Transactions of the Indian Ceramic Society最新文献_第8页

Microwave-assisted Preparation of Precursor for the Synthesis of Nanocrystalline Boron Carbide Powder 微波辅助制备纳米晶碳化硼粉体前驱体

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-10-01 DOI: 10.1080/0371750x.2020.1832581

Soja K. Vijay, R. Prabhu, D. Annie, V. Chandramouli, S. Anthonysamy, Ashish Jain

引用次数: 1

Optical and Photoluminescence Properties of the MgAl2O4:M (M = Ti, Mn, Co, Ni) Phosphors: Calcination Behavior and Photoluminescence Mechanism MgAl2O4:M（M=Ti，Mn，Co，Ni）荧光粉的光致发光性能：煅烧行为和光致发光机理

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-10-01 DOI: 10.1080/0371750x.2020.1817789

Shifa Wang, Huajing Gao, H. Yu, Peiying Li, Yanwu Li, Chaoli Chen, Yong Wang, Liang Yang, Zijuan Yin

{"title":"Optical and Photoluminescence Properties of the MgAl2O4:M (M = Ti, Mn, Co, Ni) Phosphors: Calcination Behavior and Photoluminescence Mechanism","authors":"Shifa Wang, Huajing Gao, H. Yu, Peiying Li, Yanwu Li, Chaoli Chen, Yong Wang, Liang Yang, Zijuan Yin","doi":"10.1080/0371750x.2020.1817789","DOIUrl":"https://doi.org/10.1080/0371750x.2020.1817789","url":null,"abstract":"Abstract MgAl2O4:M (M = Ti, Mn, Co, Ni) phosphors were successfully prepared by a modified polyacrylamide gel method. Calcination temperature and metal particle has significant effects on the phase transition, optical and color properties of Mg Al2O4: M phosphors. Ti, M n, Co and Ni metal particles introduced into the MgAl2O4 system can produce a variety of colours from white, grayish black, blue to turquoise blue. Mn, Co and Ni metal particles added into MgAl2O4 system can extend their light absorption to visible light range, while the Ti metal particles clad into the system did not improve significantly. Co metal particles appended into the MgAl2O4 system can cause fluorescence quenching of emission peak at 395 nm and enhancement of emission peak at 405 nm, while the Ti and Mn metal particles infused into the system can bring the enhancement of visible emission peak at 425 nm. The fluorescence quenching of the peak at 395 nm can be ascribed to the wavelength of Co metal particles matching the surface plasmon absorbance band of MgAl2O4:M phosphor. A reduction in emission intensity at 425 nm can be assigned to electron transfer from the conduction band (CB) of MgAl2O4 to the CB of metal particles causing non-radiative decay. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"79 1","pages":"221 - 231"},"PeriodicalIF":1.2,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0371750x.2020.1817789","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45023816","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: 8

Structural, Ferroelectric, Dielectric and Piezoelectric Studies of Yttrium Substituted SrBi2Nb2O9 Lead-free Relaxor Ceramics 钇取代SrBi2Nb2O9无铅弛豫陶瓷的结构、铁电、介电和压电研究

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-10-01 DOI: 10.1080/0371750x.2020.1801514

J. N. Kiran, K. S. Rao, H. Workineh, P. Prameela, K. Sowribabu

{"title":"Structural, Ferroelectric, Dielectric and Piezoelectric Studies of Yttrium Substituted SrBi2Nb2O9 Lead-free Relaxor Ceramics","authors":"J. N. Kiran, K. S. Rao, H. Workineh, P. Prameela, K. Sowribabu","doi":"10.1080/0371750x.2020.1801514","DOIUrl":"https://doi.org/10.1080/0371750x.2020.1801514","url":null,"abstract":"Abstract Ferroelectric ceramic compositions SrBi2–xYxNb2O9 (x = 0.0, 0.2, 0.4, 0.6 and 0.8) were prepared via conventional solid-state route with high density (92-99%) establishing the sintering conditions. X-ray diffraction studies confirmed the orthorhombic structure. The micrographs obtained from scanning electron microscopy showed the presence of well packed and randomly oriented needle-shaped grains with an average grain size of 1.624 μm. FTIR and Raman studies on these samples indicated the growth of single phase perovskite material. From the dielectric studies, the phase transition temperature (T c) of strontium bismuth niobate (SBN) was found to be 430oC, whereas the Tc of yttrium substituted SBN (SBYN) was found to decrease from 400° to 370°C. The transition was diffuse and frequency dependent which is a characteristic behavior of relaxor material. The diffuseness parameter (γ) was computed for all the compositions. P-E loop measurements showed a decrease in the parameters P s, P r and E c in yttrium substituted SBN compared to SBN. Piezoelectric studies in SBN and SBYN estimated k p, d 33, g 33 and Qm values. Cole-Cole plots were obtained from studies on SBN and SBYN at different temperatures in the frequency range 50 Hz to 1 MHz. The activation energy values were computed. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"79 1","pages":"202 - 211"},"PeriodicalIF":1.2,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0371750x.2020.1801514","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45811771","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 of CoAl2O4/CuFe2O4/CeO2/TiO2 Ceramic Nanocomposite as a Catalyst for Selective Catalytic Reduction of NO by NH3: Influence of Synthesis Route NH3选择性催化还原NO的CoAl2O4/CuFe2O4/CeO2/TiO2纳米陶瓷复合材料的合成:合成路线的影响

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-10-01 DOI: 10.1080/0371750x.2020.1801516

A. Salehirad, Seyed Mahdi Latifi, Vahid Zabihi

{"title":"Synthesis of CoAl2O4/CuFe2O4/CeO2/TiO2 Ceramic Nanocomposite as a Catalyst for Selective Catalytic Reduction of NO by NH3: Influence of Synthesis Route","authors":"A. Salehirad, Seyed Mahdi Latifi, Vahid Zabihi","doi":"10.1080/0371750x.2020.1801516","DOIUrl":"https://doi.org/10.1080/0371750x.2020.1801516","url":null,"abstract":"ABSTRACT To investigate the effect of synthesis approach on the structural and catalytic properties, CoAl2O4/CuFe2O4/CeO2/Ti O2 ceramic nanocomposite was synthesized by four liquid phase routes: mixing of components in the liquid phase ( method 1), mixing of CoAl2O4 precursor with other components (method 2), mixing of CoAl2O4 and CuFe2O4 precursors with other components ( method 3) and mixing of Cu Fe2O4 precursor with other components (method 4). The catalytic activity of the synthesized nanocomposites was evaluated for the selective catalytic reduction of NO by NH3 (NH3-SCR). The characteristics, such as chemical composition, phase analysis, particle size distribution, specific surface area, average pore diameter, agglomeration degree, and surface acidity were comparatively studied for the synthesized ceramic nanocomposites. The results obtained from the structural studies and the NH3-SCR evaluation revealed that the nanocomposite fabricated by method 4 displayed the best structural properties and the highest catalytic activity among all the synthesized samples. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"79 1","pages":"196 - 201"},"PeriodicalIF":1.2,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0371750x.2020.1801516","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46402797","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

Effect of Curing Protocol on Mechanical Behavior of Green Ceramic Bodies Fabricated in Ceramic Microstereolithography 固化工艺对陶瓷微立体光刻绿色陶瓷体力学行为的影响

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-10-01 DOI: 10.1080/0371750x.2020.1821786

C. V. Adake, P. Gandhi, P. Bhargava

引用次数: 1

Microstructures and Properties of Carbon Fibers and in-situ Whiskers Reinforced Mullite-Based Castable Composites 碳纤维和原位晶须增强莫来石基浇注复合材料的组织与性能

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-10-01 DOI: 10.1080/0371750x.2020.1801515

Si Ouyang, Yuanbing Li, Shujing Li, Degang Ouyang, R. Xiang, N. Xu

{"title":"Microstructures and Properties of Carbon Fibers and in-situ Whiskers Reinforced Mullite-Based Castable Composites","authors":"Si Ouyang, Yuanbing Li, Shujing Li, Degang Ouyang, R. Xiang, N. Xu","doi":"10.1080/0371750x.2020.1801515","DOIUrl":"https://doi.org/10.1080/0371750x.2020.1801515","url":null,"abstract":"ABSTRACT With spalling and corrosion during thermal cycles, the castable composites used in injecting lance are easily damaged. In order to solve this problem, we used carbon fibers as additives in the matrix, and prepared mullite- based castables with the addition of anti-oxidant silicon. It was found that the addition of carbon fibers could significantly improve the mechanical properties; the maximum mechanical strength was obtained when 0.1 wt% carbon fibers was added, and the maximum thermal shock resistance was obtained when 0.2 wt% carbon fibers was added. The carbon fibers were oxidized mostly after firing at 1100oC, while after firing at 1450oC, due to the dense oxide layers generated on the surface of the castables, most of the carbon fibers in the castables remained in good combination with the matrix. Some SiC whiskers with SiO2 coating were formed in the matrix after heat treatment at 1100oC in air. The model of the whiskers growth mechanism followed the vapour-solid mechanism. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"79 1","pages":"182 - 187"},"PeriodicalIF":1.2,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0371750x.2020.1801515","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43927919","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

Interfacial and Cross-sectional Studies of Thermally Cycled Alumina-Monel Brazed Joint 热循环铝蒙乃尔钎焊接头的界面和截面研究

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-07-02 DOI: 10.1080/0371750X.2020.1787865

N. Dandapat, Sumana Ghosh

引用次数: 2

The Influence of Holding Time on Morphologies and Electrochemical Properties of MAO/LDH Composite Film on LA103Z Mg-Li Alloy 保温时间对LA103Z-Mg-Li合金MAO/LDH复合膜形貌及电化学性能的影响

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-07-02 DOI: 10.1080/0371750X.2020.1791734

Ju‐mei Zhang, Yang Zhang, Kai Wang, X. Duan, Cai Hui, Zhihu Wang

{"title":"The Influence of Holding Time on Morphologies and Electrochemical Properties of MAO/LDH Composite Film on LA103Z Mg-Li Alloy","authors":"Ju‐mei Zhang, Yang Zhang, Kai Wang, X. Duan, Cai Hui, Zhihu Wang","doi":"10.1080/0371750X.2020.1791734","DOIUrl":"https://doi.org/10.1080/0371750X.2020.1791734","url":null,"abstract":"In order to improve the corrosion resistance of magnesium-lithium (Mg-Li) alloy, a micro-arc oxidation (MAO) ceramic layer was first prepared on LA103Z Mg-Li alloy, and then the MAO coating on LA103Z Mg-Li alloy was sealed by layered double hydroxide (LDH) hydrothermal treatment. The obtained samples were subjected to immersion test in 3.5% NaCl solution for 8 days. The growth characteristics of different coatings before immersion were studied by XRD, SEM and EDS. Morphology and composition of the coatings were observed before and after corrosion. Electrochemical test of the composite film was performed to explore the corrosion resistance and influence of different time on corrosion resistance of MAO/LDH composite film. The results displayed that MAO/LDH composite film have the lowest corrosion current density, the most positive corrosion potential, can effectively protect the substrate from corrosion by NaCl solution, improved long-term corrosion protection, and can considerably improve the corrosion resistance of the alloy. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"79 1","pages":"166 - 171"},"PeriodicalIF":1.2,"publicationDate":"2020-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0371750X.2020.1791734","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45919254","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: 4

Comparative Analysis of Novel Calcium Phosphate Based Machinable Bioceramic Composites 新型磷酸钙基可加工生物陶瓷复合材料的对比分析

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-07-02 DOI: 10.1080/0371750x.2020.1773931

R. Ghosh, R. Sarkar

引用次数: 1

Electrical Studies on Bi4NdTi3Fe0.7Co0.3O15-Bi3NdTi2Fe0.7Co0.3O12–δ Intergrowth Aurivillius Ceramics Bi4NdTi3Fe0.7Co0.3O15-Bi3NdTi2Fe0.7Co0.30O12–δ互生长Aurivilius陶瓷的电学研究

IF 1.2 4区材料科学

Transactions of the Indian Ceramic Society Pub Date : 2020-07-02 DOI: 10.1080/0371750X.2020.1760139

Vadla Veenachary, E. Ramana, G. Kumar, G. Prasad, N. V. Prasad

{"title":"Electrical Studies on Bi4NdTi3Fe0.7Co0.3O15-Bi3NdTi2Fe0.7Co0.3O12–δ Intergrowth Aurivillius Ceramics","authors":"Vadla Veenachary, E. Ramana, G. Kumar, G. Prasad, N. V. Prasad","doi":"10.1080/0371750X.2020.1760139","DOIUrl":"https://doi.org/10.1080/0371750X.2020.1760139","url":null,"abstract":"ABSTRACT A promising Aurivillius layered pervoskite ceramics, namely, the title compound has drawn interest in recent days owing to its figure of merit (magnetoelectric coupled properties). General formula of the compound is expressed as (Bi2O2)2+(A n–1 B nO3n+ 1)2–, where A represents Bi/Nd and B represents Ti/Fe/Co. However, no reports are available on impedance measurement of this compound. In the present study, four-layered (Bi4NdTi3Fe0. 7Co0.3O15) and three-layered (Bi3NdTi2Fe0. 7Co0. 3O12– ) compounds were synthesized by solid state reaction method and an intergrowth ceramics of three-layered and four-layered compound (title compound) was prepared. XRD pattern confirmed the intergrowth compound as single phase eight-layered compound. Dielectric data of the compounds were recorded as function of temperature at various frequencies. The intergrowth sample showed high dielectric and remnant polarization (Pr) values. From the combined impedance spectroscopic and AC conductivity (σac) plots, the respond function was found to be frequency dependent, indicating the conduction process to be thermally activated. In the present study, an attempt was made to understand the inheriting dielectric relaxations, and the results were corroborated to the master (scaling) plots. GRAPHICAL ABSTRACT","PeriodicalId":23233,"journal":{"name":"Transactions of the Indian Ceramic Society","volume":"79 1","pages":"113 - 119"},"PeriodicalIF":1.2,"publicationDate":"2020-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0371750X.2020.1760139","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43117507","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