Processing and Application of Ceramics最新文献_第9页

Enhanced dielectric properties and energy storage density of Mg-doped SrTiO3 nanowire films 镁掺杂SrTiO3纳米线薄膜的介电性能和储能密度增强

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2201055h

Mahsa Harooni, A. Sadeghzadeh‐Attar

引用次数: 2

Thermoelectric properties of CaMnO3 ceramics produced by using powder synthesized by modified Pechini method 改性Pechini法合成粉体制备CaMnO3陶瓷的热电性能

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2202115t

S. Torres, J. Rosa, D. Thomazini, M. Gelfuso

{"title":"Thermoelectric properties of CaMnO3 ceramics produced by using powder synthesized by modified Pechini method","authors":"S. Torres, J. Rosa, D. Thomazini, M. Gelfuso","doi":"10.2298/pac2202115t","DOIUrl":"https://doi.org/10.2298/pac2202115t","url":null,"abstract":"Calcium manganate (CMO) is a promising n-type semiconductor for thermoelectric applications due to its intrinsic properties. Still, these properties are highly dependent on the processing route used to produce these materials. In this work, properties of the polycrystalline CMO ceramics are reported by studying samples obtained from powders synthesized by a modified Pechini method and sintered at 1543K for 1, 3, 6, 12 and 24 h. Crystallographic parameters of the resulting phases were determined from X-ray diffraction patterns. The ceramics sintered for 6 h has the highest density (94.8%TD), while the CMO-1h sample (sintered only 1 h) presented the lowest density (77.2%TD) due to a large amount of secondary phase and short sintering time. The crystallite sizes of the CMO particles reached 49.2 nm; meanwhile, the grain sizes were in the range from 1.04 to 4.85 ?m. Seebeck coefficient has a negative value, characterizing an n-type material, and its value approached ?350 ?V/K at 873K. The sample sintered for 1 h has the lowest value of thermal conductivity (3.3W/mK), while the ceramics sintered for 3 h reached maximum electrical conductivity value (1830 S/m), both at 873K. In addition, this high conductivity of the ceramics sintered for 3 h contributed to it having the highest ZT value of about 0.039.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68580613","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: 2

Effect of sintering temperature on microstructure and electrical properties of Ce0.82Dy0.155Sr0.025O2-δ electrolyte 烧结温度对Ce0.82Dy0.155Sr0.025O2-δ电解质组织和电性能的影响

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2202175r

S. Ramesh

引用次数: 0

Room temperature plasticity of zirconia-yttria-titania ceramics: Experimental indications and structural modelling 氧化锆-氧化钇-二氧化钛陶瓷的室温塑性:实验指示和结构建模

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2204367u

V. Ussui, D. Lazar, N. D. de Lima, A. Arata, Fabio Ribeiro, G. Dalpian, J. Marchi, José Octavio Paschoal

{"title":"Room temperature plasticity of zirconia-yttria-titania ceramics: Experimental indications and structural modelling","authors":"V. Ussui, D. Lazar, N. D. de Lima, A. Arata, Fabio Ribeiro, G. Dalpian, J. Marchi, José Octavio Paschoal","doi":"10.2298/pac2204367u","DOIUrl":"https://doi.org/10.2298/pac2204367u","url":null,"abstract":"Yttria-stabilized tetragonal zirconia (Y-TZP) ceramics have excellent mechanical properties. However, such materials cannot undergo plastic deformation at room temperature due to their high hardness and brittleness values, hindering machinability. To overcome these limitations, we propose a zirconia-yttria-titania ceramics, based on zirconia containing 3mol% yttria and up to 15mol% titania. The zirconia-yttria-titania powders were synthesized by co-precipitation method, uniaxially pressed and sintered at 1400?C/5 h. Sample characterizations were carried out by X-ray diffraction, scanning electron microscopy and mechanical properties through Vickers hardness and toughness measurements. Compared to the Y-TZP ceramics, the yttria stabilised tetragonal zirconia ceramics co-doped with 10mol%Ti showed noticeable increase of tetragonality parameter, higher toughness and lower hardness values, indicating plasticity at room temperature. Furthermore, the atomistic simulation by Density Functional Theory methodology suggests the occurrence of spatial arrangement of the atoms, explaining the proposed plasticity.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68582349","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

Effect of iron source on nonhydrolytic sol-gel synthesis of Fe2TiO5 铁源对非水解法制备Fe2TiO5的影响

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2201007j

Feng Jiang, Guo Feng, Lina Yin, Qianqian Zhao, Yun-Hao Yu, Weihui Jiang

引用次数: 2

Influence of calcination temperature on structure and multiferroic properties of barium ferrite ceramics 煅烧温度对钡铁氧体陶瓷结构和多铁性质的影响

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2202106z

Zhixin Zeng, Q. Zhang, Heng Wu, Mengshuang Lan, Hongmin Ao, Wenchuan Li, Chuang Zhou, Jizhuang He, S. Xing, X. Deng, R. Gao

引用次数: 0

Preparation and performance of g-C3N4/CuS film as counter electrode for quantum dot sensitized solar cells 量子点敏化太阳能电池对电极g-C3N4/ cu膜的制备及性能

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2202167c

Xiaopeng Chang, Na Xu, Zhifeng Liu, Shuo Tian, Dekai Wen, Wanjiang Zheng, De-ming Wang

引用次数: 0

Fabrication of Al2O3-Nb2O5-LiF-ZrO2 FGMs by SPS method: Microstructural evaluation, dynamic and sintering behaviour SPS法制备al2o3 - nb2o5 - liff - zro2 fgm:显微组织评价、动力学和烧结性能

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2203251j

Jesus de, S. Da, M. Ribeiro, S. Da, V. Arantes, A. Gomes

{"title":"Fabrication of Al2O3-Nb2O5-LiF-ZrO2 FGMs by SPS method: Microstructural evaluation, dynamic and sintering behaviour","authors":"Jesus de, S. Da, M. Ribeiro, S. Da, V. Arantes, A. Gomes","doi":"10.2298/pac2203251j","DOIUrl":"https://doi.org/10.2298/pac2203251j","url":null,"abstract":"For the first time, alumina functionally graded materials (FGMs) with additions of niobium oxide, lithium fluoride and zirconia were produced by spark plasma sintering (SPS) and their sintering behaviour and dynamic properties were studied aiming to evaluate possibility of their use as ballistic shielding. Six groups of alumina samples with different layer compositions were produced by SPS at 1400 ?C/5min. The samples were characterized by dilatometry, scanning electron microscopy (SEM) and Hopkinson split bar method. The composition with the zirconia addition exhibited lower shrinkage rates at higher temperatures than the groups without zirconia, which promoted small sample shrinkage, resulting in lower density and higher porosity. The dynamic test showed that the alumina FGMs with layer containing LiF had the highest strain and strain rate values, exhibiting that the presence of continuous gradients in the composition positively affects the ceramic properties. Densification, layer change and cracks propagating through the material layers were also analysed by SEM analyses.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68581394","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

High-Density Ceramics Obtained By Andesite Basalt Sintering 安山岩玄武岩烧结制备高密度陶瓷

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2021-08-25 DOI: 10.21203/rs.3.rs-827727/v1

V. Pavkov, G. Bakić, Vesna Maksimovic, I. Cvijović-Alagić, Marija Prekajski Đorđević, D. Bučevac, B. Matović

{"title":"High-Density Ceramics Obtained By Andesite Basalt Sintering","authors":"V. Pavkov, G. Bakić, Vesna Maksimovic, I. Cvijović-Alagić, Marija Prekajski Đorđević, D. Bučevac, B. Matović","doi":"10.21203/rs.3.rs-827727/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-827727/v1","url":null,"abstract":"\u0000 Modern industrial requirements include not only the usage of constructive materials with good mechanical properties but also materials obtained through environmentally friendly and low-cost processing procedures. Basalt, as a low-cost raw material, is regarded as a good candidate for industrial constructive parts production. In the present study, andesite basalt originated from the deposit site \"Donje Jarinje\", Serbia, was examined as a potential raw material for high-density ceramics production. The production of high-density ceramics included dry milling, homogenization, cold isostatic pressing, and sintering in the air. To determine the optimal processing parameters the sintering was conducted at 1040, 1050, 1060, 1070, and 1080 °C, and afterward the sintering duration was varied from 30 to 240 min at the optimal sintering temperature of 1060 °C. Characterization of the starting and sintered materials included the estimation of particle size distribution, density, hardness, and fracture toughness complemented with X-ray diffraction, light optical microscopy, scanning electron microscopy, and energy dispersive spectroscopy analysis. Phase transformations did not occur during processing in the investigated temperature range from 1040 to 1080 °C. The obtained research results showed that 99.5% of relative density and the highest hardness and fracture toughness values of 6.7 GPa and 2.2 MPaÖm, respectively, were achieved for the andesite basalt sintered at 1060 °C for 60 min in the air. The results of the presented study confirmed that the sintered andesite basalt can be used as a high-density ceramic material for various industrial applications since this environmentally friendly material shows satisfactory mechanical properties.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41337846","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: 2

Phase equilibria in the La2O3-Y2O3-Gd2O3 system at 1500°C La2O3-Y2O3-Gd2O3体系在1500°C下的相平衡

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2021-06-12 DOI: 10.1016/J.JEURCERAMSOC.2021.06.017

O. Chudinovych, O. Andrievskaya, J. D. Bogatyryova, V. V. Kovylyaev, O. Bykov

引用次数: 3