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Enhanced and Tunable Visible-Light and Near-Infrared Transmittance of VO_(2)/ATO Composite Coatings for Smart Windows

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Journal of Wuhan University of Technology(materials Science) 2025年第3期40卷 627-634页

作者： HAN Tao YAN Yuqing WANG Yanhang YANG Penghui LI Xianzi ZHANG Rui ZU Chengkui Building Material Industrial Key Laboratory for Special Glass Preparation and Processing China Building Materials AcademyBeijing 100024China School of Chemical Safety North China Institute of Science and TechnologySanhe 065201China

We synthesized tungsten-doped vanadium dioxide(W-VO_(2))particles via a one-step hydrothermal method,followed by their integration with antimony-doped tin oxide(ATO)nanoparticles to formulate a composite ***,the VO_(2)/ATO composite coating was fabricated through a spin-coating *** impact of varying W-VO_(2) content and coating thickness on the performance of the composite coatings was systematically investigated by employing X-ray diffraction,particle size distribution analysis,spectrometry,and other pertinent test *** findings revealed that an escalation in both W-VO_(2) content and coating thickness retained high transmittance in the near-infrared band at lower ***,as the temperature increased,a notable reduction in transmittance in the near-infrared band was observed,alongside a slight decrease in transmittance within the visible ***,when the W-VO_(2) content reached 5%and the coating thickness was 1253 nm,the transmittance of the composite coating surpassed 80%.Furthermore,the heat insulation effect achieved a remarkable 10.0℃***,the synthesized composite coating demonstrates significant potential for smart glass applications,particularly in the realm of heat-insulating glass.

关键词： VO_(2) ATO composite coating transmittance thermal insulation performance

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Effect of Physical Tempering on Mechanical Properties of Aluminosilicate glass

SSRN

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SSRN 2023年

作者： Yang, Penghui Wang, Yanhang Li, Xianzi Han, Tao Shi, Xiaofei Building Material Industrial Key Laboratory for Special Glass Preparation and Processing China Building Materials Academy Beijing100024 China

The research on the influencing factors of physical tempering of glass is an important basis for further exploration of toughening mechanism and development of new toughened *** was found that the tempering strength was not only related to the intrinsic parameters of the material,but also related to the process *** the intrinsic parameters of glass materials,the elastic modulus and expansion coefficient had a positive linear relationship with the tempered *** the expansion coefficient was(85±1)GPa,the bending strength of tempered glass with high elastic modulus was 2.4times higher than that of annealed *** the elastic modulus was(50±2)×10-7/K,the bending strength of tempered glass with high expansion coefficient increased by 2.7times. After optimizing the tempering process of glass with elastic modulus of 85GPa and liner expansion coefficient of 48.2×10-7/K,the bending strength was improved by 1.5times at the *** the meantime,there was a positive linear relationship between the surface compressive stress and the tempered strength. © 2023, The Authors. All rights reserved.

关键词： Elastic moduli

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Viscosity-temperature characteristics and application of high borosilicate glass 6th

Viscosity-temperature characteristics and application of hig...

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6th International Conference on material Science and Engineering, ICMSE 2019

作者： Wang, Yanhang Han, Tao He, Kun Zu, Chengkui Building Material Industrial Key Laboratory for Special Glass Preparation and Processing China Building Materials Academy Beijing100024 China

ISBN: (纸本)9783035716092

Viscosity-temperature characteristics of high borosilicate glass were investigated in detail by means of rotor viscometer and dilatometer. The neck-down deformation process of glass tube was simulated by Polyflow software, and the simulation was verified by the secondary drawing of glass perform. The results showed that the high temperature viscosity of borosilicate glass is higher compared to that of ordinary optical glass. In the high temperature stage, the fitting curves of VFT, AV, AG and MYEGA models are all in good agreement with the tested curve. However, in the low temperature stage, only viscosity fitted by VFT model is close to the tested value. Based on Navier-Stokes equation, a mathematical model of neck-down deformation of glass tube during secondary drawing is established. It is found that viscosity is the key material intrinsic factor affecting neck-down process of glass tube. The distribution of inner and outer diameters of glass tube along the drawing direction is simulated and analyzed under different feeding and drawing rates. The deviation between the steady-state dimension simulated and that actually drawn is only ±0.06 mm. © 2020 Trans Tech Publications Ltd, Switzerland.

关键词： Viscosity

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Effect of Na+ Ions on the Mechanical Properties of Lithium Aluminosilicate glass

SSRN

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SSRN 2022年

作者： Wang, Yanhang Liu, Lei Liu, Min Li, Xianzi Zhang, Zhenyuan Liu, Jiayu Shao, Xianying Hu, Yuebo Building Material Industrial Key Laboratory for Special Glass Preparation and Processing China Building Materials Academy Beijing100024 China School of Materials Science and Engineering Qilu University of Technology Shandong Academy of Sciences Jinan250353 China Taishan Fiberglass Inc. Taian27100 China

A series of aluminosilicate glasses composed of 70SiO2-10Al2O3 -5K2O-15Li2O-xNaCl (x = 0.5,1.5,2.5,3.5 and 4.5wt.%) were successfully prepared by melt quenching method. The mechanical properties of aluminosilicate glasses with different NaCl doping contents were determined by Vickers hardness. With the addition of NaCl from 0.5wt.% to 3.5wt.%, the glass density and hardness decreased. Interestingly, Vickers hardness of the glass increased when the NaCl content increased by 4.5wt%. Raman test results show that the increase of NBO/T in the glass, that is, the decrease of the degree of polymerization of the glass network due to the breaking of Si-O-Si bonds. Since the Si-O-Si covalent bond is the strongest bond in the silicate glass,the glass structure tends to be loose, and the density and Vickers hardness decrease. Thus,we attribute the hardness increasing at 4.5wt% NaCl addition to the follow: Na + enters the network pores and plays the role of network modification oxides. © 2022, The Authors. All rights reserved.

关键词： Sodium chloride

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Research on low-temperature glass sealing of 50%Si/Al shell 21

Research on low-temperature glass sealing of 50%Si/Al shell

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21st International Conference on Electronic Packaging Technology, ICEPT 2020

作者： Hao, Xinfeng Niu, Jitai Xu, Bo Wang, Zhenjiang Nanjing Research Institute of Electronics Technology Quality Department Nanjing210039 China Harbin Institute of Technology State Key Laboratory of Advanced Welding and Joining Herbin150001 China Key Laboratory of Special Glass Preparation and Processing of Building Materials Industry China Building Material Academy Beijing100024 China Henan Polytechnic University School of Materials Science and Engineering Jiaozuo454003 China

ISBN: (纸本)9781728168265

In view of the problems in the brazing process of the Radio frequency (RF) microwave channel in Si/Al packaging shell, the technical requirement of low-temperature glass sealing of Si/Al packaging shell was analyzed. The feasibility of the glass material with low sealing temperature, low expansion coefficient and low dielectric property was proved by theory and experiment. The single glass material could not meet the requirement of low temperature sealing and radio frequency transmission. Therefore, the composite glass insulator of DM305 high-temperature glass column with low-temperature glass ring wrapped was designed. The low sealing temperature, low expansion coefficient and low dielectric constant can be obtained by this composite structure. The sealing structure is compatible with the plating and packaging process of 50%Si/Al Shell, which is suitable for engineering application. © 2020 IEEE.

关键词： Temperature

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Research on low-temperature glass sealing of 50%Si/Al shell

Research on low-temperature glass sealing of 50%Si/Al shell

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International Conference on (ICEPT) Electronic Packaging Technology

作者： Xinfeng Hao Jitai Niu Bo Xu Zhenjiang Wang Quality Department Nanjing Research Institute of Electronics Technology Nanjing China State key laboratory of advanced welding and joining Harbin Institute of Technology Herbin China China Building Material Academy Key Laboratory of Special Glass Preparation and Processing of Building Materials Industry Beijing China School of Materials Science and Engineering Henan Polytechnic University Jiaozuo China

ISBN: (数字)9781728168265

ISBN: (纸本)9781728168272

关键词： glass Packaging Radio frequency Temperature Reliability Metals Conductors

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