发布求助
文献互助 智能选刊 最新文献

Procedia Materials Science最新文献

筛选
英文 中文
Synthesis, Characterization and Electrical Properties of a Composite of Topological Insulating Material: Bi2Te3-PANI 拓扑绝缘材料Bi2Te3-PANI☆的合成、表征及电性能
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.042
R.R. Urkude , P.T. Patil , S.B. Kondawar , U.A. Palikundwar
{"title":"Synthesis, Characterization and Electrical Properties of a Composite of Topological Insulating Material: Bi2Te3-PANI","authors":"R.R. Urkude ,&nbsp;P.T. Patil ,&nbsp;S.B. Kondawar ,&nbsp;U.A. Palikundwar","doi":"10.1016/j.mspro.2015.06.042","DOIUrl":"10.1016/j.mspro.2015.06.042","url":null,"abstract":"<div><p>In the present work, we carried out a systematic study of structure, UV-Vis Spectra and surface conductivity of pure Bi<sub>2</sub>Te<sub>3</sub>, pure Polyaniline (PANI) and Bi<sub>2</sub>Te<sub>3</sub> (5%)-PANI (95%) composite. Bi<sub>2</sub>Te<sub>3</sub> was synthesized by a method similar to solvothermal method, whereas, pure PANI and Bi<sub>2</sub>Te<sub>3</sub>-PANI composite were synthesized by a chemical oxidative method. The materials were structurally characterized and the electrical properties were investigated in the temperature range from room temperature to 100<!--> <!-->°C. The electrical conductivity of the Bi<sub>2</sub>Te<sub>3</sub>-PANI composite is found to be higher than that of its pure constituents at all the temperatures. The enhancement in the surface conductivity may be due to the PANI generated ordered molecular arrangement of Bi<sub>2</sub>Te<sub>3</sub> in the Bi<sub>2</sub>Te<sub>3</sub>-PANI composite, as confirmed from powder x-ray diffraction, UV–vis spectral analysis.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"10 ","pages":"Pages 205-211"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.06.042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87356535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Microwave-assisted Synthesis of Zinc Oxide Nanoparticles 微波辅助合成氧化锌纳米颗粒
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.11.101
M. Hasanpoor, M. Aliofkhazraei, H. Delavari
{"title":"Microwave-assisted Synthesis of Zinc Oxide Nanoparticles","authors":"M. Hasanpoor,&nbsp;M. Aliofkhazraei,&nbsp;H. Delavari","doi":"10.1016/j.mspro.2015.11.101","DOIUrl":"10.1016/j.mspro.2015.11.101","url":null,"abstract":"<div><p>Synthesis of nanoparticles and ultrafine particles of zinc oxide with controlled morphology using microwave irradiation is carried out by various methods. The effect of type of precursor as well as the time and the microwave irradiation power on the structure and size of ZnO nanoparticles have been studied. Particles Studied by SEM, TEM images and XRD analyze. By increasing the time of synthesis from 10 to 15<!--> <!-->minutes needle-shaped particles with a diameter of 50-150<!--> <!-->nm can be achieved. While increasing the microwave power from 540 to 680 watts, flower-shaped particles are obtained. By replacing zinc nitrate with zinc acetate, at different power and time of irradiation, needle-shaped particles are obtained and diameter of needles is decreased.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"11 ","pages":"Pages 320-325"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.11.101","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84733258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 151
Design and Implementation of a Low-Power, High-Speed Comparator 一种低功耗高速比较器的设计与实现
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.061
V. Deepika, Sangeeta Singh
{"title":"Design and Implementation of a Low-Power, High-Speed Comparator","authors":"V. Deepika,&nbsp;Sangeeta Singh","doi":"10.1016/j.mspro.2015.06.061","DOIUrl":"10.1016/j.mspro.2015.06.061","url":null,"abstract":"<div><p>In the existing world, where demand for portable battery operated devices is increasing, a major push is given towards low power methodologies for high speed applications. Symmetric circuits with regenerative feedback give opportunity to identify new structures that may be particularly useful. Regenerative feedback is usually used in Dynamic Comparators and rarely in non-clocked comparators. Dynamic Comparators are generally used in the design of high-speed Analog to Digital Converters and can easily be designed. The existing comparator requires high accuracy timing Clkb, maximum drive current and high power. To overcome the disadvantages of the existing comparator a new dynamic comparator has been proposed in this paper that uses low power and has less delay. For the performance verification, the design is simulated in Cadence gpdk 180<!--> <!-->nm Technology at 1.8 Voltage Supply. Post Layout Simulation results in 180<!--> <!-->nm CMOS technology shows that power consumption is reduced by 58% and delay time is reduced by 41%.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"10 ","pages":"Pages 314-322"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.06.061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79673524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Evaluation of Mechanical Properties and Structure of 1100-Al Reinforced with Zro2 Nano-particles via Accumulatively Roll-bonded Zro2纳米颗粒累积滚接增强1100-Al的力学性能和结构评价
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.11.094
A. Salimi, E. Borhani, E. Emadoddin
{"title":"Evaluation of Mechanical Properties and Structure of 1100-Al Reinforced with Zro2 Nano-particles via Accumulatively Roll-bonded","authors":"A. Salimi,&nbsp;E. Borhani,&nbsp;E. Emadoddin","doi":"10.1016/j.mspro.2015.11.094","DOIUrl":"10.1016/j.mspro.2015.11.094","url":null,"abstract":"<div><p>In this study, aluminium metal composites reinforced with Zirconium dioxide (ZrO<sub>2</sub>) nano-particles in different of volume percentage are manufactured through accumulative roll bonding. The results indicate that with the application of 10 ARB cycles and the composite microstructure shows excellent ZrO<sub>2</sub> particle distribution in the Al matrices. The X-ray diffraction results also showed that nanostructured Al/ZrO<sub>2</sub> Nanocomposite with the average crystallite size of 48.6<!--> <!-->nm was successfully achieved by employing 10 cycles of ARB process. According to the results of this study, the tensile, hardness, and elongation properties of the Al/ZrO<sub>2</sub> composite are determined for 0.50, 0.75 and 1 vol.% ZrO<sub>2</sub>.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"11 ","pages":"Pages 67-73"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.11.094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90653837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Synthesizing of Nanostructured Fe-Mn Alloys by Mechanical Alloying Process 机械合金化法制备纳米结构Fe-Mn合金
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.11.134
N. Safaie , M. Khakbiz , S. Sheibani , P. Sotoudeh Bagha
{"title":"Synthesizing of Nanostructured Fe-Mn Alloys by Mechanical Alloying Process","authors":"N. Safaie ,&nbsp;M. Khakbiz ,&nbsp;S. Sheibani ,&nbsp;P. Sotoudeh Bagha","doi":"10.1016/j.mspro.2015.11.134","DOIUrl":"10.1016/j.mspro.2015.11.134","url":null,"abstract":"<div><p>In the present study, nanostructured Fe-30<!--> <!-->wt.% Mn alloys produced by mechanical alloying of Fe and Mn powders mixture. The phase composition and morphology of nanostructured powder were analyzed by X-ray diffraction and scanning electron microscopy. It was found that by milling time up to 10<!--> <!-->h, crystallite size was decreased to 6<!--> <!-->nm, on the contrary lattice strain was increased. Solid solubility levels were determined from changes in the lattice parameter values. The lattice parameter increases slightly from 0.28167 to 0.35776<!--> <!-->nm. Increasing milling intensity by higher ball to powder mass ratio resulted in Fe-Mn alloy formation with smaller crystallite size. The SEM results showed that, plate like particles were formed in initial milling time and particles morphology was changed to equiaxed form in final stage of milling process.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"11 ","pages":"Pages 381-385"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.11.134","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90702732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
A New Method for Measuring the Thermal Insulation Properties of Fibrous Silica Aerogel Composite 一种测量纤维二氧化硅气凝胶复合材料隔热性能的新方法
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/J.MSPRO.2015.11.081
Z. T. Mazraeh-shahi, A. M. Shoushtari, A. Bahramian
{"title":"A New Method for Measuring the Thermal Insulation Properties of Fibrous Silica Aerogel Composite","authors":"Z. T. Mazraeh-shahi, A. M. Shoushtari, A. Bahramian","doi":"10.1016/J.MSPRO.2015.11.081","DOIUrl":"https://doi.org/10.1016/J.MSPRO.2015.11.081","url":null,"abstract":"","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"7 1","pages":"583-587"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89492845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Experimental Studies on Void Fraction Measurement on Air-Lift Loop with Multiple Risers 多立管气升回路空隙率测量的实验研究
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.084
G.K. Pujari , N.M. Rao , Avssk Gupta Dr. , B.B. Mallikarjuna
{"title":"Experimental Studies on Void Fraction Measurement on Air-Lift Loop with Multiple Risers","authors":"G.K. Pujari ,&nbsp;N.M. Rao ,&nbsp;Avssk Gupta Dr. ,&nbsp;B.B. Mallikarjuna","doi":"10.1016/j.mspro.2015.06.084","DOIUrl":"10.1016/j.mspro.2015.06.084","url":null,"abstract":"<div><p>Online, continuous two phase flow measurements is often necessary for analysis of the two phase flow particularly in oil and gas, nuclear energy and chemical processing industries. Reliable measurements of void fraction and flow pattern identification are important for accurate modeling of two phase systems. Void fraction is one of the most important parameters used to characterize two-phase flows. It is the key physical value for determining numerous other important parameters, such as the two-phase density and the two-phase viscosity, for obtaining the relative average velocity of the two phases and is of fundamental importance in models for predicting the flow pattern transitions, heat transfer and pressure drop. Experiments are performed in atmospheric vertical air-water flows for void fraction measurement between the pipe size of 12.5<!--> <!-->mm diameter to 4.5<!--> <!-->mm diameter to emphasize on developing the measuring techniques of two-phase flow void fraction by using ‘Conducting probe circuit’ which uses a ‘needle probe’ for measurement of void fraction in an air lift loop. The process involves the immersion of probe tip in two phase mixture in order to detect the two phases instantaneously present at the tip and the corresponding readings for the measurement of void fraction are obtained from the processing circuit.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"10 ","pages":"Pages 476-488"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.06.084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89863732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Investigation On ILSS Properties of Unidirectional Glass Fibre / Alumina Nanoparticles Filled Epoxy Nanocomposite At Different Angles Of Fibre Orientations 不同纤维取向角度下单向玻璃纤维/氧化铝纳米颗粒填充环氧纳米复合材料ILSS性能的研究
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.006
M. Rajanish, N.V. Nanjundaradhya, Ramesh S. Sharma
{"title":"An Investigation On ILSS Properties of Unidirectional Glass Fibre / Alumina Nanoparticles Filled Epoxy Nanocomposite At Different Angles Of Fibre Orientations","authors":"M. Rajanish,&nbsp;N.V. Nanjundaradhya,&nbsp;Ramesh S. Sharma","doi":"10.1016/j.mspro.2015.06.006","DOIUrl":"10.1016/j.mspro.2015.06.006","url":null,"abstract":"<div><p>Interlaminar shear properties of the fibre reinforced polymer composites are very important in many structured applications. Interlaminar shear strength (ILSS) of a unidirectional fibre reinforced polymer composite laminate is usually a limiting design characteristic. And also it has been reported that, the interlaminar shear strength of fibre reinforced polymer composites may be improved by the modification of the matrix. In this paper, diglycidyl ether of bisphenol A (DGEBA) / triethylene tetramine (TETA) system is used as the epoxy matrix. Alumina nanoparticles are employed to modify the epoxy matrix at various concentrations. Unmodified and modified epoxy resins are used along with unidirectional glass fibres for fabricating composite laminates by vacuum bagging process. The interlaminar shear strength of the glass fibre reinforced composites at different orientation of the laminate is investigated and the results indicate that introduction of the alumina nanoparticles up to 0.8 wt%, enhances the ILSS in all the direction of fibres, while addition up to 1.2 wt% decreases the ILSS. Also, the percentage of enhancement in the ILSS is found to be altered in different direction of fibre orientation. In particular, the addition of 0.8 wt% alumina nanoparticles leads to the 2.07%, 8.71% and 18.02% increase in the ILSS for the composite in the direction of 0<sup>o</sup>, 45<sup>o</sup> and 90<sup>o</sup> fibre orientation respectively. These phenomena are explained in terms of agglomeration of nanoparticles and dominant properties of fibres and matrix in different angles of fibre orientations.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"10 ","pages":"Pages 555-562"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.06.006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73478582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Effect of Nanohydroxyapatite Addition on the Pore Morphology and Mechanical Properties of Freeze Cast Hydroxyapatite Scaffolds 纳米羟基磷灰石添加对冷冻铸造羟基磷灰石支架孔隙形态和力学性能的影响
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.11.102
Z. Kaviani , A. Zamanian
{"title":"Effect of Nanohydroxyapatite Addition on the Pore Morphology and Mechanical Properties of Freeze Cast Hydroxyapatite Scaffolds","authors":"Z. Kaviani ,&nbsp;A. Zamanian","doi":"10.1016/j.mspro.2015.11.102","DOIUrl":"10.1016/j.mspro.2015.11.102","url":null,"abstract":"<div><p>In current study, the effect of nanohydroxyapatite (nHA) content on microstructural and mechanical properties of hydroxyapatite scaffolds fabricated using the water-based freeze casting method has been investigated. In the experimental procedure, the solidified samples were prepared by hydroxyapatite slurries containing different concentration of nHA followed by sintering procedure at 1350<!--> <!-->°C. The characteristics of the initial powders, microstructure, and mechanical strength of the scaffolds were assessed by X-ray diffraction, scanning electron microscopy, and mechanical strength test, respectively. The results showed that, increasing of nHA leading to decrease in pore size, increase in inter structural bridges, reduce in porosity and increase in compressive strength of the hydroxyapatite scaffolds, which is believed to be more effective in bone tissue engineering applications.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"11 ","pages":"Pages 190-195"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.11.102","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76739739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Micro Scale Investigation of Enhanced Oil Recovery Using Nano/Bio Materials 纳米/生物材料提高原油采收率的微观研究
Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.11.069
R. Khademolhosseini, A. Jafari, M.H. Shabani
{"title":"Micro Scale Investigation of Enhanced Oil Recovery Using Nano/Bio Materials","authors":"R. Khademolhosseini,&nbsp;A. Jafari,&nbsp;M.H. Shabani","doi":"10.1016/j.mspro.2015.11.069","DOIUrl":"10.1016/j.mspro.2015.11.069","url":null,"abstract":"<div><p>Recently application of nano/bio materials for enhanced oil recovery (EOR) has been examined by few researchers, but there exists ambiguous concepts about simultaneous injection of nanoparticles/biomaterials. Therefore, in this study the heavy oil displacement mechanisms using simultaneous injection of nanosilica/biosurfactant have been investigated in a glass micromodel. In order to better illustrate the influence of nano/bio material different flooding scenarios containing distilled water, nanosilica/distilled water, biosurfactant/distilled water and nanosilica/biosurfactant/distilled water have been conducted. Experimental results indicate that simultaneous presence of nanoparticles and bioproducts have synergy on each other and because of IFT reduction, improving the mobility ratio and increasing the injected fluid viscosity; the oil recovery can be achieved about 58%. Furthermore, nanoparticles can play as an inhibitor to avoid asphaltene precipitation.</p></div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"11 ","pages":"Pages 171-175"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.11.069","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78230882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信