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| 1 | Air plasma-sprayed high-entropy (Y_(0.2)Yb_(0.2)Lu_(0.2)Eu_(0.2)Er_(0.2))_(3)Al_(5)O_(12) coating with high thermal protection performance显示文摘High-entropy rare-earth aluminate(Y_(0.2)Yb_(0.2)Lu_(0.2)Eu_(0.2)Er_(0.2))_(3)Al_(5)O_(12)(HE-RE_(3)Al_(5)O_(12))has been considered as a promising thermal protection coating(TPC)material based on its low thermal conductivity and close thermal expansion coefficient to that of Al2O3.However,such a coating has not been experimentally prepared,and its thermal protection performance has not been evaluated.To prove the feasibility of utilizing HE-RE_(3)Al_(5)O_(12) as a TPC,HE-RE_(3)Al_(5)O_(12) coating was deposited on a nickelbased superalloy for the first time using the atmospheric plasma spraying technique.The stability,surface,and cross-sectional morphologies,as well as the fracture surface of the HE-RE_(3)Al_(5)O_(12) coating were investigated,and the thermal shock resistance was evaluated using the oxyacetylene flame test.The results show that the HE-RE_(3)Al_(5)O_(12) coating can remain intact after 50 cycles at 1200℃ for 200 s,while the edge peeling phenomenon occurs after 10 cycles at 1400℃ for 200 s.This study clearly demonstrates that HE-RE_(3)Al_(5)O_(12) coating is effective for protecting the nickel-based superalloy,and the atmospheric plasma spraying is a suitable method for preparing this kind of coatings. | Kailun WANG Jinpeng ZHU Hailong WANG Kaijun YANG Yameng ZHU Yubin QING Zhuang MA Lihong GAO Yanbo LIU Sihao WEI Yongchun SHU Yanchun ZHOU Jilin HE | 2022 | Journal of Advanced Ceramics2022，11，10： | 2 |
| 2 | Determination of the Li/Nb Ratio in LiNbO3 Crystals Prepared by Vapor Transport Equilibration Method 显示文摘 | Chen Yunlin Zhang Wanlin Shu Yongchun Lou Cibo Kong Yongfa Huang Ziheng Xu Jingjun and Zhang Guangyin | 2003 | Optical Materials2003，23，12： | 1 |
| 3 | Association of polymorphisms of cytokine and TLR-2 genes with long-term immunity to hepatitis B in children vaccinated early in life显示文摘 | Yangyang Wang Peizhen Xu Dongmei Zhu Shu Zhang Yongchun Bi Yali Hu Yi-Hua Zhou | 2012 | Vaccine2012，，39： | 1 |
| 4 | MBE Growth of High Electron Mobility InP Epilayers显示文摘 | Shu Yongchun Yao Jianghong Pi Biao | 2005 | Chinese Journal of Semiconcluctors2005，36，8： | 1 |
| 5 | Study on the electrochemical behavior of Mg and Al ions in LiCl-KCl melt and preparation of Mg-Al alloy显示文摘The electrochemical behavior of Mg^(2+)and Al^(3+)in LiCl-KCl(mass 4:1)melt at 973 K was studied on a Mo electrode systematically by cyclic voltammetry,square wave voltammetry and chronopotentiometry.The results showed that the reductions of Mg^(2+)and Al^(3+)were reversible processes controlled by the rate of the mass transfer.When Mg^(2+)and Al^(3+)coexisted in LiCl-KCl melt,they had no significant effect on the reduction potential of each other.The equilibrium potentials of Mg^(2+)/Mg and Al^(3+)/Al were obtained by open circuit potential method.Their apparent standard potentials were also calculated in this system and the values were-2.52 V vs Cl_(2)/Cl^(−),-1.66 V vs Cl_(2)/Cl^(−),respectively.Correspondingly,the apparent Gibbs free energies of Mg^(2+)/Mg and Al^(3+)/Al were-485.71 kJ/mol^(-1),-480.78 kJ/mol^(-1).Finally,potentiostatic electrolysis was performed on a Mo electrode in LiCl-KCl-MgCl_(2)-AlCl_(3)(the mass ratio of MgCl_(2) to AlCl_(3) was 10:1)melt at different potentials.The components of the deposits were characterized by scanning electron microscope and energy dispersive spectroscopy.The study revealed that the content of Al in the deposit decreased as the overpotential increased and Al tended to segregate at the grain boundaries. | Shaolong Li Yusi Che Chenyao Li Yongchun Shu Jilin He Bin Yang Jianxun Song | 2022 | Journal of Magnesium and Alloys2022，10，3： | 1 |
| 6 | Atomic-resolution investigation of structural transformation caused by oxygen vacancy in La_(0.9)Sr_(0.1)TiO_(3+δ)titanate layer perovskite ceramics显示文摘Perovskite functional ceramics have been widely applied for thermal protection owing to their unique physical properties.However,formation of oxygen vacancies under external stimuli usually limits their performance in practical applications.Therefore,the mechanism of the effect of oxygen vacancy on the layer structure of perovskite La_(0.9)Sr_(0.1)TiO_(3+δ)was investigated by experiments and first-principles simulations.The experimental results showed that the lattice distortion occurred in oxygen-deficient environment to give a longer c-axis,along with a significant adjustment in the modes of A/B–O bond vibration,resulting in lower reflectivity.Advanced transmission electron microscopy studies revealed that oxygen vacancies induced localized atomic rearrangements via[TiO_(6)]layer movements to adapt to the lattice distortion.This eventually restructured a part of the layer interfaces by expanding the overlapping projection of atoms in the c-axial direction.The specific transformation process was described as a compendious process,while geometric phase analysis effectively clarified how oxygen vacancies can inhibit reflectivity on the layer structure.Thus,this study provides effective approaches for researching the effects of oxygen vacancy on the physical properties of orthorhombic layer perovskite structures,which may facilitate the development of perovskite-based functional devices. | Yang Zhao Yameng Zhu Jinpeng Zhu Hailong Wang Zhuang Ma Lihong Gao Yanbo Liu Kaijun Yang Yongchun Shu Jilin He | 2022 | Journal of Materials Science & Technology2022，，9： | 0 |
| 7 | PROCESS CHARACTERISTICS OF HoBa2Cu3O7-δ AND EFFECT OF MAGNETIC FIELD ON SUPERCONDUCTIVITY OF REBa2Cu3O7-δ (RE=Y,Ho)显示文摘PROCESSCHARACTERISTICSOFHoBa2Cu3O7-δANDEFFECTOFMAGNETICFIELDONSUPERCONDUCTIVITYOFREBa2Cu3O7-δ(RE=Y,Ho)￥Yi,Jianhong;Pen... | Yi, Jianhong Peng, Chaoqun Shu, Yongchun Lin, Caidong Xu, Runze | 1995 | 中国有色金属学会会刊:英文版1995，5，2： | 0 |
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