Procedia Materials Science最新文献_第6页

Performance Study f V2O5/TiO2 Mixed Metal Oxide Nanocatalysts in Selective Catalytic Reduction of Nox Prepared by Co-Precipitation Method 共沉淀法制备的V2O5/TiO2混合金属氧化物纳米催化剂选择性催化还原Nox的性能研究

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/J.MSPRO.2015.11.015

Hamid Soleimanzadeh, A. Niaei, D. Salari, S. Mousavi, A. Tarjamannejad

引用次数: 5

Microwave Assisted Synthesis of ZnO Tridimensional Nanostructures 微波辅助合成ZnO三维纳米结构

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.04.106

G. Barreto , G. Morales , A. Cañizo , N. Eyler

引用次数: 9

Electrospun Nanofibers of Conducting Polyaniline/Al-SnO2 Composites for Hydrogen Sensing Applications 导电聚苯胺/Al-SnO2复合材料的电纺丝纳米纤维氢传感应用☆

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.040

Hemlata J. Sharma, Dipti V. Jamkar, Subhash B. Kondawar

{"title":"Electrospun Nanofibers of Conducting Polyaniline/Al-SnO2 Composites for Hydrogen Sensing Applications","authors":"Hemlata J. Sharma, Dipti V. Jamkar, Subhash B. Kondawar","doi":"10.1016/j.mspro.2015.06.040","DOIUrl":"10.1016/j.mspro.2015.06.040","url":null,"abstract":"<div>In this paper, we report the synthesis and characterization of composites of polyaniline and aluminum doped tin oxide (Al-SnO2/PANI) nanofibers for hydrogen gas sensing application. Al-SnO2/PANI composite nanofibers have been fabricated via electrospinning technique and subsequent calcination procedure. The as-prepared Al-SnO2/PANI composite nanofibers were investigated for structural characterizations by means of SEM, FTIR, UV-VIS and XRD. SEM revealed the nanofibers with the diameter around 200-300nm formed a non-woven material with highly porous and agglomerated structure. FTIR and UV-VIS spectra revealed the possible incorporation of Al-SnO2 in PANI and confirmed the uniform attachment of PANI on the surface of Al-SnO2 nanostructures. XRD showed peak broadening and the peak positions shift from standard values, indicating presence of aluminum doped tin oxide in nanoparticles form in the polyaniline (PANI) matrix. On exposure to hydrogen gas (1000ppm), it was found that the nanofibers of Al-SnO2/PANI composite showed high sensitivity at 48 oC with relatively faster response/recovery as compared to pure SnO2 and Al doped SnO2 nanofibers.</div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"10 ","pages":"Pages 186-194"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.06.040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85408201","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: 27

Experimental Investigation of Jute FiberReinforcedNano Clay Composite 黄麻纤维增强纳米粘土复合材料的实验研究

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.046

K. Deepak, S.V. Prabhakar Vattikuti, B. Venkatesh

引用次数: 21

Ordering in the Solid Solution U(Al,Si)3 固溶体U(Al,Si)的排序

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.04.030

P.H. Gargano , P.R. Alonso , G.H. Rubiolo

引用次数: 4

Effect of Blast Furnace Slag on Mechanical Properties of Glass Fiber Polymer Composites 高炉渣对玻璃纤维聚合物复合材料力学性能的影响

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.045

A.V. Pradeep

引用次数: 11

Thermal Cycles and Residual Stresses in FSW of Aluminum Alloys: Experimental Measurements and Numerical Models 铝合金摩擦摩擦摩擦中的热循环和残余应力:实验测量和数值模型

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.04.011

Luciano Buglioni , Leonardo N. Tufaro , Hernán G. Svoboda

{"title":"Thermal Cycles and Residual Stresses in FSW of Aluminum Alloys: Experimental Measurements and Numerical Models","authors":"Luciano Buglioni , Leonardo N. Tufaro , Hernán G. Svoboda","doi":"10.1016/j.mspro.2015.04.011","DOIUrl":"10.1016/j.mspro.2015.04.011","url":null,"abstract":"<div>In the present work longitudinal residual stresses obtained by different methods, numerical and experimental, in Friction Stir Welding (FSW) process for AA7075 were analyzed. The experimental method employed for residual stresses measurements was sectioning, whereas the numerical is a finite element (FEM) thermomechanical coupled model which does not consider the stir in the material. The effect of travel speed during FSW was also analyzed, measuring with strain gages positioned in several points at different distances from weld centerline. From the obtained residual strains, the stress values, stress variation against weld centerline distance and null stress point were calculated. Numerical and experimental stress values agree in order of magnitude, being greater in numerical method inside stir zone's edge and even outside, and smaller at some point towards the end of plate. Stress variation against weld centerline distance and null stress position vary in different ways for each method. This phenomenon agrees with another works, and it could be related with no consideration of the stir process in the numerical method. Thus, it has been developed a simplified finite element model which averages in magnitude experimental residual stress in FSW.</div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"9 ","pages":"Pages 87-96"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.04.011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80313710","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

Scope of Nanotechnology in Radiation Treatment Planning 纳米技术在放射治疗计划中的应用范围

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.06.012

S.P. Kishore , N.V.S.L. Narasimham , A. Ramakrishna Prasad

引用次数: 0

Metal/oxide Composites: Mechanisms of the Formation from the Thermal Decomposition of LaNi5☆ 金属/氧化物复合材料:LaNi5☆热分解形成机理

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/J.MSPRO.2015.04.174

F. Torresan, L. Mogni, M. Esquivel

引用次数: 3

Additive Synthesis by Sol-gel Method for its Use as Antimicrobial 溶胶-凝胶法制备抗微生物添加剂

Procedia Materials Science Pub Date : 2015-01-01 DOI: 10.1016/j.mspro.2015.04.090

Romina Arreche, Florencia Hernández, Mirta Blanco, Patricia Vázquez

{"title":"Additive Synthesis by Sol-gel Method for its Use as Antimicrobial","authors":"Romina Arreche, Florencia Hernández, Mirta Blanco, Patricia Vázquez","doi":"10.1016/j.mspro.2015.04.090","DOIUrl":"10.1016/j.mspro.2015.04.090","url":null,"abstract":"<div>The antimicrobial activity of silver nanoparticles makes this chemical element attractive for their incorporation in different materials. Additionally, heteropolyacids (HPAs) have advantages as catalysts which make them environmentally very interesting. The objective of this work is to incorporate in a silica matrix obtained by sol-gel an HPA together with Ag, for their use as fillers in paints or adhesives. Six samples were synthesized, using tetraethoxysilane, methyltrimethoxysilane, acetic acid, molybdophosphoric acid and silver acetate. The silicas were characterized by potentiometric titration, XRD, SEM, TEM, SBET and FT-IR. When HPA is used instead of acetic acid, a variation on the final acidity is produced. The specific surface area decreases when HPA is incorporated into the silica synthesized using tetraethoxysilane as precursor, noticing a slight increase when Ag is added because a different distribution of HPA in the matrix. By SEM, it was observed that the particle size is bigger when the silicas are synthesized with TEOS-HPA, but it still shows the characteristic morphology of bulk silica. Additionally, preliminary test to evaluate the antimicrobial properties of the solids were carried out with fungi as Chaetomium globosum and Alternaria alternate, isolated from contaminated paints, and the first results are encouraging to continue with the development of these materials.</div>","PeriodicalId":101041,"journal":{"name":"Procedia Materials Science","volume":"8 ","pages":"Pages 397-405"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mspro.2015.04.090","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82289767","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: 5