2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)最新文献_第6页

Mechanical Alloying of Refractory Metals with Boron and Carbon as a Method of Nanocrystalline Compounds Powders Obtaining 难熔金属与硼碳机械合金化制备纳米晶化合物粉末的方法

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9568394

M. Savyak, P. Sylenko, Y. Solonin

{"title":"Mechanical Alloying of Refractory Metals with Boron and Carbon as a Method of Nanocrystalline Compounds Powders Obtaining","authors":"M. Savyak, P. Sylenko, Y. Solonin","doi":"10.1109/NAP51885.2021.9568394","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568394","url":null,"abstract":"High enthalpy of refractory metals borides and carbides points that these compounds can be obtained at low temperature. This can be performed with help of a planetary mill where synthesis processes take place at low temperatures. The carbide and boride formation process at a low temperature yields compounds in nanocrystalline state with the specific surface area up to 7 m2/g. The formation of a particular phase through milling of refractory metals with boron or carbon in a planetary mill depends on the physical-chemical properties of starting powders, enthalpy of the final product formation, and on the intensity of milling process. Depending on these conditions, processes of mechanical alloying in the system Me-boron and Me-carbon run by the following mechanisms: mechanically-induced reaction of self-propagating synthesis (MSS), diffusion-controlled process of interstitial solid solutions decomposition and destruction (amorphization) of the initial metals with subsequent formation of carbide and boride nucleation’s. The compounds obtained during mechanochemical synthesis, independently of the mechanism formation, have a nanostructure.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"26 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85825502","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

Insect Chitin Nanofibers for Medical Application: Obtaining and Characterization 医用昆虫几丁质纳米纤维的制备与表征

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9568527

O. Kalinkevich, A. Sklyar, A. Gudakov, Yevgen Zinchenko, A. Kalinkevich, S. Danilchenko, D. Sofronov, V. Chivanov, V. Starikov, T. Markina, Marina Pakhucha

引用次数: 1

High-Performance Gas Sensors Using Heterostructures based on Binary and Ternary Metal Oxides 基于二元和三元金属氧化物异质结构的高性能气体传感器

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9568540

N. Ababii, M. Bodduluri, H. Krüger, S. Hansen, V. Postica, O. Lupan, R. Adelung

引用次数: 0

Magnetoresistance of Carbon Nanotubes Filled by Iron 铁填充碳纳米管的磁阻

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9568395

I. Ovsiienko, T. L. Tsaregradskaya, D. Shpylka, L. Matzui, G. V. Saenko, U. Ritter, T. Len, Y. Prylutskyy

引用次数: 2

Pseudocapacitive Performance of WO3/g-C3N4 Nanocomposites WO3/g-C3N4纳米复合材料的赝电容性能

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9656569

Oluwafunmilola Ola, Yu Chen, Yanqiu Zhu, D. Grant

引用次数: 0

Evolution of Special Grain Boundaries and Relative Grain-Boundary Energy in Phosphorus-Doped Polysilicon Films under Annealing 退火条件下掺磷多晶硅薄膜特殊晶界和相对晶界能的演化

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9568618

T. Rodionova

{"title":"Evolution of Special Grain Boundaries and Relative Grain-Boundary Energy in Phosphorus-Doped Polysilicon Films under Annealing","authors":"T. Rodionova","doi":"10.1109/NAP51885.2021.9568618","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568618","url":null,"abstract":"The effect of annealing on the grain-boundary structure and the relative grain-boundary energy of phosphorus-doped polysilicon films, obtained by low-pressure chemical vapor deposition, was studied by transmission electron microscopy and atomic force microscopy. The obtained distributions of the types of grain boundaries for different annealing temperatures showed that a significant part of the grain boundaries in polysilicon films are special grain boundaries, in particular, twin boundaries of different orders of twinning. It is assumed that the difference in the distributions of special boundaries for different annealing temperatures is due to the difference in the mechanisms of grain growth in different temperature ranges. The relative amount of a particular type of special grain boundaries in the films is determined by the annealing temperature and is the result of processes that take place when the temperature increases, in particular, the processes of growth of first-order annealing twins and splitting of high-order twin boundaries. Estimates of the relative grain-boundary energy by the method of grain-boundary grooves based on the data of atomic force microscopy, have shown that the relative grain-boundary energy decreases with an increasing of annealing temperature. Such a decrease is due to an increase in the number of special boundaries, faceting of grain boundaries.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"42 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82036939","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

On Modelling the Viscosity of Fullerene-Containing Nanofluids 含富勒烯纳米流体粘度模拟研究

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9568551

K. Khanchych, V. Zhelezny, O. Khliyeva, Ivan Diachenko, Y. Semenyuk, Yana Hlek

{"title":"On Modelling the Viscosity of Fullerene-Containing Nanofluids","authors":"K. Khanchych, V. Zhelezny, O. Khliyeva, Ivan Diachenko, Y. Semenyuk, Yana Hlek","doi":"10.1109/NAP51885.2021.9568551","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568551","url":null,"abstract":"The results of modeling the viscosity of fullerene-containing nanofluids (NFs) in a wide temperature range are presented. Two different models for predicting the viscosity of NFs are proposed. The first one is based on the thermodynamic similarity of the studied NFs with their base fluids. It was established that solutions of fullerene ${mathrm C}_{60}$ in o-xylene as well as solutions of fullerene ${mathrm C}_{60}$ in tetralin (1,2,3,4 - tetrahydronaphthalene) are thermodynamically similar with o-xylene and tetralin, respectively. To calculate the viscosity of fullerene-containing NFs, the equations based on the activation theory of viscous flow were used. An analysis of the temperature dependence of the activation energy of the base fluids and corresponding NFs was performed. It was found that the temperature dependences of the activation energy of the base fluids and corresponding NFs are practically equidistant lines. That makes possible to predict the viscosity of the NFs using the obtained temperature dependences of the activation energy of the base fluids and limited information on the NF’s viscosity (one experimental value for a certain concentration). The second model for predicting the viscosity of the NFs is based on the information on a free volume that can be obtained from data on the density of the NFs. In this model, it is proposed to use as the free volume of the studied solutions the inverse quantities to their critical amplitudes calculated by the author’s model of the extended scaling.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"68 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80049192","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

The Efficiency of Nanofluid Use in the Heat Supply System of a House with a Geothermal Heat Pump 纳米流体在地源热泵住宅供热系统中的应用效率

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9568625

Rymar Tetiana, Kazmiruk Myroslava, Shyika Ivan

{"title":"The Efficiency of Nanofluid Use in the Heat Supply System of a House with a Geothermal Heat Pump","authors":"Rymar Tetiana, Kazmiruk Myroslava, Shyika Ivan","doi":"10.1109/NAP51885.2021.9568625","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568625","url":null,"abstract":"Nanofluids, it is the new of generation of the fluids, as it ensures the reliability, efficiency, economy of the modern system of heat supply. Nanofluid-heat carriers are environmentally friendly. Using such heat carriers it is possible to save energy resources, that is, to consume less electricity and fossil energy sources. Nanofluid with volume concentrations of Al2O3 nanoparticles of 0.3S%, 0. S1 % and 1.30% was used as a heat carrier of the geothermal probe of the heat supply system. The convective heat exchange and the friction coefficient of such nanofluid in a round polyethylene pipe $emptyset 40times 2.4$ mm of the geothermal probe with a constant wall temperature under conditions of turbulent flow have been studied. In the work there is comparing the transport and thermal characteristics of nanofluids based on Al2O3 and water. The coefficient of the efficiency using of the studied nanofluids with Al2O3 nanoparticles was greater than one, and had a maximum value of 1.197. This is due to the fact that nanofluids have better thermal characteristics compared to water, which leads to improving the heat transfer in general. However, it should be noted that nanofluids have higher values of the viscosity coefficient, which degrades the hydrodynamic performance of the system.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"2 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79785167","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: 4

Synthesis, Morphology and Luminescence Properties of Pr3+-containing Phosphate-Molybdate Glass-Ceramics 含Pr3+磷酸盐-钼酸盐玻璃陶瓷的合成、形貌及发光性能

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9568601

V. Chornii, V. Boyko, S. Nedilko, K. Terebilenko, M. Slobodyanik

{"title":"Synthesis, Morphology and Luminescence Properties of Pr3+-containing Phosphate-Molybdate Glass-Ceramics","authors":"V. Chornii, V. Boyko, S. Nedilko, K. Terebilenko, M. Slobodyanik","doi":"10.1109/NAP51885.2021.9568601","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568601","url":null,"abstract":"The procedure for synthesis of luminescent glass-ceramics consisting of 37.09K<inf>2</inf> O-31.79P<inf>2</inf> O<inf>5</inf>-25.43MoO<inf>3</inf>-5.69Bi<inf>2</inf> O<inf>3</inf> vitreous phase and KBi<inf>0.993</inf> Pr<inf>0.007</inf>(MoO<inf>4</inf>)<inf>2</inf> micro/nanocrystals was described. The results of powder X-ray diffraction, scanning electron microscopy, FTIR and luminescence spectroscopy studies were discussed. It was found that the glass-ceramics samples consist mainly of amorphous phase. The FTIR spectra of the samples indicate a presence of MoO<inf>4</inf>2- and PO<inf>4</inf>3- tetrahedra, as well as MoO<inf>6</inf>6- octahedra in the vitreous framework. The uniform distribution of microsized crystals of potassium bismuth molybdate were found at surfaces of the samples. The KBi<inf>0.993</inf> Pr<inf>0.007</inf>(MoO<inf>4</inf>)<inf>2</inf> grains act as crystallization centres during glass-ceramics preparation. The studied samples revealed the luminescence bands of f-f transitions in Pr3+ ions. The broadening of Pr3+ emission bands in glass-ceramic samples was ascribed to migration of some rare-earth ions from crystalline component into glass host as well to formation of BiPO<inf>4</inf> microcrystals.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"61 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86364205","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

New Process for Nitriding Steel Parts 钢件氮化新工艺

2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2021-09-05 DOI: 10.1109/NAP51885.2021.9568563

V. Tarelnyk, O. Gaponova, V. Martsynkovskyy, I. Konoplianchenko, V. Melnyk, V. Vlasovets, M. Mikulina, Sergey Bondarev, O. Vasilenko, S. Hudkov, Anatolii Kutakh, G. Golovchenko

引用次数: 0