Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568522
V. Zhelezny, O. Khliyeva, A. Nikulin, N. Lapardin, D. Ivchenko, Elena Palomo del Barrio
Synthesize routes of paraffin wax (PW) dopped by carbon nanostructures (fullerene C60 and multi-wall carbon nanotube) as the phase change materials (PCM) with enhanced thermophysical properties have been discussed. Thermal conductivity of prepared composite PCMs in the solid and liquid states was measured. No any meaningful increase of thermal conductivity for PW dopped with carbon nanotubes was observed. However, significant enhancement (up to two times) was found for the thermal conductivity of the PW containing C60 in the solid phase. At the same time, an influence of C60 on the thermal conductivity of PW in liquid phase was insignificant.
{"title":"Paraffin Wax Enhanced with Carbon Nanostructures as Phase Change Materials: Preparation and Thermal Conductivity Measurement","authors":"V. Zhelezny, O. Khliyeva, A. Nikulin, N. Lapardin, D. Ivchenko, Elena Palomo del Barrio","doi":"10.1109/NAP51885.2021.9568522","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568522","url":null,"abstract":"Synthesize routes of paraffin wax (PW) dopped by carbon nanostructures (fullerene C60 and multi-wall carbon nanotube) as the phase change materials (PCM) with enhanced thermophysical properties have been discussed. Thermal conductivity of prepared composite PCMs in the solid and liquid states was measured. No any meaningful increase of thermal conductivity for PW dopped with carbon nanotubes was observed. However, significant enhancement (up to two times) was found for the thermal conductivity of the PW containing C60 in the solid phase. At the same time, an influence of C60 on the thermal conductivity of PW in liquid phase was insignificant.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"48 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":"86888679","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}
Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568609
R. Chyzhma, A. Piddubnyi, A. Stepanenko, S. Danilchenko, R. Moskalenko
This paper is devoted to morphology, microstructure, phase and elemental composition of pathological crystalline inclusions in malignant ovarian neoplasms. It was found that pathological minerals are represented by calcium apatite with different levels of crystallinity. The transmission electron microscopy in combination with electron microdiffraction has shown some structural and morphological features of ovarian apatite crystals, which were not detected by other methods. According to transmission electron microscopy, the crystalline particles of calcifications are polydisperse (of different sizes) and the range of their sizes can be quite large.
{"title":"Morphology of Nanocrystaline Calcifications of Ovarian Tumors","authors":"R. Chyzhma, A. Piddubnyi, A. Stepanenko, S. Danilchenko, R. Moskalenko","doi":"10.1109/NAP51885.2021.9568609","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568609","url":null,"abstract":"This paper is devoted to morphology, microstructure, phase and elemental composition of pathological crystalline inclusions in malignant ovarian neoplasms. It was found that pathological minerals are represented by calcium apatite with different levels of crystallinity. The transmission electron microscopy in combination with electron microdiffraction has shown some structural and morphological features of ovarian apatite crystals, which were not detected by other methods. According to transmission electron microscopy, the crystalline particles of calcifications are polydisperse (of different sizes) and the range of their sizes can be quite large.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"126 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":"86483918","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}
Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568538
P. Mikheenko
Being biological object, microtubules attract significant attention in physics, since it is believed that they are responsible for quantum processing of information in the brain. There were, however, no direct experiments checking such a statement. Recently, strong advancement in quantum computing took place utilizing properties of superconductors at low temperatures. Following this progress, it was proposed that brain microtubules are superconducting at room temperature allowing quantum processing of information. Moreover, the evidence of room-temperature superconductivity in brain slices containing microtubules was obtained by electrical transport measurements, and even specific scenario of quantum processing in the microtubules has been suggested. These results, however, are not yet accepted by the scientific community as there are no known attempts to reproduce them. Another step in proving superconductivity would be confirming ideal diamagnetism of microtubules, since ideal diamagnetism is more fundamental property of superconductivity than perfect conductivity, some features of which were seen indirectly, or the existence of energy gap, which was already confirmed by the transport measurements. Here brain microtubules are examined by the magnetic force microscopy. The evidence of strong diamagnetism and its sensitivity to the water content in the microtubules is obtained. This gives another strong argument in favor of the concept suggesting superconductivity-based quantum processing of information in living organisms.
{"title":"Magnetic Force Microscopy of Brain Microtubules","authors":"P. Mikheenko","doi":"10.1109/NAP51885.2021.9568538","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568538","url":null,"abstract":"Being biological object, microtubules attract significant attention in physics, since it is believed that they are responsible for quantum processing of information in the brain. There were, however, no direct experiments checking such a statement. Recently, strong advancement in quantum computing took place utilizing properties of superconductors at low temperatures. Following this progress, it was proposed that brain microtubules are superconducting at room temperature allowing quantum processing of information. Moreover, the evidence of room-temperature superconductivity in brain slices containing microtubules was obtained by electrical transport measurements, and even specific scenario of quantum processing in the microtubules has been suggested. These results, however, are not yet accepted by the scientific community as there are no known attempts to reproduce them. Another step in proving superconductivity would be confirming ideal diamagnetism of microtubules, since ideal diamagnetism is more fundamental property of superconductivity than perfect conductivity, some features of which were seen indirectly, or the existence of energy gap, which was already confirmed by the transport measurements. Here brain microtubules are examined by the magnetic force microscopy. The evidence of strong diamagnetism and its sensitivity to the water content in the microtubules is obtained. This gives another strong argument in favor of the concept suggesting superconductivity-based quantum processing of information in living organisms.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"1 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":"86531792","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}
Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568529
B. Mordyuk, N. Khripta, V. Odnosum, S. Kedrovsky, Liguo Zhao, D. Lesyk
A multicomponent Ti28 Zr29 Hf28 Nb5 Ta10 alloy was subjected to ultrasonic impact treatment (UIT) carried out in the air (at room temperature) and in liquid nitrogen (at cryogenic temperature). X-ray diffraction (XRD) analysis shows that the UIT-induced severe plastic deformation did not change the single-bcc structure but results in a significant increase of dislocation density, grain refinement (the XRD-assessed grain size decreases down to ~25 nm after cryo-UIT), and formation of compressive residual stresses. Indentation tests show that the surface nanostructuring leads to the ~30% increase in the instrumental hardness of the cryo-UIT processed specimen (HIT ~5.4 GPa) and to a slight increase in elastic modulus (E ~90.5 GPa). The UIT processes also led to an increase in the corrosion potential and a decrease in the corrosion current density indicating the enhanced corrosion resistance in 0.9 NaCl physiological solution. The nanostructured surface was shown to experience uniform dissolution and quicker formation of the protective oxide layer.
{"title":"Enhancing Properties of TiZrHfNbTa Alloy by Surface Layers Nanostructuring Using Cryogenic Ultrasonic Impact Treatment","authors":"B. Mordyuk, N. Khripta, V. Odnosum, S. Kedrovsky, Liguo Zhao, D. Lesyk","doi":"10.1109/NAP51885.2021.9568529","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568529","url":null,"abstract":"A multicomponent Ti28 Zr29 Hf28 Nb5 Ta10 alloy was subjected to ultrasonic impact treatment (UIT) carried out in the air (at room temperature) and in liquid nitrogen (at cryogenic temperature). X-ray diffraction (XRD) analysis shows that the UIT-induced severe plastic deformation did not change the single-bcc structure but results in a significant increase of dislocation density, grain refinement (the XRD-assessed grain size decreases down to ~25 nm after cryo-UIT), and formation of compressive residual stresses. Indentation tests show that the surface nanostructuring leads to the ~30% increase in the instrumental hardness of the cryo-UIT processed specimen (HIT ~5.4 GPa) and to a slight increase in elastic modulus (E ~90.5 GPa). The UIT processes also led to an increase in the corrosion potential and a decrease in the corrosion current density indicating the enhanced corrosion resistance in 0.9 NaCl physiological solution. The nanostructured surface was shown to experience uniform dissolution and quicker formation of the protective oxide layer.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"11 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":"86537895","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}
Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568392
R. Dolbanosova, V. Loboda, T. Chernyavska, O. Bordunova, Y. Shchepetilnikov, V. Opara, Y. Samokhina, O. Chernenko, V. Chivanov
A new method for determining the quality of the shell of edible and hatching eggs of hens has been developed. The method is based on thermal programmed desorption-mass spectrometry (TPD-MS), which consists in study kinetic parameters of carbon dioxide release from a 0,5 – 5 mkg eggshell sample during a linear temperature rise in vacuumed quartz tubes by electron impact ionization mass spectrometer with subsequent mathematical processing of obtained thermograms (curves “signal intensity carbon dioxide vs temperature”). Analysis of the thermograms makes it possible to sorting of hatching and laying hen eggs according to quality indicators, which closely correlate with indicators of density and peculiarities of microstructure of biocrystalline layers of eggshells of incubation and laying eggs. These data allow us to make conclusions about the suitability of certain batches of eggs to further technological operations
{"title":"A New Method for Determining the Quality of Bionanocomposite Layers of Chicken Eggshells","authors":"R. Dolbanosova, V. Loboda, T. Chernyavska, O. Bordunova, Y. Shchepetilnikov, V. Opara, Y. Samokhina, O. Chernenko, V. Chivanov","doi":"10.1109/NAP51885.2021.9568392","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568392","url":null,"abstract":"A new method for determining the quality of the shell of edible and hatching eggs of hens has been developed. The method is based on thermal programmed desorption-mass spectrometry (TPD-MS), which consists in study kinetic parameters of carbon dioxide release from a 0,5 – 5 mkg eggshell sample during a linear temperature rise in vacuumed quartz tubes by electron impact ionization mass spectrometer with subsequent mathematical processing of obtained thermograms (curves “signal intensity carbon dioxide vs temperature”). Analysis of the thermograms makes it possible to sorting of hatching and laying hen eggs according to quality indicators, which closely correlate with indicators of density and peculiarities of microstructure of biocrystalline layers of eggshells of incubation and laying eggs. These data allow us to make conclusions about the suitability of certain batches of eggs to further technological operations","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"19 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":"82945027","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}
Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568524
M. Danyliak, O. Khlopyk, I. Zin, S. Korniy, M. Holovchuk
Environmentally friendly corrosion inhibitors were obtained by liquid-phase ion exchange modification of zeolite with zinc, calcium and manganese cations. The surface morphology and chemical composition of modified zeolites were determined by scanning electron microscopy and energy dispersion spectroscopy analyzes. It was established that the structure of ion-exchange modified zeolites is homogeneous with a particle size of 2-4 $mu mathrm{m}$. It was shown that using of modified zeolites increases the corrosion resistance of the aluminum alloy in 0.1% NaCl solution. The Zn-zeolite had highest anti-corrosion effectiveness. Gradual release of the inhibitory components from zeolites provides long-term protection of metal constructions.
{"title":"Anti-Corrosion Properties of Ions Modified Zeolite","authors":"M. Danyliak, O. Khlopyk, I. Zin, S. Korniy, M. Holovchuk","doi":"10.1109/NAP51885.2021.9568524","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568524","url":null,"abstract":"Environmentally friendly corrosion inhibitors were obtained by liquid-phase ion exchange modification of zeolite with zinc, calcium and manganese cations. The surface morphology and chemical composition of modified zeolites were determined by scanning electron microscopy and energy dispersion spectroscopy analyzes. It was established that the structure of ion-exchange modified zeolites is homogeneous with a particle size of 2-4 $mu mathrm{m}$. It was shown that using of modified zeolites increases the corrosion resistance of the aluminum alloy in 0.1% NaCl solution. The Zn-zeolite had highest anti-corrosion effectiveness. Gradual release of the inhibitory components from zeolites provides long-term protection of metal constructions.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"110 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":"80749226","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}
Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568548
D. Boyko, A. Khomenko, Natalya Kotliar, Ya.V. Khyzhnya, P. Trofymenko
Molecular dynamics simulation of ultrathin carbon disulfide film confined between atomically flat stiff diamond plates is exposed. While calculating the radial distribution functions, we specify three site-site distribution functions that are possible to measure experimentally: gCC,gCS and gSS. Films with one and two molecular layers are detailed and TIP4P model is applied for carbon disulfide molecules. The radial distribution function is also calculated as a function of the load on the substrate. Internal energy is calculated, for one-layer film with a zero load, such a dependency is irregular with considerable fluctuations. For a higher value of load, periodic spikes are observed. Similar spikes are inherent in experiments when the film is in a solid-like state and they are characteristic to the stick-slip friction. In general, the pattern of the studied model is in agreement with the experiments with simple fluids from spherical molecules.
{"title":"Simulation of Radial Distribution Functions and Internal Energy of Carbon Disulfide Film Sandwiched Between Diamond Surfaces","authors":"D. Boyko, A. Khomenko, Natalya Kotliar, Ya.V. Khyzhnya, P. Trofymenko","doi":"10.1109/NAP51885.2021.9568548","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568548","url":null,"abstract":"Molecular dynamics simulation of ultrathin carbon disulfide film confined between atomically flat stiff diamond plates is exposed. While calculating the radial distribution functions, we specify three site-site distribution functions that are possible to measure experimentally: gCC,gCS and gSS. Films with one and two molecular layers are detailed and TIP4P model is applied for carbon disulfide molecules. The radial distribution function is also calculated as a function of the load on the substrate. Internal energy is calculated, for one-layer film with a zero load, such a dependency is irregular with considerable fluctuations. For a higher value of load, periodic spikes are observed. Similar spikes are inherent in experiments when the film is in a solid-like state and they are characteristic to the stick-slip friction. In general, the pattern of the studied model is in agreement with the experiments with simple fluids from spherical molecules.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"104 1 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":"83310467","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}
The article considers the effect of modification of commercial material P25-TiO2 with yttrium oxide and the effect of the modifier nature on the photocatalytic activity towards ciprofloxacin. TiO2 modification with yttrium oxide enhances the degree of antibiotic degradation. Increase in modifier content affects the photoactivity of TiO2 ambiguously: when yttrium chloride is used as a precursor, photoactivity increases; when yttrium nitrate is used – photoactivity decreases. Additional use of an oxidant (H2O2) significantly increases (more than 2 times) efficiency of the photocatalytic process. It has been found that at low concentrations of antibiotic aqueous solution (up to $10 mathrm{mg/dm^{3}}$), its photodegradation over TiO2 modified with yttrium oxide reaches 100%. However, in case of high concentrations of ciprofloxacin (up to $50 mathrm{mg/dm^{3}}$), complete degradation of the antibiotic is observed only when the combination of TiO2 modified with yttrium oxide and oxidant H2O2 is utilized in the photocatalytic process.
{"title":"Photocatalytic Activity of P25-TiO2 Modified with Yttrium Oxide Towards Ciprofloxacin","authors":"Karashchuk Olha, Kutuzova Anastasiya, Dontsova Tetiana","doi":"10.1109/NAP51885.2021.9568624","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568624","url":null,"abstract":"The article considers the effect of modification of commercial material P25-TiO2 with yttrium oxide and the effect of the modifier nature on the photocatalytic activity towards ciprofloxacin. TiO2 modification with yttrium oxide enhances the degree of antibiotic degradation. Increase in modifier content affects the photoactivity of TiO2 ambiguously: when yttrium chloride is used as a precursor, photoactivity increases; when yttrium nitrate is used – photoactivity decreases. Additional use of an oxidant (H2O2) significantly increases (more than 2 times) efficiency of the photocatalytic process. It has been found that at low concentrations of antibiotic aqueous solution (up to $10 mathrm{mg/dm^{3}}$), its photodegradation over TiO2 modified with yttrium oxide reaches 100%. However, in case of high concentrations of ciprofloxacin (up to $50 mathrm{mg/dm^{3}}$), complete degradation of the antibiotic is observed only when the combination of TiO2 modified with yttrium oxide and oxidant H2O2 is utilized in the photocatalytic process.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"1 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":"87347560","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}
Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568391
I. Misiruk, O. Tymoshenko, A. Taran, S. Romaniuk, I. Garkusha, G. Nikolaychuk
Results on plasma nitriding of AISI 430 stainless steel samples have been presented. The nitriding process has been carried out in nitrogen plasma of non-self-sustained gas discharge with hollow anode in Bulat type device with pulsed biasing mode and repetition frequency 50 kHz. The phase composition of the obtained coatings was analyzed via X-ray diffraction (XRD). The surface morphology was monitored by scanning electron microscopy (SEM) whereas chemical composition was examined by using energy dispersive X-ray analysis (EDX). Vickers hardness was used as criteria to determine the diffusion zone thickness and the boundary to the steel base.
{"title":"Plasma Nitriding of Stainless Steel in Non-Self-Sustained Gas Discharge with Hollow Anode and Pulsed Bias","authors":"I. Misiruk, O. Tymoshenko, A. Taran, S. Romaniuk, I. Garkusha, G. Nikolaychuk","doi":"10.1109/NAP51885.2021.9568391","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568391","url":null,"abstract":"Results on plasma nitriding of AISI 430 stainless steel samples have been presented. The nitriding process has been carried out in nitrogen plasma of non-self-sustained gas discharge with hollow anode in Bulat type device with pulsed biasing mode and repetition frequency 50 kHz. The phase composition of the obtained coatings was analyzed via X-ray diffraction (XRD). The surface morphology was monitored by scanning electron microscopy (SEM) whereas chemical composition was examined by using energy dispersive X-ray analysis (EDX). Vickers hardness was used as criteria to determine the diffusion zone thickness and the boundary to the steel base.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"13 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":"89847045","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}
Pub Date : 2021-09-05DOI: 10.1109/NAP51885.2021.9568603
V. Lisovskiy, S. Dudin, A. Minenkov, S. Bogatyrenko, P. Platonov
The aim of this work was to study nanoparticles that are formed in the plasma volume of a radio-frequency capacitive discharge in acetylene. The particles partially penetrate into the polymer film on the electrodes, and partially increase in size, and then fall on the tube wall. It is shown that even when deposited on vertically located electrodes, the polymer film contains nanoparticles with diameter of about 10 nm. In the plasma volume, nanoparticles can grow up to several hundred nanometers in diameter and then fall on the wall of the discharge tube. An analysis of the emission spectra showed that only hydrogen lines and a weak CH band (431 nm) are observed in a burning rf discharge in acetylene. A polymer film deposited on the tube wall effectively absorbs radiation lines in the blue part of the spectrum, while lines in the red and infrared parts of the spectrum are weakly absorbed.
{"title":"Formation of Nanoparticles and Polymer Films in RF Gas-Discharge Plasma in Acetylene","authors":"V. Lisovskiy, S. Dudin, A. Minenkov, S. Bogatyrenko, P. Platonov","doi":"10.1109/NAP51885.2021.9568603","DOIUrl":"https://doi.org/10.1109/NAP51885.2021.9568603","url":null,"abstract":"The aim of this work was to study nanoparticles that are formed in the plasma volume of a radio-frequency capacitive discharge in acetylene. The particles partially penetrate into the polymer film on the electrodes, and partially increase in size, and then fall on the tube wall. It is shown that even when deposited on vertically located electrodes, the polymer film contains nanoparticles with diameter of about 10 nm. In the plasma volume, nanoparticles can grow up to several hundred nanometers in diameter and then fall on the wall of the discharge tube. An analysis of the emission spectra showed that only hydrogen lines and a weak CH band (431 nm) are observed in a burning rf discharge in acetylene. A polymer film deposited on the tube wall effectively absorbs radiation lines in the blue part of the spectrum, while lines in the red and infrared parts of the spectrum are weakly absorbed.","PeriodicalId":6735,"journal":{"name":"2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)","volume":"1 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":"89977221","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}
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