Processing and Application of Ceramics最新文献_第8页

Optimization of La0.6Sr0.4Co0.2Fe0.8O3-α - Ba(Ce0.6Zr0.4)0.9Y0.1O3-δ cathode composition for proton ceramic fuel cell application 质子陶瓷燃料电池阴极组成La0.6Sr0.4Co0.2Fe0.8O3-α - Ba(Ce0.6Zr0.4)0.9Y0.1O3-δ的优化

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2204374i

I. Ismail, Nurul Izzati Malek, A. Jani, M. Othman, N. Osman

{"title":"Optimization of La0.6Sr0.4Co0.2Fe0.8O3-α - Ba(Ce0.6Zr0.4)0.9Y0.1O3-δ cathode composition for proton ceramic fuel cell application","authors":"I. Ismail, Nurul Izzati Malek, A. Jani, M. Othman, N. Osman","doi":"10.2298/pac2204374i","DOIUrl":"https://doi.org/10.2298/pac2204374i","url":null,"abstract":"Composite cathodes consisting of different compositional ratios of La0.6Sr0.4Co0.2Fe0.8O3-? (LSCF) and Ba(Ce0.6Zr0.4)0.9Y0.1O3-? (BCZY64), namely 100LSCF:0BCZY64 (L10B0), 70LSCF:30BCZY64 (L7B3), 50LSCF:50BCZY64 (L5B5) and 30LSCF:70BCZY64 (L3B7) were prepared via wet chemistry method. The symmetrical cell with a configuration of electrode|BCZY64|electrodewas fabricated using dry-pressingmethod for the electrolyte substrate and spin-coating technique for the cathode layer. The proton conduction in the composite cathode increases as the amount of proton-conducting phase increases as verified by the water uptake measurement performed via thermogravimetric analysis. The thickness of the composite cathode layer is about 15 ?m as observed by a scanning electron microscope and exhibits a well-connected particle network with sufficient porosity for oxidant diffusion (20-30%). The electrochemical performance of the symmetrical cell was investigated by electrochemical impedance spectroscopy in humidified air. The area-specific resistance (ASR) values of the tested cathodes follow the order of L7B3 < L10B0 < L5B5 < L3B7 and are 0.07 < 0.24 < 0.30 < 0.52W?cm2 at 700?C, respectively. The correlation between the cathode performance and cathode composition was investigated and the corresponding mechanism was systematically postulated.","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":"68582370","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

The effect of alkaline earth metal substitution on thermoelectric properties of A0.98La0.02MnO3-δ (A=Ca,Ba) 碱土金属取代对A0.98La0.02MnO3-δ (A=Ca,Ba)热电性能的影响

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2201078s

S. Singh, N. Kanas, M. Einarsrud, K. Wiik

引用次数: 2

Synthesis, characterization and photocatalytic efficiency of Fe3O4/SiO2/TiO2, SrFe12O19/SiO2/TiO2 and Fe3O4/SiO2/ZnO core/shell/shell nanostructures Fe3O4/SiO2/TiO2、SrFe12O19/SiO2/TiO2和Fe3O4/SiO2/ZnO核/壳/壳纳米结构的合成、表征及光催化效率

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2203291b

Fatemeh Bavarsiha, Saeideh Dadashian, M. Montazeri-Pour, Fardin Ghasemy-Piranloo, M. Rajabi

{"title":"Synthesis, characterization and photocatalytic efficiency of Fe3O4/SiO2/TiO2, SrFe12O19/SiO2/TiO2 and Fe3O4/SiO2/ZnO core/shell/shell nanostructures","authors":"Fatemeh Bavarsiha, Saeideh Dadashian, M. Montazeri-Pour, Fardin Ghasemy-Piranloo, M. Rajabi","doi":"10.2298/pac2203291b","DOIUrl":"https://doi.org/10.2298/pac2203291b","url":null,"abstract":"In this research, three magnetically separable photocatalysts, Fe3O4/SiO2/TiO2, SrFe12O19/SiO2/TiO2 and Fe3O4/SiO2/ZnO, with core/shell/shell structures were successfully prepared. In the first step, soft magnetic and hard magnetic Fe3O4 and SrFe12O19 powders were synthesized using carbon reduction and co-precipitation routes, respectively. In the second step, silica coating was performed by controlling the hydrolysis and con- densation of tetraethyl orthosilicate (TEOS) precursor on the magnetic cores. In the third step, a layer of TiO2 or ZnO photocatalytic shells was made on the as-prepared composites using titanium n-butoxide (TNBT) or zinc nitrate hexahydrate, respectively. The formation of the core/shell/shell structures was confirmed by FESEM and TEM analyses. The saturation magnetizations of the Fe3O4/SiO2/TiO2, SrFe12O19/SiO2/TiO2 and Fe3O4/SiO2/ZnO photocatalytic materials were 41.5, 33 and 49 emu/g, respectively. Photocatalytic activity was evaluated by degradation percentages of methylene blue (MB) under UV illumination, which were 88%, 83% and 62%, for the Fe3O4/SiO2/TiO2, SrFe12O19//TiO2 and Fe3O4/SiO2/ZnO composites, respectively. The first-, and second-order reaction kinetics were used to find out the suitable MB removal kinetics.","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":"68581528","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

Study on mechanisms of microwave synthesis of SiC crystal from sheet carbon source 片状碳源微波合成SiC晶体机理研究

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2203283s

Bozhen Song, Chenjiang Dong, Xinyue Zhang, B. Fan, Jingqing Gao, Rui Zhang

引用次数: 0

α-tricalcium phosphate/fluorapatite-based cement - promising dental root canal filling material α-磷酸三钙/氟磷灰石基骨水泥:一种很有前途的根管填充材料

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2201022k

A. Kazuz, Ž. Radovanović, Djordje Veljovic, V. Kojić, D. Jakimov, Tamara Vlajic-Tovilovic, V. Miletic, R. Petrović, Djordje Janackovic

{"title":"α-tricalcium phosphate/fluorapatite-based cement - promising dental root canal filling material","authors":"A. Kazuz, Ž. Radovanović, Djordje Veljovic, V. Kojić, D. Jakimov, Tamara Vlajic-Tovilovic, V. Miletic, R. Petrović, Djordje Janackovic","doi":"10.2298/pac2201022k","DOIUrl":"https://doi.org/10.2298/pac2201022k","url":null,"abstract":"?-Tricalcium phosphate/fluorapatite (?-TCP/FAp) mixed powders were prepared in order to obtain dental root canal filling cements. Different liquids for cement pastes have been investigated and the most suitable one for obtaining rheologically optimal pastes was chosen for further analysis. Morphological changes in the cement materials as a consequence of the formation of hydroxyapatite (HAp) after the immersion in a simulated body fluid (SBF), an influence on the cell viability, and final success of the filling were investigated by field emission scanning electron microscopy. Treatment of the ?-TCP/FAp mixtures in SBF at 37?C resulted in a complete transformation of ?-TCP into HAp after 10 days, while the exposure of MRC-5 human and L929 animal fibroblast cells to the cement showed complete absence of cytotoxicity. The root canal of an extracted tooth was filled with the ?-TCP/FAp cement containing 5 wt.% of FAp and relatively strong adhesion between the cement and dentine was observed after 48h. The same cement material was immersed during 10 days in SBF and after that both human and animal fibroblast cells during in vitro MTT tests showed higher cell viability compared to the control sample. These findings lead to a conclusion that the ?-TCP/FAp based cement demonstrates potential for further development towards dental cement application.","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":"68579581","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

Oxidation resistance performance of SiC-AlON ceramic composites at high temperature SiC-AlON陶瓷复合材料的高温抗氧化性能

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2202097x

Lai Xiao, Yu-de Xiao, Xiao-long Zhao, Xing Li, Lv Chen, T. Xuan, Ya Zhang, Z. Cai, Xiao Wang

引用次数: 1

Fabrication of ceramics using photosensitive slurries: A comparison between UV-casting replication and vat photopolymerization 3D printing 使用光敏浆料制造陶瓷:紫外光铸造复制和还原光聚合3D打印的比较

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2202153c

Ítalo Leite de Camargo, J. Lovo, R. Erbereli, E. Bock, C. Fortulan

{"title":"Fabrication of ceramics using photosensitive slurries: A comparison between UV-casting replication and vat photopolymerization 3D printing","authors":"Ítalo Leite de Camargo, J. Lovo, R. Erbereli, E. Bock, C. Fortulan","doi":"10.2298/pac2202153c","DOIUrl":"https://doi.org/10.2298/pac2202153c","url":null,"abstract":"The development of photosensitive ceramic slurries for vat photopolymerization (stereolithography or digital light processing) has received much effort in recent years. However, many of these ceramic suspensions have high viscosity and they are suitable for use only on equipment, specialized in ceramic additive manufacturing. In this work, ceramic manufacturing using photocurable slurries was tested in a low-cost vat photopolymerization printer and in silicone moulds for UV-casting replication, with the latter approach still scarcely explored in the literature. Both processes were able to produce ceramic parts. The UV-casting replication was able to work with more viscous photocurable ceramic slurries and proved more suitable for the manufacturing of ceramic parts with larger cross-sections, providing pieces with improved flexural strength to those produced by additive manufacturing. This work presents the possibility of UV-casting photosensitive slurries to manufacture ceramics, an approach that could be easily adopted without high equipment costs.","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":"68580505","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

Structure and properties of Ta doped TiN films prepared using different sputtering powers for Ta target 采用不同溅射功率制备Ta掺杂TiN薄膜的结构与性能

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2203191w

Yue-Sheng Wang, Xin Shi, Miaomiao Liu, Yifa Yang, Qilong Gao, B. Zhu, L. Xu

{"title":"Structure and properties of Ta doped TiN films prepared using different sputtering powers for Ta target","authors":"Yue-Sheng Wang, Xin Shi, Miaomiao Liu, Yifa Yang, Qilong Gao, B. Zhu, L. Xu","doi":"10.2298/pac2203191w","DOIUrl":"https://doi.org/10.2298/pac2203191w","url":null,"abstract":"Ta doped TiN films were prepared on glass substrates by DC magnetron co-sputtering. The structure and properties of the obtained (Ti,Ta)N film were characterized by X-ray diffraction, Raman spectroscopy, ultraviolet/visible/near-infrared spectrophotometer and four probes method. The results show that with the increase of the sputtering power (PTa) for Ta target, the amount of Ta added to TiN lattice increases, resulting in a slight distortion of TiN lattice and stress transformation in the film. Correspondingly, the optical and electrical properties of the film changed. Raman spectrum was deconvoluted into five Lorentz peaks in the range of 50-1400 cm?1 and a new Raman peak appeared in all samples due to the substitution of Ta for Ti. The analysis of deconvolution results shows that the peak positions of different phonon modes and FWHM change, which may be related to the change of stress in the thin films caused by adding Ta to TiN lattice. The sample prepared with power of 50W has the maximum infrared emissivity of 1.35 and 0.43 at 2.5 and 25 ?m wavelengths, respectively, indicating that (Ti,Ta)N film is promising candidate for replacing TiN in Low-E glass.","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":"68581322","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

Apatite-forming ability of bioglass coated bovine bone scaffolds 生物玻璃涂层牛骨支架的磷灰石形成能力

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2203276j

M. Jakab, M. Enisz-Bódogh, K. Kovacs

引用次数: 0

Development of a new system of solid ionic conductors based on multi-doped ceria for application in IT-SOFCs 基于多掺杂氧化铈的新型固体离子导体体系在it - sofc中的应用

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2204391s

M. Stojmenović, N. Nisic, M. Zunic, F. Basoli, Jelena Gulicovki, I. Ristovic, M. Kragović

{"title":"Development of a new system of solid ionic conductors based on multi-doped ceria for application in IT-SOFCs","authors":"M. Stojmenović, N. Nisic, M. Zunic, F. Basoli, Jelena Gulicovki, I. Ristovic, M. Kragović","doi":"10.2298/pac2204391s","DOIUrl":"https://doi.org/10.2298/pac2204391s","url":null,"abstract":"Nanosized multi-doped ceria with composition Ce0.8Nd0.0025Sm0.0025Gd0.005Dy0.095Y0.095O2-? (CNSGDY) as perspective solid ionic conductor was obtained by modified glycine-nitrate procedure (MGNP) and room temperature self-propagating reaction (SPRT). The pressed pellets of both powders were sintered at 1550?C for 2 h in an air atmosphere. The obtained sintered samples were characterized by XRPD, Raman spectroscopy, FESEM, EDS and EIS methods. Despite a high temperature of sintering, XRPD and FESEM analyses of the samples confirmed appropriate dimensions of grains with fluorite structure. Overall concentration of introduced dopants (x = 0.2) in the structure of CeO2 after the sintering process was confirmed by EDS analysis. After sintering, Raman spectroscopy confirmed retention of the oxygen vacancies in the ceria lattice, which is in accordance with the improvement of ionic conductivity of solid ionic conductors. The highest value of total conductivity was obtained for the sintered MGNP sample at 700?C (4.22 ? 10?2 S cm?1), with the corresponding activation energy of 0.26 eV.","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":"68582478","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