Journal of Electrochemical Science and Engineering最新文献_第10页

Elevated temperature erosion of abradable seal coating 耐磨损密封涂层高温侵蚀

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-08-11 DOI: 10.5599/jese.1388

B. Malvi, M. Roy

{"title":"Elevated temperature erosion of abradable seal coating","authors":"B. Malvi, M. Roy","doi":"10.5599/jese.1388","DOIUrl":"https://doi.org/10.5599/jese.1388","url":null,"abstract":"Abradable coatings are essentially sealing materials and are deposited by thermal spray techniques. The main function of these coatings is to control the clearance of the gas path of the gas turbine engines. The abradable coating prevents turbine blade damage by abrading itself when there is an offset or vibration during turbine operation. Since the coating is meant to abrade, the preferred coating material is relatively softer than the turbine blade material. As these coatings are prone to solid particle erosion at high temperatures, the erosion response of these coatings at elevated temperatures needs to be investigated. In order to achieve this objective, MCrAlY boron nitride polymer coating was deposited employing an air plasma spraying technique on a Ni-base alloy substrate. The important features of the microstructure and mechanical properties of the coating were examined, and the coating was subjected to erosion at various temperatures under different erosion conditions. The results indicate a ductile erosion behaviour for an abradable top coat. The erosion rate increases with the temperature of the coating. The detailed results of the investigation are presented, and the erosion mechanisms are studied.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"32 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84641191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A preliminary study into the effect of oxide chemistry on the bonding mechanism of cold-sprayed titanium dioxide coatings on SUS316 stainless steel substrate 初步研究了氧化物化学对SUS316不锈钢基体冷喷涂二氧化钛涂层结合机理的影响

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-08-10 DOI: 10.5599/jese.1423

N. Omar, Suhana Mohamed, Y. Yusuf, Toibah Abdul Rahim, Z. Mustafa, S. Ismail, I. Abu Bakar, Santirraprahkash Selvamani

{"title":"A preliminary study into the effect of oxide chemistry on the bonding mechanism of cold-sprayed titanium dioxide coatings on SUS316 stainless steel substrate","authors":"N. Omar, Suhana Mohamed, Y. Yusuf, Toibah Abdul Rahim, Z. Mustafa, S. Ismail, I. Abu Bakar, Santirraprahkash Selvamani","doi":"10.5599/jese.1423","DOIUrl":"https://doi.org/10.5599/jese.1423","url":null,"abstract":"Current attention has focused on the preparation of thick ceramic coating of nanostructured materials as feedstock material using the thermal spray process. The cold spray method has appeared as a promising process to form ceramic nanostructured coating without significantly changing the microstructure of the initial feedstock materials due to its low processing temperature. However, deposition of ceramic powders by cold spray is not easy due to the brittle characteristics of the material. In this study, TiO2 coatings were deposited on unannealed stainless steel substrates and substrates that were annealed from room temperature to 700 °C prior to spraying. The adhesion strength was evaluated to investigate the bonding mechanism. The influence of the remaining surface oxide layer of chromium oxide, Cr2O3, which is thermodynamically preferred for stainless steel, on the bonding mechanism involved was investigated. The results showed that by increasing the annealing substrate temperature of stainless steel, the adhesion strength of the coatings (thicker oxide) is also increased. As a result, the bonding between the cold-sprayed TiO2 particle and the steel substrate is given by the chemical bonding of an inter-oxide reaction. \u0000 ","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"61 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88957817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A sensitive and simple electrochemical technique for detecting ascorbic acid content in pharmaceutical and biological compounds 一种检测药物和生物化合物中抗坏血酸含量的灵敏、简便的电化学技术

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-08-10 DOI: 10.5599/jese.1366

S. Z. Mohammadi, Farideh Mousazadeh

引用次数: 1

Spray pyrolisis deposition and characterization of Cd-TiO2 thin film for photocatalytic and photovoltaic applications 光催化和光伏应用中Cd-TiO2薄膜的喷雾热解沉积和表征

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-08-03 DOI: 10.5599/jese.1120

M. Rasekaran, P. Kumaresan, S. Nithiyanantham, Vatakkaputhanmadom Krishnaiyer Subramanian, Sankar Kalpana

引用次数: 0

Ion-exchange membranes for blue energy generation: A short overview focused on nanocomposite 用于蓝色能源生成的离子交换膜:纳米复合材料的简要概述

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-07-31 DOI: 10.5599/jese.1447

J. Hong, Tae-Won Park

{"title":"Ion-exchange membranes for blue energy generation: A short overview focused on nanocomposite","authors":"J. Hong, Tae-Won Park","doi":"10.5599/jese.1447","DOIUrl":"https://doi.org/10.5599/jese.1447","url":null,"abstract":"Blue energy can be harvested from salinity gradients between saline water and freshwater by reverse electrodialysis (RED). RED as a conversion technique to generate blue energy has received increasing attention in recent decades. As part of the RED system, ion exchange membranes (IEMs) are key elements to the success of future blue energy generation. However, its suboptimal performance often limits the applications and stagnates the development of the technology. The key properties of IEMs include ion exchange capacity, permselectivity, and electrical resistance. The enhancement of such physical and electrochemical properties is crucial for studying energy production with acceptable output efficiency on a commercial scale. Recently, many studies have tried blending nanotechnology into the membrane fabrication process. Hybridizing inorganic nanomaterials with an organic polymeric material showed the great potential of improving electrical conductivity and permselectivity, as well as other membrane characteristics for power performance. In this short review, recent developments on the IEM synthesis in association with potential nanomaterials are reviewed and raising issues regarding the application and commercialization of RED-based energy production are discussed.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"36 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74084344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MnO2 nanorods modified screen-printed electrode for the electrochemical determination of Sudan dye in food sample 二氧化锰纳米棒修饰网印电极电化学测定食品中苏丹红染料

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-07-30 DOI: 10.5599/jese.1415

S. A. Ahmadi, P. Mohammadzadeh Jahani

引用次数: 2

High-velocity air fuel coatings for steel for erosion-resistant applications 耐腐蚀用钢用高速空气燃料涂层

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-07-28 DOI: 10.5599/jese.1369

Y. Y. Avcu, Mert Güney, E. Avcu

{"title":"High-velocity air fuel coatings for steel for erosion-resistant applications","authors":"Y. Y. Avcu, Mert Güney, E. Avcu","doi":"10.5599/jese.1369","DOIUrl":"https://doi.org/10.5599/jese.1369","url":null,"abstract":"High-velocity air fuel (HVAF) coating processes have advantages over conventional high-velocity oxygen fuel (HVOF) processes, resulting in coatings with superior properties. The present review first provides a concise overview of HVAF coatings, highlighting their advantages over HVOF coatings. Then, the fundamentals of solid particle, slurry, and cavitation erosion are briefly introduced. Finally, the performance of HVAF coatings for erosion-resistant applications is discussed in detail. The emerging research consistently reports HVAF-coatings having higher erosion resistance than HVOF-coatings, which is attributed to their elevated hardness and density and improved microstructural features that inhibit the surface damages caused by erosion. The dominant wear mechanisms are mainly functions of particle impact angle. For instance, the removal of the binder phase at high impact angles causes the accumulation of plastic strain on hard particles (e.g., WC particles) in the matrix, forming micro-cracks between the hard particles and the matrix, eventually decreasing the erosion resistance of HVAF coatings. The binder phase of HVAF-coatings significantly affects erosion resistance, primarily due to their inherent mechanical properties and bearing capacity of hard particles. Optimizing spraying parameters to tailor the microstructural characteristics of these coatings appears to be the key to enhancing their erosion resistance. The relationship between microstructural features and erosion mechanisms needs to be clarified to process coatings with tailored microstructural features for erosion-resistant applications.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90221488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Microstructural and mechanical properties of CNT-reinforced ZrO2-Y2O3 coated boiler tube steel T-91 cnt增强ZrO2-Y2O3涂层锅炉管钢T-91的组织和力学性能

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-07-26 DOI: 10.5599/jese.1228

Sandeep Kumar, R. Bhatia, Hazoor Singh, Roshan Lal Virdi

{"title":"Microstructural and mechanical properties of CNT-reinforced ZrO2-Y2O3 coated boiler tube steel T-91","authors":"Sandeep Kumar, R. Bhatia, Hazoor Singh, Roshan Lal Virdi","doi":"10.5599/jese.1228","DOIUrl":"https://doi.org/10.5599/jese.1228","url":null,"abstract":"The main purpose of this study was to fabricate carbon nanotubes (CNTs) reinforced zirconnium yttrium coatings on boiler tube steel and to investigate the microstructural and mechanical properties of these coatings. Plasma sprayed conventional ZrO2-Y2O3, ZrO2-Y2O3 and 1 wt.% CNT and ZrO2-Y2O3 and 4 wt.% CNT were prepared and deposited successfully on boiler tube steel material T-91 (ASTM SA-213) by plasma thermal spray technology. Microhardness, porosity, XRD (X-ray diffraction), SEM/EDAX (scanning electron microscopy/energy dispersive X-ray spectroscopy), X-ray mapping and cross-sectional analyses were used to analyse the specimens. The hardness of CNT reinforced ZrO2-Y2O3 increased with the increase in the percentage of CNT, whereas the porosity of the composite coatings decreased with the increase in the CNT percentage. The observed increase in hardness may be attributed to the content of CNT in the composite coating. The present research gives important information related to the fabrication and physical characteristics of CNT-reinforced ZrO2-Y2O3 coatings deposited on T-91 boiler tube steel.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"115 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90584605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Electrochemical detection of folic acid using a modified screen printed electrode 改性丝网印刷电极对叶酸的电化学检测

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-07-26 DOI: 10.5599/jese.1360

S. Z. Mohammadi, Farideh Mousazadeh, Maryam Mohammadhasani-Pour

引用次数: 6

A WSe2@Poly(3,4-ethylenedioxythiophene) nanocomposite based-electrochemical sensor for simultaneous detection of dopamine and uric acid 一种同时检测多巴胺和尿酸的WSe2@Poly(3,4-乙烯二氧噻吩)纳米复合电化学传感器

IF 2.2

Journal of Electrochemical Science and Engineering Pub Date : 2022-07-25 DOI: 10.5599/jese.1375

Yasin Tangal, Deniz Çoban, Sadık Çoğal

引用次数: 1