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International Journal of Microstructure and Materials Properties最新文献

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Durability evaluation modelling of rebar Al2O3 nano-particles epoxy coating 钢筋Al2O3纳米颗粒环氧涂层耐久性评价模型
International Journal of Microstructure and Materials Properties Pub Date : 2020-01-01 DOI: 10.1504/ijmmp.2020.10044930
Yali Li, Huina Jia
{"title":"Durability evaluation modelling of rebar Al2O3 nano-particles epoxy coating","authors":"Yali Li, Huina Jia","doi":"10.1504/ijmmp.2020.10044930","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.10044930","url":null,"abstract":"","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66748754","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: 0
Influence of process variables on fracture behaviours of AA7075/AA6101 friction stir welded joints 工艺变量对AA7075/AA6101搅拌摩擦焊接接头断裂行为的影响
International Journal of Microstructure and Materials Properties Pub Date : 2020-01-01 DOI: 10.1504/ijmmp.2020.10032817
G. Swaminathan, S. Kumar, S. Sathiyamurthy, A. Mathivanan
{"title":"Influence of process variables on fracture behaviours of AA7075/AA6101 friction stir welded joints","authors":"G. Swaminathan, S. Kumar, S. Sathiyamurthy, A. Mathivanan","doi":"10.1504/ijmmp.2020.10032817","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.10032817","url":null,"abstract":"","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66748625","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: 0
Thermomechanical interactions due to time harmonic sources in a transversely isotropic magneto thermoelastic solids with rotation 具有旋转的横向各向同性磁热弹性固体中时间谐波源的热力学相互作用
International Journal of Microstructure and Materials Properties Pub Date : 2019-10-17 DOI: 10.1504/ijmmp.2019.10024754
P. Lata, Iqbal Kaur
{"title":"Thermomechanical interactions due to time harmonic sources in a transversely isotropic magneto thermoelastic solids with rotation","authors":"P. Lata, Iqbal Kaur","doi":"10.1504/ijmmp.2019.10024754","DOIUrl":"https://doi.org/10.1504/ijmmp.2019.10024754","url":null,"abstract":"The present research deals in two dimensional transversely isotropic magneto thermoelastic solid with rotation due to time-harmonic source in generalised Lord-Shulman (LS) theory of thermoelasticity. The Fourier transform has been used to find a solution to the problem. The displacements components, stress components, and conductive temperature distribution with the horizontal distance in the physical domain are calculated numerically. The effect of rotation and various frequencies with two temperature (WTT) are depicted graphically on the resulting quantities. The proposed model is helpful for finding the type of relations between mechanical and thermal fields as most of the structural elements of heavy industries are frequently related to mechanical and thermal stresses at a higher temperature.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45780575","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: 6
Structural, Thermal and Electrical Properties of Ionic Conductors (AgPO3)1-x(Ag2SO4)x Glass Systems 离子导体(AgPO3)1-x(Ag2SO4)x玻璃体系的结构、热学和电学性能
International Journal of Microstructure and Materials Properties Pub Date : 2019-10-17 DOI: 10.1504/ijmmp.2019.10024521
F. Salman, Atif Alkhazali, Hesham Al Momani, M. Aljarrah, Morad Etier
{"title":"Structural, Thermal and Electrical Properties of Ionic Conductors (AgPO3)1-x(Ag2SO4)x Glass Systems","authors":"F. Salman, Atif Alkhazali, Hesham Al Momani, M. Aljarrah, Morad Etier","doi":"10.1504/ijmmp.2019.10024521","DOIUrl":"https://doi.org/10.1504/ijmmp.2019.10024521","url":null,"abstract":"This study aims to investigate the effect of temperature and frequency on the ac conductivity of ion conducting glasses systems of (AgPO3)1-x(Ag2SO4)x, where x = 0.00, 0.10, 0.15, 0.20 and 0.25. Structural characterisation was examined in different samples using different techniques. At lower frequency range, the frequency dependence of the total conductivity was nearly constant and then followed a power relation as frequency and temperature increased. The observed values of the exponent S were somehow frequency-dependent and decreased with increasing temperature from 1.3 to 0.2 for the composition when x = 0.15. The cutoff frequency from dc to the dispersive region, ωc, increased with temperature. In addition, ωc values were within the same range as other values. Total conductivity σtot(ω) was found to be thermally activated of the Arrhenius type.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48578036","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: 3
Simulation analysis of intake transition section steel lining for hydropower station penstock 水电站进水口过渡段钢衬的仿真分析
International Journal of Microstructure and Materials Properties Pub Date : 2019-10-17 DOI: 10.1504/ijmmp.2019.10024755
W. Ma, Q. Guo, Yong Zeng
{"title":"Simulation analysis of intake transition section steel lining for hydropower station penstock","authors":"W. Ma, Q. Guo, Yong Zeng","doi":"10.1504/ijmmp.2019.10024755","DOIUrl":"https://doi.org/10.1504/ijmmp.2019.10024755","url":null,"abstract":"To improve the bending stiffness of steel plate structure, anchor bars and stiffeners are used to anchor the thin steel plate in the intake transition section in the concrete. In this paper, the finite element method is used to simulate the steel lining at the penstock intake transition section of hydropower station. The analysis results show that, the overall deformation of steel lining structure is small, which can meet the requirement of stiffness, the stress of steel lining structure is complex, the stress concentration at the stiffening ring is very high, the stress value of other parts is low, and the general stress value does not exceed 43.0 MPa, and the stress distribution is more uniform. The structural stress value of dam in the gate section is relatively low, through conventional reinforcement can meet the design requirements.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43705121","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: 0
Comparison of texture evolution in low carbon steel fabricated by plane strain and multi-directional forging of the martensite starting structure 马氏体起始组织平面应变和多向锻造低碳钢组织演变的比较
International Journal of Microstructure and Materials Properties Pub Date : 2019-10-16 DOI: 10.1504/IJMMP.2019.10022997
Mahdi Saalari
{"title":"Comparison of texture evolution in low carbon steel fabricated by plane strain and multi-directional forging of the martensite starting structure","authors":"Mahdi Saalari","doi":"10.1504/IJMMP.2019.10022997","DOIUrl":"https://doi.org/10.1504/IJMMP.2019.10022997","url":null,"abstract":"It has been clarified that deformation and annealing of martensite starting structure can produce ultrafine grained structure in low carbon steel. This study aims to investigate the texture evolution and mechanical properties of samples with martensite structure deformed by two different forging processes. The martensitic steel samples were forged by plane strain compression and multi-directional forging up to the same true strain of 2. All samples were then annealed at 450 and 550°C for 30 min. It was found that the active slip systems in BCT crystalline structure of martensite acted like ferrite steel. After multi-directional forging of martensitic steel, the yield and ultimate strength greatly increased to 1278 and 1658 MPa, respectively. During annealing, in the plane strain compressed sample, the 'oriented nucleation' and in the multi-directional forged specimen, 'selective growth' theory was dominant.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41644277","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: 1
Asymmetric Gated Ge-Si0.7Ge0.3 nHTFET and pHTFET for Steep Subthreshold Characteristics 陡峭亚阈值特性的非对称门控Ge-Si0.7Ge0.3 nHTFET和pHTFET
International Journal of Microstructure and Materials Properties Pub Date : 2019-10-16 DOI: 10.1504/IJMMP.2019.10022985
S. Tripathi, Sobhit Saxena
{"title":"Asymmetric Gated Ge-Si0.7Ge0.3 nHTFET and pHTFET for Steep Subthreshold Characteristics","authors":"S. Tripathi, Sobhit Saxena","doi":"10.1504/IJMMP.2019.10022985","DOIUrl":"https://doi.org/10.1504/IJMMP.2019.10022985","url":null,"abstract":"The miniaturisation of transistors imposes thermal limits on MOSFET structures due to increase in leakage current and static power consumption per unit area of chip below 20 nm technology node. Tunnel FET has potential to reduce static power consumption to design below 20 nm technology within thermal limits thus increases the scope of future scaling trends. A new asymmetric Ge-Si0.7Ge0.3 hetero-junction tunnel FET (HTFET) is proposed with different oxide thickness from source and drain side. The asymmetric Ge-Si0.7Ge0.3 HTFET has steep subthreshold characteristic, low DIBL with high ION/IOFF current ratio for operating voltage less than 1V. The proposed design can be fabricated easily due to the similar lattice structure of Ge and Si. The ION/IOFF current ratio greater than 108 is achieved for gate length of 15 nm in nHTFET having Pt/HfO2 as gate contact and oxide material. The lowering of parasitic BJT effect in OFF state condition is also achieved in the same.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45289093","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: 7
Modelling and simulation of a bending process for S34MnV steel S34MnV钢弯曲过程的建模与仿真
International Journal of Microstructure and Materials Properties Pub Date : 2019-08-20 DOI: 10.1504/IJMMP.2019.10023372
Zhiqiang Hu, Kaikun Wang, Yan Yang
{"title":"Modelling and simulation of a bending process for S34MnV steel","authors":"Zhiqiang Hu, Kaikun Wang, Yan Yang","doi":"10.1504/IJMMP.2019.10023372","DOIUrl":"https://doi.org/10.1504/IJMMP.2019.10023372","url":null,"abstract":"To investigate the hot deformation behaviour of S34MnV steel, hot compression tests in different deformation conditions were done. According to the experimental data, a constitutive equation was established and a mathematical model for dynamic recrystallisation was established to predict the volume fraction of dynamic recrystallisation. To reveal the plastic deformation, the bending process for a large S34MnV marine crank was simulated by Deform-3D. The stress and strain field of the bending process was obtained and analysed based on the simulation. Finally, to study the effect of the bending process on the crank, a bending process of a crank produced with a hydropress in the factory was studied. The microstructure and mechanical properties in three different positions of the bending crank were analysed. It was concluded that the bending process would reduce the uniformity of the microstructure and mechanical properties, owing to the nonuniformity of the deformation.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43481463","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: 0
Micro-structural and Interfacial Transition Zone investigation on Oil Palm Shell lightweight concrete. 油棕壳轻质混凝土的微观结构和界面过渡区研究。
International Journal of Microstructure and Materials Properties Pub Date : 2019-08-20 DOI: 10.1504/IJMMP.2019.10021545
M. Krishnamurthy, S. Vandanapu
{"title":"Micro-structural and Interfacial Transition Zone investigation on Oil Palm Shell lightweight concrete.","authors":"M. Krishnamurthy, S. Vandanapu","doi":"10.1504/IJMMP.2019.10021545","DOIUrl":"https://doi.org/10.1504/IJMMP.2019.10021545","url":null,"abstract":"Oil palm shell (OPS) aggregates can be used as a replacement of coarse aggregate in concrete to produce lightweight concrete. OPS is found to absorb more water compared to normal aggregate. Hence, surface treatment is carried out on OPS and the effect of water cement ratio on strength of concrete is investigated. This paper presents X-ray diffraction analysis carried out for treated and non-treated OPS (NTOPS) aggregate to find the mineralogical characteristics. Microstructural analysis and interfacial transition zone is investigated for treated and NTOPS using digital image processing or digital microscope. The results of investigation is compared with conventional concrete.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46693909","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: 8
Effect of deposition temperature on structural, optical and electrical properties of chemically deposited thermochromic Cu2HgI4 thin films 沉积温度对化学沉积热致变色Cu2HgI4薄膜结构、光学和电学性能的影响
International Journal of Microstructure and Materials Properties Pub Date : 2019-08-20 DOI: 10.1504/IJMMP.2019.10023373
A. M. Mansour, I. M. Radaf, G. M. Mahmoud
{"title":"Effect of deposition temperature on structural, optical and electrical properties of chemically deposited thermochromic Cu2HgI4 thin films","authors":"A. M. Mansour, I. M. Radaf, G. M. Mahmoud","doi":"10.1504/IJMMP.2019.10023373","DOIUrl":"https://doi.org/10.1504/IJMMP.2019.10023373","url":null,"abstract":"Copper mercury tetraiodide thin films were grown by the chemical bath deposition technique at different deposition temperatures varying from 300 K to 345 K. The structural properties of the prepared Cu2HgI4 thin films show that the Cu2HgI4 films have a polycrystalline nature. The compositional analysis confirmed the nearly stoichiometric structure of the deposited Cu2HgI4 thin films. Homogeneous and regular surface morphology, including of circular-shaped grains with a size range from 31 to 46 nm, was revealed. Thermal stability and phase transition were studied by means of thermogravimetric analysis (TGA) and differential thermal analysis (DSC), respectively. The effects of deposition temperature on the optical properties and D.C. electrical conductivity of the Cu2HgI4 films have been studied. The films were found to have an indirect optical energy gap of values increases with increasing substrate temperature. The electrical conductivity increases with increasing temperature according to grain boundary trapping model.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43451152","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: 9
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