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International Journal of Microstructure and Materials Properties最新文献

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Synthesis and characterisation of E-glass based composites with different fillers for defence automotive applications 国防汽车用不同填料e -玻璃基复合材料的合成与表征
International Journal of Microstructure and Materials Properties Pub Date : 2020-10-12 DOI: 10.1504/ijmmp.2020.10032808
M. Sinha, R. Tyagi
{"title":"Synthesis and characterisation of E-glass based composites with different fillers for defence automotive applications","authors":"M. Sinha, R. Tyagi","doi":"10.1504/ijmmp.2020.10032808","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.10032808","url":null,"abstract":"The fibre composites are special materials consisting of unique properties such as high specific strength, high specific stiffness, corrosion resistance, high fatigue life etc. They have immense potential to replace the traditionally utilised materials, steel and aluminium for manufacturing of various components of vehicles which renders them very heavy and bulky. This paper demonstrates the feasibility of producing innovative alternative lighter composite materials using E-glass for increasing the safety, movability, performance of the military vehicles. Five different composites were synthesis without fillers and with 4% ZnO, SiO, carbon black and hybrid fillers using hand layup technique. Various mechanical tests such as tension, compression, flexural, inter laminar shear, impact and hardness test were performed on the composites to evaluate and analyse their mechanical properties for exploration of their effective utilisation in automobiles. The study determined that the composite with ZnO filler manifested superlative behaviour in comparison to other materials under examination.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42355137","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 carbon doping on the thermoluminescence properties of LaAlO3 crystal grown by solid state reaction method 碳掺杂对固态反应生长LaAlO3晶体热释光性能的影响
International Journal of Microstructure and Materials Properties Pub Date : 2020-04-23 DOI: 10.1504/ijmmp.2020.106925
A. Azaiz, A. Kadari, N. Alves, L. O. Faria
{"title":"Influence of carbon doping on the thermoluminescence properties of LaAlO3 crystal grown by solid state reaction method","authors":"A. Azaiz, A. Kadari, N. Alves, L. O. Faria","doi":"10.1504/ijmmp.2020.106925","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.106925","url":null,"abstract":"In this paper, we report a modelling investigation of the thermoluminescence mechanisms for the important dosimetric LaAlO3:C crystals, which were grown by solid state reaction method. The aim of this work is to develop for the first time an algorithm that permits the numerical solution of the relevant sets of differential equations governing the different stages of the experimental procedure. The glow curve measured at 10K/s typically consists of three prominent peaks at 417 K, 494 K and 549 K and a minor glow peak at around 372 K. In this work, we show that this TL output behaviour can rather easily be explained within the framework of the 4T1R model. Good agreement between the experimental data and calculations from the model is obtained for this kind of dosimetric material. Results presented here confirm that the LaAlO3:C system an excellent candidate that can be used as a TL dosimeter in UV fields.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmmp.2020.106925","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41605076","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
Structural, thermal and electrical properties of polypyrrole filled with ternary oxide cerium aluminate 三元氧化铝酸铈填充聚吡咯的结构、热学和电学性能
International Journal of Microstructure and Materials Properties Pub Date : 2020-04-23 DOI: 10.1504/ijmmp.2020.106924
S. Ananda, M. Murugendrappa
{"title":"Structural, thermal and electrical properties of polypyrrole filled with ternary oxide cerium aluminate","authors":"S. Ananda, M. Murugendrappa","doi":"10.1504/ijmmp.2020.106924","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.106924","url":null,"abstract":"The effect of dispersion of fillers in different weight percentages on structural, electrical, and humidity sensing properties of polymer matrix has been investigated. Cerium-aluminate (ACO) was used as the filler material in the polypyrrole (PPy), and the dispersion of the filler was done by an in-situ chemical-polymerisation method. The nanocomposites were characterised by various techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDAX), Fourier transform infrared (FTIR) and thermogravimetry/differential thermal analysis (TG/DTA). The room temperature electrical characterisations were carried out which showed that the lower (10 wt.% and 20 wt.%) and higher (30 wt.%, 40 wt.% and 50 wt.%) filler contents in nanocomposites make them behave like dielectrics and conductors respectively. The AC-conductivity of the PPy was decreased for 10 and 20 wt.% whereas increased for the higher wt.%. The humidity response was studied by using an impedance-analyser, which shows the improvement in sensing properties.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmmp.2020.106924","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43540162","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
Study of structural and electrical properties of polycrystalline Pb(Cd1/3Ti1/3W1/3)O3 tungsten perovskite 多晶Pb(Cd1/3Ti1/3W1/3)O3钨钙钛矿结构与电学性能研究
International Journal of Microstructure and Materials Properties Pub Date : 2020-04-23 DOI: 10.1504/ijmmp.2020.10028875
S. Parida, R. Choudhary, P. Achary
{"title":"Study of structural and electrical properties of polycrystalline Pb(Cd1/3Ti1/3W1/3)O3 tungsten perovskite","authors":"S. Parida, R. Choudhary, P. Achary","doi":"10.1504/ijmmp.2020.10028875","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.10028875","url":null,"abstract":"The presence of tetragonal distortion and spontaneous polarisation in lead titanate attracts the researchers to modify the titanate perovskites. A modified lead titanate Pb(Cd1/3W1/3Ti1/3)O3 perovskite is synthesised by a conventional high-temperature solid-state reaction technique. XRD pattern of the sample confirms the cubic crystal structure having space group F-43m. Full proof Rietveld analysis has been used for structural refinement. The presence of FTIR frequency bands corresponding to Ti-O, O-, W-O-W, and CdO stretching confirm that Cd2+, W6+ ions completely substitute the Ti+4 ions at the B site of the perovskite, as confirmed by the XRD obtained data. As the frequency increases from 1 kHz to 5 MHz, the activation energy (Ea) decreases from 0.767 eV to 0.089 eV. The activation energy and conductivity mechanism in the samples dominated by hopping charge carriers. Both Nyquist and Cole-Cole plots confirm the semiconducting nature of the samples and make the material technologically important.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48035494","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
Physical-mechanical properties of steel fibre-reinforced self-compacting concrete containing natural perlite addition 含天然珍珠岩的钢纤维增强自密实混凝土的物理力学性能
International Journal of Microstructure and Materials Properties Pub Date : 2020-04-23 DOI: 10.1504/ijmmp.2020.106923
S. Mansour
{"title":"Physical-mechanical properties of steel fibre-reinforced self-compacting concrete containing natural perlite addition","authors":"S. Mansour","doi":"10.1504/ijmmp.2020.106923","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.106923","url":null,"abstract":"The aim of this work is to highlight the effect of the Algerian natural perlite used as fillers addition on the workability and physical-mechanical properties of metallic fibre self-compacting concrete (SCC). Effect of the perlite is compared to that of silica fume fillers to replace limestone fillers. One control concrete without fibres containing limestone fillers, two concretes with silica fume or perlite fillers and six SCCs were elaborated with limestone, perlite and silica fume fillers separately containing 1% vol. of steel long wavy or short hooked fibres. Several tests were conducted for evaluating the workability properties in the fresh state, the density, mechanical strengths and elastic modulus in the hardened state. The results show the beneficial effect of the use of perlite as fillers. Workability properties decrease slightly but an increase of mechanical strengths and elastic modulus is much more marked with the use of the steel hooked fibres.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmmp.2020.106923","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47848833","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
Wear and hardness evaluation of electrodeposited Ni-SiC nanocomposite coated copper 电沉积Ni-SiC纳米复合镀层铜的磨损和硬度评价
International Journal of Microstructure and Materials Properties Pub Date : 2020-04-23 DOI: 10.1504/ijmmp.2020.106921
Dipak Kumar, G. Shree, V. Dwivedi
{"title":"Wear and hardness evaluation of electrodeposited Ni-SiC nanocomposite coated copper","authors":"Dipak Kumar, G. Shree, V. Dwivedi","doi":"10.1504/ijmmp.2020.106921","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.106921","url":null,"abstract":"In this article, Ni-SiC nano-composite coatings were fabricated using the conventional electrodeposition process, Watt's Nickel electroplating and sulfamate bath, applying on copper substrates. The goal of the present work was to improve wear resistance and hardness properties of Ni-SiC composite coatings by electrodeposition techniques. To obtain a better chemistry between SiC incorporations and Ni matrix and, afterwards, better wear resistance, the variation in the microhardness was considered as significant surface property of nanocomposites by examining the effect of various electrodeposition parameters such as, pH, temperature, current density, temperature, etc. The microhardness,778HV, and the wear resistance of the nanocomposite coatings was found to be increased with increasing content of Ni-SiC at optimised current values of 0.61A. Uniform distribution of coatings structure as cauliflower was confirmed by atomic force microscopy and scanning electron microscopy, while composition and crystallinity of Ni-SiC was confirmed by energy dispersive X-ray spectroscopy and X-ray diffractometry, respectively.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmmp.2020.106921","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48338866","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: 5
Translucent α- and α/β-SiAlON ceramics: study on investigation of the relationship between phase diversity and optical properties 半透明α-和α/β-SiAlON陶瓷：相多样性与光学性能关系的研究
International Journal of Microstructure and Materials Properties Pub Date : 2020-01-22 DOI: 10.1504/ijmmp.2020.10026338
S. Avcıoğlu, S. Kurama
{"title":"Translucent α- and α/β-SiAlON ceramics: study on investigation of the relationship between phase diversity and optical properties","authors":"S. Avcıoğlu, S. Kurama","doi":"10.1504/ijmmp.2020.10026338","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.10026338","url":null,"abstract":"In this study, Dy+3, Y+3, and La+3 doped SiAlON ceramics were fabricated by using spark plasma sintering (SPS) technique. The effects of additive cation, starting composition and processing conditions on the morphological evolution as well as on the phase assembly of SiAlON ceramics were investigated. The influence of phase diversity on the optical properties of SiAlON ceramics was also discussed. Results indicate that the translucent α- SiAlON, α/β-SiAlON ceramics and their in-situ composites with AlNpolytypoids could be successfully obtained. The presence of a high amount of secondary phases such as AlN-polytype and the oxynitride glassy phase has been found to reduce the optical transmission of SiAlON ceramics. The doping of Y+3 and Dy+3 cations contributed better to the formation of single-phase α-SiAlON than that of La+3. Doping SiAlON ceramics with Dy+3 cation leads to the formation of relatively homogenised final microstructure. Therefore, higher IR transmission values were observed on Dy-α-SiAlON (42.2%) and Dy-α/β-SiAlON (45.07%) samples.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44023992","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
Long-term performance of concrete using additives 使用添加剂的混凝土的长期性能
International Journal of Microstructure and Materials Properties Pub Date : 2020-01-22 DOI: 10.1504/ijmmp.2020.10026341
K. Devi, B. Saini, P. Aggarwal
{"title":"Long-term performance of concrete using additives","authors":"K. Devi, B. Saini, P. Aggarwal","doi":"10.1504/ijmmp.2020.10026341","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.10026341","url":null,"abstract":"The increase in global warming due to emission of greenhouse gases especially during the production of cement has become threat to the environment. The development of sustainable and economical materials has become need of the present scenario. Also, direct disposal of waste from stone industries is becoming serious issue to ecosystem and need its safe disposal. Accelerators are being used to accelerate stiffening and early age strength development of mortar/concrete. In this study, Kota stone powder (KSP) as partial substitution to cement and admixtures, i.e., calcium nitrate, triethanolamine as additives were used individually and in combination to examine their influence on strength, durability and micro-structural properties at later age. The aim of study was to check the viability of these materials in concrete under different environmental conditions; and to make sustainable concrete by reducing cement and cost. Admixtures and stone powder individually improved the properties; while, their mixture diminished concrete properties.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46783685","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: 2
Mechanics study of automotive aluminium alloy materials based on elastohydrodynamic model 基于弹流力学模型的汽车铝合金材料力学研究
International Journal of Microstructure and Materials Properties Pub Date : 2020-01-21 DOI: 10.1504/ijmmp.2020.10026337
Jianna Huang, Xuan Wang
{"title":"Mechanics study of automotive aluminium alloy materials based on elastohydrodynamic model","authors":"Jianna Huang, Xuan Wang","doi":"10.1504/ijmmp.2020.10026337","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.10026337","url":null,"abstract":"To solve the problem of large error in traditional testing methods for automotive aluminium alloy materials, a testing method for mechanical properties of automotive aluminium alloy materials based on elastohydrodynamic model was proposed. Firstly, the elastohydrodynamic model of automobile aluminium alloy material is constructed to obtain the bearing capacity and strength of automobile aluminium alloy material. Secondly, based on the elastohydrodynamic model of automobile aluminium alloy material, the load and yield strength of automobile aluminium alloy material mechanical components are analysed, and the vehicle use is estimated. Parameters of mechanical components of aluminium alloy materials. Finally, the mechanical properties of automotive aluminium alloys were further optimised by the evaluation method of under-actuated two-degree-of-freedom mechanism and the calculation of the coupling eigenfunction of mechanical properties of aluminium alloys and the energy equation of the relationship between friction force and friction coefficient.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41477680","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
Effect of different sintering conditions on microstructural characterisation of Co-Cr metal laser powder 不同烧结条件对Co-Cr金属激光粉末微观结构特征的影响
International Journal of Microstructure and Materials Properties Pub Date : 2020-01-21 DOI: 10.1504/ijmmp.2020.10026339
G. Pekkan, E. Taşçi, K. Pekkan, Murat Ispalarli
{"title":"Effect of different sintering conditions on microstructural characterisation of Co-Cr metal laser powder","authors":"G. Pekkan, E. Taşçi, K. Pekkan, Murat Ispalarli","doi":"10.1504/ijmmp.2020.10026339","DOIUrl":"https://doi.org/10.1504/ijmmp.2020.10026339","url":null,"abstract":"Co-Cr alloys have been used for many years in dentistry. In recent years, the fabrication of prosthetic restorations from Co-Cr alloys by metal laser sintering method has become widespread. This method is a combination of powder metallurgy and three-dimensional printing technologies. The surface microstructure of the material and the different phases formed on the surface of the material after sintering and heat treatment are extremely important since these metal substructures are layered with dental porcelain in fixed prosthetic dentistry. In this study, characterisation of Co-Cr alloy samples produced by direct metal laser sintering (DMLS) method and sintering under various atmospheric conditions were performed with X-ray diffractometer (XRD), scanning electron microscope (SEM) and energy-dispersive X-ray diffractometer (EDX). It was observed that sintering with different methods under various atmospheric conditions affected the XRD phase intensities. The sintering in the argon gas atmosphere yielded a more significant phase separation that facilitates the identification of different phases in XRD patterns.","PeriodicalId":35049,"journal":{"name":"International Journal of Microstructure and Materials Properties","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49529215","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
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