Transactions of the Indian Ceramic Society最新文献_第4页

The Effect of Morphology on the Photocatalytic Efficiency of Magnetite-Titania Nanoparticles for Wastewater Purification 形貌对二氧化钛-磁铁矿纳米颗粒净化废水光催化效率的影响

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-10-02 DOI: 10.1080/0371750X.2022.2149624

S. Baghshahi, Fataneh Yousefi

{"title":"The Effect of Morphology on the Photocatalytic Efficiency of Magnetite-Titania Nanoparticles for Wastewater Purification","authors":"S. Baghshahi, Fataneh Yousefi","doi":"10.1080/0371750X.2022.2149624","DOIUrl":"https://doi.org/10.1080/0371750X.2022.2149624","url":null,"abstract":"In this work, for the first time, the effect of magnetite morphology on magnetic and photocatalytic properties of magnetite-titania nanoparticles (Fe3O4-TiO2 NPs) for waste-water purification was studied. Hydrothermal method was used to synthesize magnetite and magnetite-titania nanoparticles, using ferrosulfate heptahydrate and tetraubutyl orthotitanate as magnetite and titania precursors, respectively. X-ray diffractometry and scanning electron microscopy results revealed successful synthesis of spherical (Fe3O4S), cubic (Fe3O4C) and rod-like (Fe3O4R) NPs. Fe3O4C NPs had the highest (66.36 emu.g−1) and Fe3O4R had the lowest (35.11 emu.g−1) saturated magnetism. By depositing titania on the magnetite NPs, saturated magnetism was drastically reduced in the samples. The kinetics of photocatalytic methylene blue (MB) decoloration of the samples followed the first-order model. MB removal efficiency of Fe3O4-TiO2 NPs with spherical, cubic and rod-like magnetite was more than 90, 73 and 64%, respectively, after 120 min irradiation, which shows an excellent improvement compared to similar works. It was interesting that the specific surface area of Fe3O4-TiO2 NPs had a higher influence on photocatalytic activity compared to morphology. The results revealed that Fe3O4C-TiO2 NPs had the highest magnetic saturation, while Fe3O4S-TiO2 NPs had the highest photocatalytic activity. It was found that Fe3O4S-TiO2 NPs had the optimal magnetic and photocatalytic properties, and may potentially be used for wastewater purification. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"81 1","pages":"175 - 182"},"PeriodicalIF":1.2,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42805454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Valorization of Ahlat Stone Wastes in the Production of Ceramic Tiles: Physical-Mechanical Properties 阿勒特石废料在瓷砖生产中的增值:物理-机械性能

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-10-02 DOI: 10.1080/0371750X.2022.2133013

Nihan Ercioglu-Akdogan

{"title":"Valorization of Ahlat Stone Wastes in the Production of Ceramic Tiles: Physical-Mechanical Properties","authors":"Nihan Ercioglu-Akdogan","doi":"10.1080/0371750X.2022.2133013","DOIUrl":"https://doi.org/10.1080/0371750X.2022.2133013","url":null,"abstract":"Ignimbrites (Ahlat Stone) with macro and micro-sized pores possessing independent of each other are volcanic rocks. It is mainly used as a building material because of its excellent insulation and easy to form material. The present study is aimed at producing floor tile which incorporated Ahlat stone as an alternative raw material for the ceramic industry. The effects of the increasing amount of Ahlat stone (1, 3 and 5 wt%) in the recipes on slurry rheology, physical properties of ceramic tiles, and sintering were studied. Chemical components of raw materials and Ahlat stone were determined using X-ray fluorescence spectroscopy and accordingly the recipes were created. The surface morphology of tiles was scanned using scanning electron microscope. When 3% Ahlat stone was added to the recipe, the flexural strength was calculated as 540 kgf.cm−2. This value is 22% higher than the value which is specified in the TSE standards. Therefore, tiles with a longer lifetime and more durability were developed. In addition, the increased amount of Ahlat stone in the recipe reduced the sintering temperature, thus energy saving was achieved during firing. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"81 1","pages":"141 - 148"},"PeriodicalIF":1.2,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47602272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Application of Silica Aerogel Films to the Fabrication of Surface Acoustic Wave Filters 二氧化硅气凝胶膜在声表面波滤波器制备中的应用

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-10-02 DOI: 10.1080/0371750X.2022.2149627

W. Zheng, Xun Xiang, Yao Wang, Yinhua Cui, Yuan Bao, S. He, Pengfei Li, Chuan Hu

{"title":"Application of Silica Aerogel Films to the Fabrication of Surface Acoustic Wave Filters","authors":"W. Zheng, Xun Xiang, Yao Wang, Yinhua Cui, Yuan Bao, S. He, Pengfei Li, Chuan Hu","doi":"10.1080/0371750X.2022.2149627","DOIUrl":"https://doi.org/10.1080/0371750X.2022.2149627","url":null,"abstract":"Herein, silica aerogel films were used in the fabrication of surface acoustic wave(SAW) filters for the first time. Firstly, silica aerogel films with various silica sol driptimes were prepared and characterized. According to spectroscopic ellipsometry, therefractive index of an aerogel film with a silica sol drip time of 9 min decreased by5.9% compared with a film with sol drip time of 18 min in the intermediate region ofthe sample. The increase in sol drip time led to an increase in particle size andthickness, and a decrease in pore size. Secondly, four different types of SAW filterswere designed, i.e. covered with either air, poly(dimethylsiloxane) (PDMS), PDMSfilled with silica aerogel powder, or a silica aerogel film. Addition of silica aerogelpowder to PDMS increased the bandwidth of the resulting SAW filter to 2.362 MHz,increased its central frequency to 0.001 GHz and decreased its insertion loss to 1.545dB. Although they had low porosity, the SAW filters covered with silica aerogel filmshad a bandwidth of 60.586 MHz, a central frequency of 2.447 GHz, a Q value of 40.073, and the largest insertion loss of –15.397 dB. SAW filters with silica aerogel films withvarious sol drip times were also tested. The results indicated that more porous thesilica aerogel films, stronger is the signal strength and smaller is the insertion lossof the SAW filter. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"81 1","pages":"183 - 189"},"PeriodicalIF":1.2,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43322563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erosion Response of High-Velocity Oxy-Fuel Sprayed Marble Dust-NiCr Coatings 高速氧喷涂大理石粉尘- nicr涂层的侵蚀响应

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-10-02 DOI: 10.1080/0371750X.2022.2149626

S. Nayak, A. Satapathy, S. Mantry, L. Besra

{"title":"Erosion Response of High-Velocity Oxy-Fuel Sprayed Marble Dust-NiCr Coatings","authors":"S. Nayak, A. Satapathy, S. Mantry, L. Besra","doi":"10.1080/0371750X.2022.2149626","DOIUrl":"https://doi.org/10.1080/0371750X.2022.2149626","url":null,"abstract":"In the present research, raw marble dust (an ornamental stone waste) with and without pre-mixing of nickel chrome (NiCr) powder are used as the feedstock material to deposit overlay coatings on the mild steel substrates through HVOF spraying technique. The physical as well as mechanical characterizations of the deposited coatings in terms of deposition efficiency, adhesion strength, coating thickness and micro-hardness are done at controlled laboratory conditions. To get an insight to the erosion behavior of the deposited coatings, high temperature solid particle erosion trials on them are carried out as per ASTM G76 considering the test parameter combinations obtained from Taguchi’s L16 orthogonal array. On analyzing the experimental outcomes, impact velocity, NiCr content in the feedstock, erodent temperature and impingement angle are found to be sequentially significant in terms of affecting the wear loss of the coatings. Based on the findings from the analysis, further experimentations are conducted at different levels of the significant control factors to ascertain their effects on the wear rate more precisely. The micrographs of the worn surfaces taken using a scanning electron microscope are studied to identify the possible damage mechanisms causing the erosion loss. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"81 1","pages":"149 - 157"},"PeriodicalIF":1.2,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43219799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Urban Determinants of COVID-19 Spread: a Comparative Study across Three Cities in New York State. COVID-19 传播的城市决定因素：纽约州三个城市的比较研究。

IF 4.3 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-10-01 Epub Date: 2022-06-06 DOI: 10.1007/s11524-022-00623-9

Agnieszka Truszkowska, Maya Fayed, Sihan Wei, Lorenzo Zino, Sachit Butail, Emanuele Caroppo, Zhong-Ping Jiang, Alessandro Rizzo, Maurizio Porfiri

{"title":"Urban Determinants of COVID-19 Spread: a Comparative Study across Three Cities in New York State.","authors":"Agnieszka Truszkowska, Maya Fayed, Sihan Wei, Lorenzo Zino, Sachit Butail, Emanuele Caroppo, Zhong-Ping Jiang, Alessandro Rizzo, Maurizio Porfiri","doi":"10.1007/s11524-022-00623-9","DOIUrl":"10.1007/s11524-022-00623-9","url":null,"abstract":"<p><p>The ongoing pandemic is laying bare dramatic differences in the spread of COVID-19 across seemingly similar urban environments. Identifying the urban determinants that underlie these differences is an open research question, which can contribute to more epidemiologically resilient cities, optimized testing and detection strategies, and effective immunization efforts. Here, we perform a computational analysis of COVID-19 spread in three cities of similar size in New York State (Colonie, New Rochelle, and Utica) aiming to isolate urban determinants of infections and deaths. We develop detailed digital representations of the cities and simulate COVID-19 spread using a complex agent-based model, taking into account differences in spatial layout, mobility, demographics, and occupational structure of the population. By critically comparing pandemic outcomes across the three cities under equivalent initial conditions, we provide compelling evidence in favor of the central role of hospitals. Specifically, with highly efficacious testing and detection, the number and capacity of hospitals, as well as the extent of vaccination of hospital employees are key determinants of COVID-19 spread. The modulating role of these determinants is reduced at lower efficacy of testing and detection, so that the pandemic outcome becomes equivalent across the three cities.</p>","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"34 1","pages":"909-921"},"PeriodicalIF":4.3,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9170119/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81686641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnesium Aluminate Spinel: Structure, Properties, Synthesis and Applications 铝酸镁尖晶石的结构、性能、合成及应用

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-07-03 DOI: 10.1080/0371750X.2022.2137701

S. Sinhamahapatra, P. Das, K. Dana, Himanshu Tripathi

{"title":"Magnesium Aluminate Spinel: Structure, Properties, Synthesis and Applications","authors":"S. Sinhamahapatra, P. Das, K. Dana, Himanshu Tripathi","doi":"10.1080/0371750X.2022.2137701","DOIUrl":"https://doi.org/10.1080/0371750X.2022.2137701","url":null,"abstract":"Magnesium aluminate (MA) is a spinel group of material and rarely available in nature. It exhibits several advantageous thermal, thermo-mechanical, optical, chemical properties which renders it suitable for wide gamut applications starting from refractory to sensor to IR transmitting window. It has face centered cubic structure and has wide solubility to its end members at elevated temperatures. As a result of this solubility, non-stoichiometric compositions exist in the phase field of spinel in the phase diagram. Due to its unavailability in nature, MA spinels are synthetically prepared through different routes and using different starting materials. Among these, solid state reaction sintering or conventional mixed oxide (CMO) method is the most techno-economical viable process. However, the challenge lies with the preparation of dense MA spinel from its oxide precursors in a single stage process is the expansion due to spinellization. Several attempts have been made to overcome this deterring factor through improving the reactivity of the precursors, by controlling the processing parameters, or by using the mineralizers. In this paper crystal structure, stoichiometry in spinel composition, mechanism of spinel formation, different synthesis method, properties and applications are reviewed. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"81 1","pages":"97 - 120"},"PeriodicalIF":1.2,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43113797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Synthesis, Structural and Raman Investigations of PbNi1/3Nb2/3O3 Ceramics PbNi1/3Nb2/3O3陶瓷的合成、结构及拉曼光谱研究

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-07-03 DOI: 10.1080/0371750X.2022.2123045

Preeti, Adityanarayan H. Pandey, R. Selvamani, S. M. Gupta, C. Shekhar

引用次数: 0

Elaboration and Characterization of β-TCP/ZrO2 Cements for Dental Applications 牙科用β-TCP/ZrO2骨水泥的研制与表征

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-07-03 DOI: 10.1080/0371750X.2022.2109212

C. Ruiz-Aguilar, Esbeidy Eveline Godinez-Gamiño

{"title":"Elaboration and Characterization of β-TCP/ZrO2 Cements for Dental Applications","authors":"C. Ruiz-Aguilar, Esbeidy Eveline Godinez-Gamiño","doi":"10.1080/0371750X.2022.2109212","DOIUrl":"https://doi.org/10.1080/0371750X.2022.2109212","url":null,"abstract":"In the present study, four β-TCP/ZrO2 cement compositions were made, in which the zirconia was varied in different amounts at 0.25, 0.5, 0.75 and 1 wt%. The goals of this investigation were: (i) To analyze the effect of the mechanical properties of zirconia on the different samples of cement, (ii) To evaluate in vitro formation of hydroxyapatite in all cements at different times dipping in artificial saliva, and (iii) To analyze the interaction of glass-ionomer type I in all β-TCP/ZrO2 cement compositions. The results found were that the amount of zirconia added to the cement compositions did not significantly affect the mechanical properties’ values compared to the sample without zirconia. Nevertheless, ZrO2 helped to stabilize the demineralization of the types of cement in contact with artificial saliva at different times. On the other hand, the glass ionomer type I used to link the powder cement caused a change in the mechanical behavior, enhancing the plasticity in all the cement compositions. The in vitro test allowed an analysis of the cement samples dipping in artificial saliva, which showed a decrease of pH value from 7 to 3.8 at three days. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"81 1","pages":"121 - 126"},"PeriodicalIF":1.2,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49645174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural and Electrical Properties of Gd Doped CeO2 (GDC) Nanoceramics for Solid Oxide Fuel Cell Applications 固体氧化物燃料电池用Gd掺杂CeO2（GDC）纳米陶瓷的结构和电学性能

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-07-03 DOI: 10.1080/0371750X.2022.2115400

Taranveer Kaur, Raman Kumar, Savidh Khan, Kulvir Singh, J. Kolte

引用次数: 2

Thermo Physical and Mechanical Characterization of Lightweight Porous Ceramics Produced from Porcelain Polishing Residues 陶瓷抛光残留物制备轻质多孔陶瓷的热物理力学性能

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2022-04-03 DOI: 10.1080/0371750X.2022.2096696

Derya Kırsever, H. Toplan

{"title":"Thermo Physical and Mechanical Characterization of Lightweight Porous Ceramics Produced from Porcelain Polishing Residues","authors":"Derya Kırsever, H. Toplan","doi":"10.1080/0371750X.2022.2096696","DOIUrl":"https://doi.org/10.1080/0371750X.2022.2096696","url":null,"abstract":"Traditional porcelain tile companies worldwide produce large amounts of residues during the polishing process. The recycling of these porcelain polishing residue becomes more critical. This study evaluates the incorporation of porcelain polishing residues as a raw material to produce lightweight porous ceramics as a new insulation material. Also, cellulose was used as the pore-making additive. The effect of sintering temperature and cellulose additive on the sintering behavior of porous ceramics, such as bulk density, linear shrinkage, water absorption were investigated. Flexural strength of the fired specimens was measured by three-point bending method. Thermal conductivities of the porous ceramics were predicted using laser flash method. Microstructural and phase observations were performed by scanning electron microscopy and X-ray diffractometry. Relatively low thermal conductivity of the samples sintered at 1100°C was obtained at 0.097 W.m–1.K–1 when 2.5 wt% cellulose additive was added, with low bulk density (<1 g.cm–3), water absorption (0.7%) and flexural strength (3.09 Mpa). These results indicate that the porcelain polishing residues could be used for lightweight porous ceramics production, thus giving rise to a new possibility for an environmental management of this abundant waste. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"81 1","pages":"84 - 91"},"PeriodicalIF":1.2,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45718263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1