require high temperatures close or beyond the point of glass transition T-g. However, electron irradiation has been found to facilitate the viscous flow of amorphous silica at room temperature, offering potential for local microengineering.
Article
Polymer Science
Xinxin Yang, Zhaoyu Jiang, He Liu, Haibo Zhang, Xu Xu, Shibin Shang, Zhanqian Song
Summary: The mechanical properties and thermal stability of room temperature vulcanized silicone rubber can be effectively enhanced by the synergistic effect of rosin derivative DAG and SiO2, which provides new possibilities for expanding its applications.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Physics, Applied
Mikhail Khodzitsky, Anastasiia Tukmakova, Dmitry Zykov, Mikhail Novoselov, Ivan Tkhorzhevskiy, Artyom Sedinin, Anna Novotelnova, Anton Zaitsev, Petr Demchenko, Elena Makarova, Natallya Kablukova
Summary: A room-temperature terahertz detector based on a thermoelectric frequency selective surface has been successfully designed and tested, demonstrating high voltage responsivity and sensitivity compared to traditional detectors. This new detector shows promising potential for wide applications in the future.
APPLIED PHYSICS LETTERS
(2021)
Article
Polymer Science
Dan Zhao, Jin Cui, Xinying Dai, Shaogang Liu, Liqiang Dong
Summary: The study investigated the influence of graphene content on the magneto-piezoresistive characteristics of GR/RTV-MRE, showing that the piezoresistive coefficients of samples with different graphene content decrease with an increase in magnetic flux density within a certain range. When the volume fraction of graphene is less than 12%, the piezoresistive coefficient is positively correlated with it, but the increase in graphene content has little effect on the piezoresistive characteristics after exceeding 12%.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Composites
Amutheesan Manikkavel, Vineet Kumar, Jaehoon Kim, Dong Joo Lee, Sang Shin Park
Summary: In this study, flexible piezo-electric energy harvesters were made using high temperature vulcanized and room temperature vulcanized silicone rubbers. Different loading forces were applied to the specimens using a cyclic loading machine. The results showed that the addition of multi-walled carbon nanotubes (MWCNTs) increased the tensile and compression strength of the silicone rubber, resulting in higher voltage output. Furthermore, compression loading produced more voltage than bi-axial loading.
POLYMER COMPOSITES
(2022)
Article
Chemistry, Physical
F. Z. Chen, N. A. Mauro, S. M. Bertrand, P. McGrath, L. Zimmer, K. F. Kelton
Summary: The study on Cu-Zr-Al metallic glass forming liquids using a combination of experimental and simulation techniques revealed insights into the onset of structural ordering, temperature-dependent diffusivity and viscosity in these liquids, shedding light on their glass forming ability.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Materials Science, Characterization & Testing
Nicolas Candau, Oguzhan Oguz, Carlos Eloy Federico, Gregory Stoclet, Jean-Francois Tahon, Maria Lluisa Maspoch
Summary: The study on strain induced crystallization (SIC) of peroxide vulcanized natural rubber (NR)/ground tire rubber (GTR) composites showed that incorporating GTR into the NR matrix enhances the reinforcement of the composites at room temperature by acting as reinforcing fillers with high carbon black content, and by nucleating SIC in the NR matrix to generate more oriented crystallites that behave as supplementary reinforcing fillers.
Article
Materials Science, Multidisciplinary
Ming Zheng, Pengfei Guan
Summary: In this study, LSMO thin films were grown on single crystalline mica substrates and the impact of mechanical strain on magnetic properties was investigated. The results show a nonmonotonic dependence of magnetic moment on radius of curvature, which can be attributed to the mechanical bending-triggered lateral tensile strain. Moreover, excellent mechanical antifatigue character was found in the LSMO/mica structures. These flexible LSMO thin films with tunable magnetism and mechanical durability have promising prospect in designing stable flexible spintronic devices and wearable sensors.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
