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Band-gap tunable (Ga_xIn₁₋_x)₂O₃ layer Research Articles

Fabi Zhang, Jinyu Sun, Haiou Li, Juan Zhou, Rong Wang, Tangyou Sun, Tao Fu, Gongli Xiao, Qi Li, Xingpeng Liu, Xiuyun Zhang, Daoyou Guo, Xianghu Wang, Zujun Qin,zhangfabi@outlook.com,qinzj@guet.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 10, Pages 1370-1378 doi: 10.1631/FITEE.2000330

Abstract: Multicomponent oxide (GaIn)O films are prepared on (0001) sapphire substrates to realize a tunable band-gapproperties and band structure evolution over the whole range of compositions in ternary compounds (GaIn)OThe X-ray diffraction spectra clearly indicate that (GaIn)O films with Ga content varying from 0.11 toexperimental results lay a foundation for the application of transparent conductive compound (GaIn)O

Keywords： (GaxIn1−x)2O3薄膜；带隙可调谐；磁控溅射

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Sb₂Te₃ topological insulator for 52 nm wideband tunable Yb-doped passively Q-switched Research

Tao Wang, Qiang Yu, Kun Guo, Xinyao Shi, Xuefen Kan, Yijun Xu, Jian Wu, Kai Zhang, Pu Zhou,wujian15203@163.com,kzhang2015@sinano.ac.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3, Pages 287-436 doi: 10.1631/FITEE.2000577

Abstract: has the advantage of broadband saturable absorption from the visible to the infrared bands. Herein, the two-dimensional material saturable absorber (SA) of the family was first applied experimentally in a wideband tunable passively Q-switched Yb-doped ﬁber laser. High-quality crystals were synthesized by the flux zone method. The SA with fewer layers was further prepared via a modified mechanical exfoliation procedure. Meanwhile, stable wavelength-tunable passive Q-switching pulse operation was obtained in a Yb-doped ﬁber ring cavity based on the SA, where the central wavelength can be continuously tuned from 1040.89 to 1092.85 nm. Results suggest that has wideband saturable absorption properties, and that the tunable pulse laser can provide a convenient and simple source for practical applications.

Keywords：拓扑绝缘体；Sb2Te3；光纤激光；被动调Q激光；波长可调谐激光

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Spray Preparation, Microstructure and Properties of Al₂O₃-M_xO Hard -

Wang Biao,Wang Yudong,Li Huiling,Zhang Zihua

Strategic Study of CAE 2002, Volume 4, Issue 9, Pages 75-80

Abstract: carbon steel substrate, base coating of nickel-coated aluminium and intermediate coating of 50% Al₂O₃ + 50% Ni were prepared by means of oxyacetylene spray, and final coating of Al₂O₃ ～ M_xO_y was prepared by means of plasma spray.60% (mass) sulphuric acid with 60 % concentration, and 40% (mass) phosphoric ore powder, the Al₂O₃ ～ M_xO_y coating resistance to corrosion and wear, is 7.46 times

Keywords： Al₂O₃-M_xO_y coating plasma resistance to corrosion resistance

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Evaluation of H₂ on the Evolution Mechanism of NO_x Storage and Reductionover Pt–Ba–Ce/γ-Al₂O₃ Catalysts Article

Pan Wang, Jing Yi, Chuan Sun, Peng Luo, Lili Lei

Engineering 2019, Volume 5, Issue 3, Pages 568-575 doi: 10.1016/j.eng.2019.02.005

Abstract:

In this investigation, Pt–Ba–Ce/γ-Al₂O₃ catalysts were preparedThe physical and chemical properties of the Pt–Ba–Ce/γ-Al₂O₃/sub>, CeO₂, and BaCO₃, whose peaks were observed in X-ray diffraction (XRD) spectra, dispersed well on the γ-Al2O3, as shown by transmission electron microscope (TEM), andthat the difference between Ce³⁺ and Ce⁴⁺, as detected by X-ray photoelectron

Keywords： Pt–Ba–Ce/γ-Al₂O₃ catalysts Physicochemical properties NO_x storageand reduction NO_x emission H₂ reductant

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Transparent Thermally Tunable Microwave Absorber Prototype Based on Patterned VO₂ Film Article

Zhengang Lu, Yilei Zhang, Heyan Wang, Chao Xia, Yunfei Liu, Shuliang Dou, Yao Li, Jiubin Tan

Engineering 2023, Volume 29, Issue 10, Pages 198-206 doi: 10.1016/j.eng.2022.10.005

Abstract: and thermally tunable microwave absorber is proposed, based on a patterned vanadium dioxide (VO₂₂ absorber has a highAdjusting only the patterned VO₂ film duty cycle can change the temperature of near-unityOur VO₂ absorber has a simple composition, a high optical transmittance, a thermally tunable

Keywords： Tunable microwave absorber VO₂ film Optical transparent Near unity absorption Large modulation

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Rh₂O₃/hexagonal CePO₄ nanocatalysts for N₂O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials.O than the Rh O supported on CePO nanorods., H O or O /H O) on the N O decomposition was also investigated.characterized by N adsorption-desorption, inductively coupled plasma optical emission spectroscopy, X-raydiffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-programmed

Keywords： Rh₂O₃ CePO₄ N₂O decomposition

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On the monolayer dispersion behavior of Co₃O₄ on HZSM-5 support: designing applicable

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1741-1754 doi: 10.1007/s11705-023-2332-x

Abstract: Based on monolayer dispersion theory, Co₃O₄/ZSM-5 catalysts with different loadingsIt has been revealed that the quantities of surface active oxygen (O₂^–) and acidsites are crucial for the reaction, which can adsorb and activate NO_x and NH_{3capacity, possesses the most abundant active O₂^– species and acidic sites, therebycapacity amount of Co₃O₄ onto HZSM-5 support.}

Keywords： Co₃O₄/ZSM-5 NO_x-SCR by NH₃ monolayer dispersionthreshold effect surface acid sites surface active O₂^– anions

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Effects of Pd doping on N

Mingxin Dong, Jun Wang, Jinxin Zhu, Jianqiang Wang, Wulin Wang, Meiqing Shen

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0976-9

Abstract: This present work investigated the effects of Pd doping on N O formation over Pt/BaO/Al O catalyst.Three types of catalysts, Pt/BaO/Al O , Pt/Pd mechanical mixing catalyst (Pt/BaO/Al O +Pd/Al O ) andCompared with Pt/BaO/Al O , (Pt/BaO/Al O +Pd/Al O ) produced less N O and more NH during NO storageand reduction process, while an opposite trend was found over (Pt-Pd/BaO/Al O +Al O ).Most of N O formed over (Pt-Pd/BaO/Al O +Al O ) was originated from Pd/BaO/Al O component.

Keywords： NO_x storage reduction Pt/BaO/Al₂O₃ Pd doping N₂O formation

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Brazing of ceramic-to-ceramic and ceramic-to-metal joints in air

Kirsten BOBZIN, Thomas SCHLAEFER, Lidong ZHAO, Nils KOPP, Arne SCHLEGEL

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2, Pages 125-129 doi: 10.1007/s11465-010-0007-z

Abstract: used to produce brazed joints with the SOFC materials ceramic yttria stabilized zirconia and steel X1CrTiLa22

Keywords： reactive air brazing (RAB) X1CrTiLa22 Al₂O₃ yttria stabilized zirconia (YSZ) solid

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Electrically tunable liquid crystal coplanar waveguide stepped-impedance resonator Research Articles

Xingye Fan, Ruozhou Li, Jing Yan, Yuming Fang, Ying Yu,jing.yan@njupt.edu.cn,ying_yu_001@163.com

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 9, Pages 1270-1276 doi: 10.1631/FITEE.2000278

Abstract: A tunable stepped-impedance resonator using is demonstrated. Two resonant frequencies at 3.367 and 7.198 GHz are realized and can be continuously tuned by external applied voltages. Continuous tunable ranges of 52 and 210 MHz have been achieved at a particularly low driving voltage of 14 V, which shows good agreement with the simulation results. The voltage-induced hysteresis phenomenon is also investigated. This device also has a low insertion loss of −2.9 and −4 dB for the two resonant frequencies and the return losses are less than −21.5 dB. This work provides a new protocol to realize a tunable frequency for communication systems.

Keywords：可调阶梯阻抗谐振器；液晶；共面波导

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Tunable In-Plane Anisotropy in Amorphous Sm–Co Films Grown on (011)- Oriented Single-Crystal Substrates Article

Wenhui Liang, Houbo Zhou, Jiefu Xiong, Fengxia Hu, Jia Li, Jian Zhang, Jing Wang, Jirong Sun, Baogen Shen

Engineering 2020, Volume 6, Issue 2, Pages 158-163 doi: 10.1016/j.eng.2019.11.010

Abstract: A k_A value as high as about 3.3 × 10⁴ J·m⁻³ was obtained in the amorphous Sm–Co film grown on a LaAlO₃(011) substrate.

Keywords： Amorphous Sm–Co films In-plane uniaxial anisotropy Sputtering

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The stabilization effect of Al₂O₃ on unconventional Pb/SiO₂ catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1423-1429 doi: 10.1007/s11705-023-2315-y

Abstract: To enhance the stability, the traditional carrier Al₂O₃ with a small amount, wasintroduced into Pb/SiO₂ catalyst in this study.It has been proved that Al₂O₃ can inhibit the reduction of PbO, and weaken theAs a result, 3Al15Pb/SiO₂ catalyst exhibits a much higher stability up to more than 150 h./sub>O₃ addition was also proposed.

Keywords： Pb/SiO₂ Al₂O₃ propane dehydrogenation propene stability

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Development of space-based diffractive telescopes Review Article

Wei Zhao, Xin Wang, Hua Liu, Zi-feng Lu, Zhen-wu Lu,wangxin971241@163.com,liuhua_rain@aliyun.com

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 6, Pages 809-962 doi: 10.1631/FITEE.1900529

Abstract: the substrates have two important characteristics, ultra-light mass (surface mass density < 0.1 kg/m2)

Keywords：薄膜衍射光学元件；衍射望远系统；超大口径

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An adjustable anti-resonance frequency controller for a dual-stage actuation semi-active vibration isolation system Research Articles

Bo Zhao, Weijia Shi, Bingquan Wang, Jiubin Tan,shiweijia@hit.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 10, Pages 1390-1401 doi: 10.1631/FITEE.2000373

Abstract: In the semiconductor manufacturing industry, the dynamic model of a controlled object is usually obtained from a frequency sweeping method before motion control. However, the existing isolators cannot properly isolate the disturbance of the inertial force on the platform base during frequency sweeping (the frequency is between 0 Hz and the natural frequency). In this paper, an for a system (DSA-SAVIS) is proposed. This system has a significant anti-resonance characteristic; that is, the vibration amplitude can drop to nearly zero at a particular frequency, which is called the anti-resonance frequency. The proposed controller is designed to add an adjustable anti-resonance frequency to fully use this unique anti-resonance characteristic. Experimental results show that the closed-loop transmissibility is less than −15 dB from 0 Hz to the initial anti-resonance frequency. Furthermore, it is less than −30 dB around an added anti-resonance frequency which can be adjusted from 0 Hz to the initial anti-resonance frequency by changing the parameters of the proposed controller. With the proposed controller, the disturbance amplitude of the payload decays from 4 to 0.5 mm/s with a reduction of 87.5% for the impulse disturbance applied to the platform base. Simultaneously, the system can adjust the anti-resonance frequency point in real time by tracking the frequency sweeping disturbances, and a good vibration isolation performance is achieved. This indicates that the DSA-SAVIS and the proposed controller can be applied in the guarantee of an ultra-low vibration environment, especially at frequency sweeping in the semiconductor manufacturing industry.

Keywords：半主动隔振；双级驱动；动态吸振；可调反共振频率控制器

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Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr₂O₃ Systemwith Al₂O₃ and Cr₂O₃ Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Strategic Study of CAE 2004, Volume 6, Issue 6, Pages 63-67

Abstract:

The thermodynamic calculation and analysis of combustion synthesis reaction of Al - Cr2O3 system with AI2O3and Cr2O3 diluents were conducted, and the effects of reactionstarting temperature TO, diluents AI2O3 and Cr2O3 on the adiabatic combustion temperature

Keywords： cermet combustion synthesis Al - Cr₂O₃ system thermodynamics reaction model

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Title Author Date Type Operation

Band-gap tunable (Ga_xIn₁₋_x)₂O₃ layer

Fabi Zhang, Jinyu Sun, Haiou Li, Juan Zhou, Rong Wang, Tangyou Sun, Tao Fu, Gongli Xiao, Qi Li, Xingpeng Liu, Xiuyun Zhang, Daoyou Guo, Xianghu Wang, Zujun Qin,zhangfabi@outlook.com,qinzj@guet.edu.cn

Journal Article

Sb₂Te₃ topological insulator for 52 nm wideband tunable Yb-doped passively Q-switched

Tao Wang, Qiang Yu, Kun Guo, Xinyao Shi, Xuefen Kan, Yijun Xu, Jian Wu, Kai Zhang, Pu Zhou,wujian15203@163.com,kzhang2015@sinano.ac.cn

Journal Article

Spray Preparation, Microstructure and Properties of Al₂O₃-M_xO Hard -

Wang Biao,Wang Yudong,Li Huiling,Zhang Zihua

Journal Article

Evaluation of H₂ on the Evolution Mechanism of NO_x Storage and Reductionover Pt–Ba–Ce/γ-Al₂O₃ Catalysts

Pan Wang, Jing Yi, Chuan Sun, Peng Luo, Lili Lei

Journal Article

Transparent Thermally Tunable Microwave Absorber Prototype Based on Patterned VO₂ Film

Zhengang Lu, Yilei Zhang, Heyan Wang, Chao Xia, Yunfei Liu, Shuliang Dou, Yao Li, Jiubin Tan

Journal Article

Rh₂O₃/hexagonal CePO₄ nanocatalysts for N₂O decomposition

Huan Liu, Zhen Ma

Journal Article

On the monolayer dispersion behavior of Co₃O₄ on HZSM-5 support: designing applicable

Journal Article

Effects of Pd doping on N

Mingxin Dong, Jun Wang, Jinxin Zhu, Jianqiang Wang, Wulin Wang, Meiqing Shen

Journal Article

Brazing of ceramic-to-ceramic and ceramic-to-metal joints in air

Kirsten BOBZIN, Thomas SCHLAEFER, Lidong ZHAO, Nils KOPP, Arne SCHLEGEL

Journal Article

Electrically tunable liquid crystal coplanar waveguide stepped-impedance resonator

Xingye Fan, Ruozhou Li, Jing Yan, Yuming Fang, Ying Yu,jing.yan@njupt.edu.cn,ying_yu_001@163.com

Journal Article

Tunable In-Plane Anisotropy in Amorphous Sm–Co Films Grown on (011)- Oriented Single-Crystal Substrates

Wenhui Liang, Houbo Zhou, Jiefu Xiong, Fengxia Hu, Jia Li, Jian Zhang, Jing Wang, Jirong Sun, Baogen Shen

Journal Article

The stabilization effect of Al₂O₃ on unconventional Pb/SiO₂ catalyst

Journal Article

Development of space-based diffractive telescopes

Wei Zhao, Xin Wang, Hua Liu, Zi-feng Lu, Zhen-wu Lu,wangxin971241@163.com,liuhua_rain@aliyun.com

Journal Article

An adjustable anti-resonance frequency controller for a dual-stage actuation semi-active vibration isolation system

Bo Zhao, Weijia Shi, Bingquan Wang, Jiubin Tan,shiweijia@hit.edu.cn

Journal Article

Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr₂O₃ Systemwith Al₂O₃ and Cr₂O₃ Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Journal Article

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