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Sodium Nitrate Passivation as a Novel Insulation Technology for Soft Magnetic Composites Article

Mi Yan, Qiming Chen, Dong Liu, Chen Wu, Jian Wang

Engineering 2023, Volume 20, Issue 1,   Pages 134-142 doi: 10.1016/j.eng.2022.01.016

Abstract:

 Sodium nitrate passivation has been developed as a new insulation technology for the productionUnder tuned passivation conditions, optimal performance with an effective permeability of 97.2 and a

Keywords： Soft magnetic composites     Surface passivation     Insulation technology     Growth mechanism     Magnetic performance    

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EFFECT OF EXOGENOUS ADDITIVES ON HEAVY METAL PASSIVATION AND NITROGEN RETENTION IN PIG MANURE COMPOSTING

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023487

Abstract:

● Research on heavy metal passivation and nitrogen emissions is necessary

Keywords： additives     composting     heavy metals passivation     nitrogen retention     pig manure    

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SiO2 passivation layer grown by liquid phase deposition for silicon solar cell application

Yanlin CHEN,Sihua ZHONG,Miao TAN,Wenzhong SHEN

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 52-59 doi: 10.1007/s11708-016-0429-3

Abstract: Surface passivation is one of the primary requirements for high efficient silicon solar cells.Though the current existed passivation techniques are effective, expensive equipments are required.Besides, it was revealed that both chemical passivation and field-effect passivation mechanisms playedcarrier lifetime and the surface recombination velocity of n-type and p-type silicon wafers.By utilizing the LPD SiO film as surface passivation layer, a 19.5%-efficient silicon solar cell on

Keywords： Si solar cell     passivation     SiO2     liquid phase deposition     carrier lifetime    

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Defect passivation on cast-mono crystalline screen-printed cells

Alison WENHAM,Lihui SONG,Malcolm ABBOTT,Iskra ZAFIROVSKA,Sisi WANG,Brett HALLAM,Catherine CHAN,Allen BARNETT,Stuart WENHAM

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 60-66 doi: 10.1007/s11708-016-0443-5

Abstract: similar wafers that concluded increased H or H from laser illumination was responsible for the further passivation

Keywords： silicon solar cell     dislocation     cast-mono     laser     hydrogen passivation    

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Plasma enhanced chemical vapor deposition of excellent a-Si:H passivation layers for a-Si:H/c-Si heterojunction

Lei ZHAO,Wenbin ZHANG,Jingwei CHEN,Hongwei DIAO,Qi WANG,Wenjing WANG

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 85-91 doi: 10.1007/s11708-016-0437-3

Abstract: The intrinsic a-Si:H passivation layer inserted between the doped a-Si:H layer and the c-Si substrateThe passivation performance of the a-Si:H layer is strongly dependent on its microstructure.The corresponding passivation performance on c-Si was investigated by minority carrier lifetime measurementThe correlation between the microstructure and the passivation performance was revealed.According to the above findings, the a-Si:H passivation performance was optimized more elaborately.

Keywords： PECVD     high pressure and high power     a-Si:H microstructure     passivation     heterojunction solar cell    

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High frequency group pulse electrochemical machining

WU Gaoyang, ZHANG Zhijing, ZHANG Weimin, TANG Xinglun

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 293-296 doi: 10.1007/s11465-007-0051-5

Abstract: HGPECM can greatly improve the characteristics of the inter-electrode gap flow field, reduce electrode passivation

Keywords： HGPECM     process     machining quality     passivation     inter-electrode    

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Improved Oxygen Evolution Kinetics and Surface States Passivation of Ni-Bi Co-Catalyst for Letter

Ke Dang,Tuo Wang,Chengcheng Li,Jijie Zhang,Shanshan Liu,Jinlong Gong

Engineering 2017, Volume 3, Issue 3,   Pages 285-289 doi: 10.1016/J.ENG.2017.03.005

Abstract:

This paper describes the combinational surface kinetics enhancement and surface states passivation

Keywords： Nickel-borate     Hematite     Oxygen evolution reaction     Co-catalyst    

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Application of electrochemical depassivation in PRB systems to recovery Fe

Xin LU, Miao LI, Hao DENG, Pengfei LIN, Mark R. MATSUMOTO, Xiang LIU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0843-0

Abstract: Utilizing electrochemical depassivation to recovery Fe activity was effective, and minerals were cleaned layer by layer, with no ions secondary contamination, and no transformation from Cr(III) to Cr(VI). Electrochemical depassivation process under various electrolysis conditions was revealed. Electro-PRB configuration for caisson excavation construction technique was designed. Permeable reactive barriers (PRBs) show remarkable Cr(VI) removal performance. However, the diminished removal rate because of mineral fouling over time is the bottleneck for application of PRBs. The present study demonstrated that electrochemical depassivation was effective for recovering the Fe reactivity, and minerals can be cleaned layer by layer with no secondary ion contamination and no transformation from Cr(III) to Cr(VI). The removal recovery rate increased with increasing electrolysis voltage before reaching the optimal electrolysis voltage, and then decreased as the electrolysis voltage further increased. The recovery effect at electrolysis voltages of 5, 10, and 15 V show the same trend as a function of electrolysis time, where recovery rate first increased and then decreased after reaching the optimal electrolysis time. The Cr(VI) removal rate significantly decreased with increasing electrolysis distance. Furthermore, Fe brush meshes electrode, Fe fillings, and polyvinyl chloride (PVC) meshes separators were combined to create an Electro-PRB configuration for the caisson excavation construction technique, which lays the foundation for establishment of promising Electro-PRB systems to treat Cr(VI)-contaminated groundwater.

Keywords： PRB     Cr(VI)     Fe     Passivation     Electrochemical depassivation    

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Impact of thermal processes on multi-crystalline silicon

Moonyong KIM,Phillip HAMER,Hongzhao LI,David PAYNE,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 32-41 doi: 10.1007/s11708-016-0427-5

Abstract: Thermal oxidations could greatly improve surface passivation in the intra-grain regions, with the highertemperatures yielding the highest quality surface passivation.effectiveness of gettering, or due to the presence of a thicker oxide layer, which may interrupt hydrogen passivation

Keywords： gettering     grain boundaries     hydrogen     impurities     oxidation     passivation     solar cell    

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Cell surface protein engineering for high-performance whole-cell catalysts

Hajime Nakatani,Katsutoshi Hori

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 1,   Pages 46-57 doi: 10.1007/s11705-017-1609-3

Abstract: Cell surface protein engineering facilitated by accumulation of information on genome and protein structureinvolves heterologous production and modification of cell surface proteins using genetic engineeringIn this field, cell surface display is a major technology by exposing target proteins, such as enzymes, on the cell surface using a carrier protein.The target proteins are fused to the carrier proteins that transport and tether them to the cell surface

Keywords： cell surface engineering     surface display     whole-cell catalysts     bioprocess    

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An Exploration of Surface Integrity Remanufacturing for Aeroengine Components

Qiao Xiang,Yong He,Ting-hong Hou

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 107-114 doi: 10.15302/J-FEM-2016025

Abstract: Surface integrity is the major factor impacting on the operation quality, service life and reliabilityThe surface integrity of aeroengine component is damaged by the failures such as crack, deformation,It adopts advanced remanufacturing technologies to restore or improve the surface integrity and regenerateThis paper firstly puts forward the concept, namely surface integrity remanufacturing for aeroengineThe key remanufacturing technologies have been developed to repair the components with surface damages

Keywords： aeroengine component     surface integrity     remanufacturing     surface integrity remanufacturing    

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Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 299-319 doi: 10.1007/s11465-019-0535-0

Abstract: Laser polishing is a technology of smoothening the surface of various materials with highly intense laserWhen these beams impact on the material surface to be polished, the surface starts to be melted due tomelted material is then relocated from the ‘peaks to valleys’ under the multidirectional action of surfaceparameters such as beam intensity, energy density, spot diameter, and feed rate, different rates of surfacerelied for smoothening of initial topography of the surfaces irrespective of the complexity of the surface

Keywords： laser polishing     surface roughness     process parameters     mechanism    

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Tribological study on the surface modification of metal-on-polymer bioimplants

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0682-6

Abstract: The relationship between surface roughness and coefficient of friction (COF) under dry and lubricatedResults show that under dry test, friction coefficient is not reduced all the time with a decrease in surfaceUnder wet test, COF always decreases with reduction in surface roughness.by decreasing friction force and mitigating surface deterioration.By obtaining the optimal surface roughness and applying texturing technology, the tribological performance

Keywords： artificial joints     surface roughness     friction     surface texturing    

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Development of surface reconstruction algorithms for optical interferometric measurement

Dongxu WU, Fengzhou FANG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 1-31 doi: 10.1007/s11465-020-0602-6

Abstract: Optical interferometry is a powerful tool for measuring and characterizing areal surface topography inThis paper provides an in-depth perspective of surface topography reconstruction for optical interferometricThis paper also presents the new challenges that optical interferometry techniques are facing in surface

Keywords： surface topography     measurement     optical interferometry     coherence envelope     phase-shifting algorithm    

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Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 606-624 doi: 10.1007/s11709-023-0925-6

Abstract: A novel cambered surface steel tube damper (CSTD) with a cambered surface steel tube and two concave

Keywords： cambered surface steel tube damper     energy dissipation capacity     finite element model     hysteretic performance    

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Title Author Date Type Operation

Sodium Nitrate Passivation as a Novel Insulation Technology for Soft Magnetic Composites

Mi Yan, Qiming Chen, Dong Liu, Chen Wu, Jian Wang

Journal Article

EFFECT OF EXOGENOUS ADDITIVES ON HEAVY METAL PASSIVATION AND NITROGEN RETENTION IN PIG MANURE COMPOSTING

Journal Article

SiO2 passivation layer grown by liquid phase deposition for silicon solar cell application

Yanlin CHEN,Sihua ZHONG,Miao TAN,Wenzhong SHEN

Journal Article

Defect passivation on cast-mono crystalline screen-printed cells

Alison WENHAM,Lihui SONG,Malcolm ABBOTT,Iskra ZAFIROVSKA,Sisi WANG,Brett HALLAM,Catherine CHAN,Allen BARNETT,Stuart WENHAM

Journal Article

Plasma enhanced chemical vapor deposition of excellent a-Si:H passivation layers for a-Si:H/c-Si heterojunction

Lei ZHAO,Wenbin ZHANG,Jingwei CHEN,Hongwei DIAO,Qi WANG,Wenjing WANG

Journal Article

High frequency group pulse electrochemical machining

WU Gaoyang, ZHANG Zhijing, ZHANG Weimin, TANG Xinglun

Journal Article

Improved Oxygen Evolution Kinetics and Surface States Passivation of Ni-Bi Co-Catalyst for

Ke Dang,Tuo Wang,Chengcheng Li,Jijie Zhang,Shanshan Liu,Jinlong Gong

Journal Article

Application of electrochemical depassivation in PRB systems to recovery Fe

Xin LU, Miao LI, Hao DENG, Pengfei LIN, Mark R. MATSUMOTO, Xiang LIU

Journal Article

Impact of thermal processes on multi-crystalline silicon

Moonyong KIM,Phillip HAMER,Hongzhao LI,David PAYNE,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Journal Article

Cell surface protein engineering for high-performance whole-cell catalysts

Hajime Nakatani,Katsutoshi Hori

Journal Article

An Exploration of Surface Integrity Remanufacturing for Aeroengine Components

Qiao Xiang,Yong He,Ting-hong Hou

Journal Article

Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Journal Article

Tribological study on the surface modification of metal-on-polymer bioimplants

Journal Article

Development of surface reconstruction algorithms for optical interferometric measurement

Dongxu WU, Fengzhou FANG

Journal Article

Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research

Journal Article