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- Annealing (1)
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- Dichroism (1)
- Dysprosium compounds (1)
- Eosin Y (1)
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- High pressure die casting (1)
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- Long range surface plasmon polariton; silver nanofilm; 1D photon crystal (1)
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- Metallic glass (1)
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Articles 1 - 6 of 6
Full-Text Articles in Engineering
On The Detection Of Carbon Fibre Storage Contamination And Its Effect On The Fibre-Matrix Interface, Quanxiang Li, Andrea L Woodhead, Jeffrey S Church, Minoo Naebe
On The Detection Of Carbon Fibre Storage Contamination And Its Effect On The Fibre-Matrix Interface, Quanxiang Li, Andrea L Woodhead, Jeffrey S Church, Minoo Naebe
Research outputs 2014 to 2021
Contamination caused by inappropriate carbon fibre (CF) storage may have an impact on their end use in reinforced composite materials. Due to the chemical complexity of CFs it is not easy to detect potential contaminants, especially at the early stage during manufacturing and handling. In this paper, X-ray Photoelectron Spectroscopy (XPS), Fourier Transform Infrared (FTIR) spectroscopy and Surface Energy Analysis (IGC-SEA) were used to assess the surfaces of CFs stored in polyolefin zip-lock bags for possible contamination. Only after over 2 months in-bag storage, was XPS capable of detecting a minor increase in nitrogen on the CF surface while FTIR …
Magneto-Optic Properties Of Ultrathin Nanocrystalline Ferrite Garnet Films In The 8k To 300k Temperature Interval, Viatcheslav Kotov, Vladimir Shavrov, A. Popkov, Mikhail Vasiliev, Kamal Alameh, Mohammad Alam, L. Alyabyeva, Dmitry Balabanov, Vladimir Burkov, M Virchenko
Magneto-Optic Properties Of Ultrathin Nanocrystalline Ferrite Garnet Films In The 8k To 300k Temperature Interval, Viatcheslav Kotov, Vladimir Shavrov, A. Popkov, Mikhail Vasiliev, Kamal Alameh, Mohammad Alam, L. Alyabyeva, Dmitry Balabanov, Vladimir Burkov, M Virchenko
Research outputs 2014 to 2021
A study of the initial stages of crystallization in RF magnetron-sputtered ferrite garnet films is reported, in which a series of ultrathin Bi2Dy1Fe4Ga1O12 layers is fabricated and characterized. The spectral and temperature dependencies of magnetic circular dichroism (MCD) of these films are studied in the temperature range from 300 K down to 8 K. Measured magneto-optical properties are reported in the spectral range between 300 and 600 nm. In ultrathin garnets at temperatures below 160 K, we found that between 360 and 520 nm, the spectral MCD dependencies were typical of bismuth-substituted garnets with high levels of gallium dilution in …
Fe73.5si13.5b9cu1nb3 Metallic Glass: Rapid Activation Of Peroxymonosulfate Towards Ultrafast Eosin Y Degradation, Jincheng Wang, Zhe Jia, Peng Qin, W. C. Zhang, M. D. Wang, T. B. Sercombe, Laichang Zhang
Fe73.5si13.5b9cu1nb3 Metallic Glass: Rapid Activation Of Peroxymonosulfate Towards Ultrafast Eosin Y Degradation, Jincheng Wang, Zhe Jia, Peng Qin, W. C. Zhang, M. D. Wang, T. B. Sercombe, Laichang Zhang
Research outputs 2014 to 2021
Discovering functional applications of metallic glasses (MGs) as heterogeneous catalysts is a fundamental and essential topic. This work reports the rapid production of sulfate radicals (SO4−) from peroxymonosulfate (PMS) using Fe73.5Si13.5B9Cu1Nb3 glassy ribbons as catalysts for Eosin Y (EY) dye wastewater treatment. The reaction rates (k) from the experimental data reveal that the EY degradation is well fitted with the pseudo-first-order kinetic model. The strong electron transfer ability is characterized by electrochemical methods, presenting an advanced catalytic performance for EY degradation. Various experimental parameters, including dye …
Near-Net Forming Complex Shaped Zr-Based Bulk Metallic Glasses By High Pressure Die Casting, Lehua Liu, Tao Zhang, Zhiyuan Liu, Chunyan Yu, Xixi Dong, Liangju He, Kuan Gao, Xuguang Zhu, Wenhao Li, Chengyong Wang, Peijie Li, Laichang Zhang, Lugee Li
Near-Net Forming Complex Shaped Zr-Based Bulk Metallic Glasses By High Pressure Die Casting, Lehua Liu, Tao Zhang, Zhiyuan Liu, Chunyan Yu, Xixi Dong, Liangju He, Kuan Gao, Xuguang Zhu, Wenhao Li, Chengyong Wang, Peijie Li, Laichang Zhang, Lugee Li
Research outputs 2014 to 2021
Forming complex geometries using the casting process is a big challenge for bulk metallic glasses (BMGs), because of a lack of time of the window for shaping under the required high cooling rate. In this work, we open an approach named the “entire process vacuum high pressure die casting” (EPV-HPDC), which delivers the ability to fill die with molten metal in milliseconds, and create solidification under high pressure. Based on this process, various Zr-based BMGs were prepared by using industrial grade raw material. The results indicate that the EPV-HPDC process is feasible to produce a glassy structure for most Zr-based …
Photonic Crystal-Supported Long-Range Surface Plasmon-Polaritons Propagating Along High-Quality Silver Nanofilms, Sergey K. Sekatskii, Anton Smirnov, Giovanni Dietler, Mohammad Nur E. Alam, Mikhail Vasiliev, Kamal Alameh
Photonic Crystal-Supported Long-Range Surface Plasmon-Polaritons Propagating Along High-Quality Silver Nanofilms, Sergey K. Sekatskii, Anton Smirnov, Giovanni Dietler, Mohammad Nur E. Alam, Mikhail Vasiliev, Kamal Alameh
Research outputs 2014 to 2021
Long-range surface plasmon-polaritons (LRSPP) with a propagation length equal to 180 microns at the wavelength of 633 nm have been observed at the interface of 12.5 nm-thick silver nanofilm, coated by a 20 nm-thick protective ZnS layer, with air. Their propagation has been supported by a specially prepared 40-layer 1D Photonic Crystal designed in such a manner that silver layer has been deposited directly onto thin ZnS layer, earlier shown to be a non-oxide material most suitable for the preparation of high-quality thin silver nanofilms.
Homogenization And Growth Behavior Of Second-Phase Particles In A Deformed Zr-Sn-Nb-Fe-Cu-Si-O Alloy, Liang-Yu Chen, Peng Sang, Lina Zhang, Dongpo Song, Yanqiu Chu, Linjiang Chai, Laichang Zhang
Homogenization And Growth Behavior Of Second-Phase Particles In A Deformed Zr-Sn-Nb-Fe-Cu-Si-O Alloy, Liang-Yu Chen, Peng Sang, Lina Zhang, Dongpo Song, Yanqiu Chu, Linjiang Chai, Laichang Zhang
Research outputs 2014 to 2021
Homogeneous distribution of fine second-phase particles (SPPs) fabricated by cycles of deformation and annealing in zirconium alloys is a critical consideration for the corrosion resistance of fuel claddings. Different deformation degrees of zirconium alloys would result in distinctive microstructures, leading to a distinct growth of SPPs during subsequent annealing. Unfortunately, the homogenization and growth behavior of SPPs in deformed zirconium alloys have not been well studied. In this work, a β-quenched Zr–Sn–Nb–Fe–Cu–Si–O alloy was rolled and annealed at 580◦C or 680◦C. The morphologies, distributions, and sizes of SPPs resulting from the different processing procedures were investigated. A linear distribution of …