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January, 2021, Vol.30 No 1
A cross-sectional SEM image of SVPS HfC coating heated to 2000 degrees Celsius using laser. The SVPS HfC coating consists of two layers of HfC/SiC/Carbon composites and base material, and exposure to 2000 degrees Celsius oxidizes the HfC layer and SiC layer to form the HfO2 layer and SiO2 layer. This figure shows that the upper HfO2 layer is damaged due to oxidation and volatilization of SiO2 in SiC layer. The elemental distribution through the EDS analysis below shows that HfSiO4 is included in the HfO2 layer when Si is also present in the HfO2 layer.ASCT 2021; 30(1): 21-24
Articles
< PreviousApplied Science and Convergence Technology 2021; 30(1): 1~40Next >
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Review of Brush Painting for Cost-efficient Paintable Electronics
Gye-Won Kim , Yong Jun Kim , and Han-Ki Kim aDepartment of Fine Arts, Sungkyunkwan University, Seoul 03063, Republic of Korea
bSchool of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea ASCT 2021; 30(1): 1-5 Keywords : Brush painting, Paintable electronics, Interconnectors, Electrodes,Visual art works -
On-Chip Nanoscale Light Source Based on Quantum Tunneling: Enabling Ultrafast Quantum Device and Sensing Applications
Jihye Lee and Jong-Souk Yeo aSchool of Integrated Technology, Yonsei University, Incheon 21983, Republic of Korea
bYonsei Institute of Convergence Technology, Yonsei University, Incheon 21983, Republic of Korea ASCT 2021; 30(1): 6-13 Keywords : Light source, Quantum electron tunneling, On-chip quantum devices, Biosensors, Chemical sensors -
Review of the Fundamental Principles and Performances on Lminescent Solar Concentrators
Kukhyun Jo and Hyo Jung Kim School of Chemical Engineering, Pusan National University, Busan 46241, Republic of Korea ASCT 2021; 30(1): 14-20 Keywords : Luminescent solar concentrator, Solar energy, Total internal reflection, Luminescent materials -
Hafnium Carbide Coatings Deposited by Suspension Vacuum Plasma Spraying for Ultra-High-Temperature Oxidation Barrier on Carbon Composites
Yeon Woo Yoo , Uk Hee Nam , Yeontae Kim , Hyung Ik Lee , Jong Kyoo Park , and Eungsun Byon aExtreme Environmental Coatings Department, Surface Technology Division, Korea Institute of Materials Science, Changwon 51508, Republic of Korea
bThe 4th R&D Institute, Agency for Defense Development, Daejeon 34186, Republic of Korea ASCT 2021; 30(1): 21-24 Keywords : Hafnium carbide, Vacuum plasma spraying, Suspension plasma spraying, Ultra-high-temperature oxidation -
Changes in the Electronic Structure of Tetra-Tert-Butyl Copper Phthalocyanine Film by Ultraviolet-Ozone Treatment
Wonsik Kim , Seungsun Choi , Woojin Shin , Jaewon Oh , Mee-Yi Ryu , and Hyunbok Lee∗ Department of Physics and Institute for Accelerator Science, Kangwon National University, Chuncheon 24341, Republic of Korea ASCT 2021; 30(1): 25-28 Keywords : X-ray photoelectron spectroscopy, Tetra-tert-butyl copper phthalocyanine, Ultraviolet-ozone treatment, Oxidation, UV-vis absorption spectroscopy -
Intensity and Uniformity Enhancement of Dielectric Barrier Discharge by Using Silver-Coated Electrode
Sang-Min Lee and Jun Choi aSchool of Electrical Engineering, University of Ulsan, Ulsan 44610, Republic of Korea
bAdvanced Forming Process R&D Group, Korea Institute of Industrial Technology, Ulsan 44413, Republic of Korea ASCT 2021; 30(1): 29-33 Keywords : Dielectric barrier discharge, Image processing, Intensity, Silver mirror reaction, Uniformity -
Structure and Photoluminescence of Optically Transparent Y2O3:Eu Thin Films Prepared on Sapphire Substrates by RF Magnetron Sputtering
Jin Yeong Jeong and Joo Han Kim Department of Advanced Materials Engineering, Chungbuk National University, Cheongju 28644, Republic of Korea ASCT 2021; 30(1): 34-37 Keywords : Radio frequency magnetron sputtering, Thin films, Sapphire, Annealing, X-ray diffraction -
Improved Efficiency of Ternary-Blended Films in Organic Solar Cell
Eunhee Lim Department of Chemistry, Kyonggi University, Suwon 16227, Republic of Korea ASCT 2021; 30(1): 38-40 Keywords : Organic solar cell, Organic photovoltaic cell, Ternary cell
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