Processing and Application of Ceramics最新文献_第4页

Production of tib2 coatings on graphite substrates by electrophoretic deposition in NaF-AlF3 melt 在NaF-AlF3熔体中电泳沉积石墨基底制备tib2涂层

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2301009z

Jun Zhang, Jie Pang, W. Jin, S. Chu, Martin Haarberg, S. Xiao

引用次数: 0

Preparation of silicon carbide ceramic slurry for stereolithography based additive manufacturing 基于立体光刻增材制造的碳化硅陶瓷浆料的制备

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2301047y

Gaolin Ye, Yifei Jiao, Peng Zhou, Jinxing Sun, Likuan Zhu, F. Gong, Jiaming Bai, Gang Liu, Ming Yan, Rubing Zhang

引用次数: 0

Use of cobalt ferrite and activated carbon in supercapacitors 钴铁氧体和活性炭在超级电容器中的应用

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2301014i

D. Isidorio, E. Santos, A. Filho, S. Da, Amal Eltom, Biasi de

{"title":"Use of cobalt ferrite and activated carbon in supercapacitors","authors":"D. Isidorio, E. Santos, A. Filho, S. Da, Amal Eltom, Biasi de","doi":"10.2298/pac2301014i","DOIUrl":"https://doi.org/10.2298/pac2301014i","url":null,"abstract":"Supercapacitors are energy storage devices that can cleanly and efficiently meet the growing energy demand. The presentwork describes the synthesis of nanoparticles of cobalt ferrite (CoFe2O4) by the combustion method and their use with activated carbon (AC) to manufacture supercapacitors. In order to study the influence of composition on the electrochemical properties, supercapacitors with three different compositions were produced: Fe90 (90% CoFe2O4 and 10% AC), Fe50 (50% CoFe2O4 and 50% AC) and Fe10 (10% CoFe2O4 and 90% AC). Microstructural and morphological analyses were performed by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electronmicroscopy (TEM), and Raman spectroscopy. Cyclic voltam-metry (CV), galvanostatic charge-discharge (GCD), floating and electrochemical impedance spectroscopy (EIS) tests were performed. XRD, SEM, TEM and Raman results showed that the combustion method was effective for the production of CoFe2O4 nanoparticles. SEM and Raman spectroscopy results showed that the AC has a porous structure and low crystallinity. According to CV, GCD and floating tests, all three supercapacitors presented excellent electrochemical stability. The Fe50 composition yielded the lowest equivalent series resistance, while the Fe10 composition yielded the highest capacitance. The results show that the combination of AC with CoFe2O4 is promising for the use in supercapacitors.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"92 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68582616","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

Electrical conductivity and electrical stability of Bi/Mg modified NiO ceramics for NTC thermistors NTC热敏电阻用Bi/Mg改性NiO陶瓷的电导率和电稳定性

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2302172h

Linling Huang, Zhicheng Li, Kaifeng Li, You Zhang, Hong Zhang, S. Leng

{"title":"Electrical conductivity and electrical stability of Bi/Mg modified NiO ceramics for NTC thermistors","authors":"Linling Huang, Zhicheng Li, Kaifeng Li, You Zhang, Hong Zhang, S. Leng","doi":"10.2298/pac2302172h","DOIUrl":"https://doi.org/10.2298/pac2302172h","url":null,"abstract":"Thermistors with negative temperature coefficient (NTC) of resistivity are important components for temperature sensors and actuators. High material constant (B value) of NTC thermistor, i.e. high-temperature sensitivity, is one of key focuses. Herein, Bi/Mg modified NiO based ceramics for NTC thermistors were prepared by conventional solid-state reaction method. Introduction of Bi2O3 significantly enhances the sintering ability of ceramics and reduces the sintering temperature from 1380 to 1250?C. Mg-doping (i.e. preparation of Ni1-xMgxO ceramics, where x=0, 0.02, 0.05, 0.07 and 0.1) has significant effect on room temperature resistivity (?25). Phase composition, microstructure, electrical property and electrical stability were investigated. All prepared ceramics have the phase with rock-salt structure and show typical NTC characteristics with B values higher than 5300K. The electrical stability with an optimized resistance-change rate of 1.02%after being aged at 150?C for 500 h is achieved. The electrical properties of the ceramics were analysed by combining X-ray photoelectron spectra with complex impedance spectra.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68583043","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

Theoretical prediction by DFT on properties of β′-SrTa2O6 crystal β′-SrTa2O6晶体性质的DFT理论预测

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2301001a

M. Aycibin, M. Erzen, H. Akkuş

引用次数: 0

Viscosity optimisation of photosensitive al2o3 slurry for stereolithography based additive manufacturing 基于立体光刻增材制造的光敏氧化铝浆料粘度优化

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2301091l

Yinhao Li, Shuangyu Liu, Ping Lu, Mikhailovna Vasilieva, Fulong Zhang, Juan Hong

{"title":"Viscosity optimisation of photosensitive al2o3 slurry for stereolithography based additive manufacturing","authors":"Yinhao Li, Shuangyu Liu, Ping Lu, Mikhailovna Vasilieva, Fulong Zhang, Juan Hong","doi":"10.2298/pac2301091l","DOIUrl":"https://doi.org/10.2298/pac2301091l","url":null,"abstract":"Viscosity of alumina slurry is a key factor affecting the quality of ceramics formed by stereo photolithography, but it is closely related to the resin distribution ratio, dispersant content, plasticizer content and solid content. Most researchers utilize the single factor method to study the composition and ratio of the slurry. In this study, orthogonal experimental design and back propagation artificial neural networks methods were combined to solve the optimisation problem of multi-objective and multi-factor influence on alumina slurry performances. The results of optimal composition and content allocation were achieved by back propagation artificial neural networks and experimental testing. It was shown that the optimal conditions are: resin composition HDDA : PPTTA = 4 : 1, DS-165A dispersant content of 3.86wt.%, PEG plasticiser amount of 3.5wt.% and the solid content of 75.74wt.%. The predicted optimal viscosity value was 8787mPa?s and the shrinkage rate could reach 14.57%. The optimal values of viscosity and shrinkage were consistent with the experimental results, the viscosity and shrinkage errors were only 4.06% and 3.856%, respectively. The average density and bending strength of the sintered samples were 3.979 ? 0.005 g/cm3 and 365 ? 61MPa, respectively. According to the obtained data, stereolithography 3D printing alumina slurry with excellent flowability and low shrinkage was successfully prepared.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68582455","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

Synthesis and near-infrared reflection performance of (Cr,V)-ZrSiO4 jewel green pigments (Cr,V)-ZrSiO4宝石绿颜料的合成及其近红外反射性能

4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2303295j

Feng Jiang, Junling Yu, Guo Feng, Tao Wang, Xiaojun Zhang, Quan Zhang, Rongchi Zhang, Qian Wu, Qing Hu, Yun Yu, Jianmin Liu

引用次数: 0

High-temperature oxidation behaviour of si3n4 nanowires with different diameters 不同直径si3n4纳米线的高温氧化行为

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2301039z

Shuang Zhao, Feiyue Yang, Jun Chen, Kunfeng Li, Zhifang Fei, Zichun Yang

引用次数: 0

Low-temperature sintering of Li4SiO4 spheres with high crushing load using mesoporous silica as Si sources 以介孔二氧化硅为硅源低温烧结高破碎负荷Li4SiO4球

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2301055g

Yichao Gong, Xin Chen, K. Kang, Yuefei Wang, Qingze Na, S. Ren, Guojun Zhang

引用次数: 0

Influence of polymer synthesis route and organic fraction content on structure and porosity of silicon oxycarbide ceramics 聚合物合成路线和有机组分含量对碳化硅陶瓷结构和孔隙率的影响

IF 1.1 4区材料科学

Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2302118c

B. Costa, M.I.A. De Silva, C. Tarley, E. Ribeiro, M. Segatelli

{"title":"Influence of polymer synthesis route and organic fraction content on structure and porosity of silicon oxycarbide ceramics","authors":"B. Costa, M.I.A. De Silva, C. Tarley, E. Ribeiro, M. Segatelli","doi":"10.2298/pac2302118c","DOIUrl":"https://doi.org/10.2298/pac2302118c","url":null,"abstract":"This paper describes the structural and textural characteristics of silicon oxycarbide ceramics obtained from three different hybrid polymers by varying pyrolysis temperature. The first polymer was prepared by hydrosilylation between poly(hydromethylsiloxane) and divinylbenzene in stoichiometric proportions; the second was similarly obtained, but with excess of divinylbenzene (60 wt.%) and the third was also synthesized with 60 wt.% divinylbenzene, involving simultaneously hydrosilylation and radical reactions. Precursors were pyrolysed under argon at 1000, 1200 and 1500?C to produce silicon oxycarbide-based ceramics. Silicon carbide phase development and devitrification resistance were influenced by the disordered and ordered residual carbon fraction, which was directly related to the polymer structure. High specific surface area and pore volume values were obtained in C-richer ceramics at 1500?C derived from poly(divinylbenzene) network-containing precursor. Silicon oxycarbide matrices, derived from hybrid polymers containing graphitic carbon and silicon carbide phases together with different amount of porosity, revealed desirable features for electrochemical applications and adsorbent systems.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68582879","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