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Bulletin of the Russian Academy of Sciences: Physics最新文献

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Study of the Evolution of the Phase Composition of Laser Welded Joints of Third-Generation Al–Li Alloys with the Use of Synchrotron Radiation 同步辐射对第三代铝锂合金激光焊接接头相组成演变的研究
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-17 DOI: 10.1134/S1062873824708857
A. G. Malikov, I. E. Vitoshkin, M. I. Mironova, A. P. Zavjalov, K. E. Kuper
{"title":"Study of the Evolution of the Phase Composition of Laser Welded Joints of Third-Generation Al–Li Alloys with the Use of Synchrotron Radiation","authors":"A. G. Malikov,&nbsp;I. E. Vitoshkin,&nbsp;M. I. Mironova,&nbsp;A. P. Zavjalov,&nbsp;K. E. Kuper","doi":"10.1134/S1062873824708857","DOIUrl":"10.1134/S1062873824708857","url":null,"abstract":"<p>We studied the evolution of the phase composition of laser welded joints before and after heat treatment of 3rd generation Al–Li alloys using synchrotron radiation. The article demonstrates the fundamental role of the alloying elements of copper and lithium in formation of the phase composition of the fusion zone of the weld. It has been established that laser exposure changes the phase composition of the alloy. Namely, low copper contents mainly lead to formation of T<sub>2</sub>(Al<sub>6</sub>CuLi<sub>3</sub>) and T<sub>3</sub>(Al<sub>5</sub>CuLi<sub>3</sub>) phases, the average copper contents form T<sub>1</sub>(Al<sub>2</sub>CuLi), T<sub>2</sub>(Al<sub>6</sub>CuLi<sub>3</sub>), T<sub>3</sub>(Al<sub>5</sub>CuLi<sub>3</sub>) phases and the presence of high copper contents results in formation of T<sub>1</sub>(Al<sub>2</sub>CuLi) phase at the boundaries of dendrite. Post-heat treatment restores the initial phase composition in the fusion zone. As for the solid solution, the δ'(Al<sub>3</sub>Li) phase is formed at low copper contents, the δ'(Al<sub>3</sub>Li) and T<sub>1</sub>(Al<sub>2</sub>CuLi) phases are formed at average copper contents, and T<sub>1</sub>(Al<sub>2</sub>CuLi) phase is observed at high copper contents. Consequently, this makes it possible to improve the mechanical properties of weld joint specimens to match the numbers of the initial alloy.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 1 supplement","pages":"S89 - S99"},"PeriodicalIF":0.48,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994952","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
Hard X-Ray Diffraction Phase Analysis of Kidney Stones inside Phantom Objects 幻影物体内肾结石的硬x射线衍射物相分析
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-17 DOI: 10.1134/S1062873824708869
A. I. Nizovskii, A. N. Shmakov, A. A. Legkodymov, D. V. Dorokhova, V. I. Bukhtiyarov
{"title":"Hard X-Ray Diffraction Phase Analysis of Kidney Stones inside Phantom Objects","authors":"A. I. Nizovskii,&nbsp;A. N. Shmakov,&nbsp;A. A. Legkodymov,&nbsp;D. V. Dorokhova,&nbsp;V. I. Bukhtiyarov","doi":"10.1134/S1062873824708869","DOIUrl":"10.1134/S1062873824708869","url":null,"abstract":"<p>X-ray diffraction on synchrotron radiation was used to analyze kidney stones as part of phantom objects simulating the patient’s body. The radiation photon energies were 33.7, 67 and 112 keV. It has been shown that the use of synchrotron monochromatic radiation with photon energy <i>E</i> ≥ 67 keV allows one to reliably identify the mineral composition of uroliths. The shift to a higher photon energy range can significantly reduce the radiation load on patients during diagnosis. The patient’s weight factor also becomes less critical.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 1 supplement","pages":"S100 - S104"},"PeriodicalIF":0.48,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995261","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
Natural Ferromagnetic Resonance in Cobalt Ferrite Powders 钴铁氧体粉末的天然铁磁共振
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-17 DOI: 10.1134/S1062873824708729
S. V. Stolyar, O. A. Li, E. D. Nikolaeva, A. M. Vorotynov, D. A. Velikanov, I. G. Vazhenina, O. A. Bayukov, R. S. Iskhakov, N. M. Boev, A. O. Shokhrina, M. N. Volochaev, A. L. Sukhachev
{"title":"Natural Ferromagnetic Resonance in Cobalt Ferrite Powders","authors":"S. V. Stolyar,&nbsp;O. A. Li,&nbsp;E. D. Nikolaeva,&nbsp;A. M. Vorotynov,&nbsp;D. A. Velikanov,&nbsp;I. G. Vazhenina,&nbsp;O. A. Bayukov,&nbsp;R. S. Iskhakov,&nbsp;N. M. Boev,&nbsp;A. O. Shokhrina,&nbsp;M. N. Volochaev,&nbsp;A. L. Sukhachev","doi":"10.1134/S1062873824708729","DOIUrl":"10.1134/S1062873824708729","url":null,"abstract":"<p>The structure, magnetic properties and ferromagnetic resonance curves of cobalt ferrite particles synthesized by chemical coprecipitation technique have been studied. The possibility of resonant heating of powder in a magnetic anisotropy field of particles is shown, which can find application in medicine for magnetic hyperthermia.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 1 supplement","pages":"S19 - S24"},"PeriodicalIF":0.48,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995380","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
Simulation of Phase Shift of Spin Waves Passing through an Electrically Controlled Domain Wall 自旋波通过电控畴壁相移的模拟
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-17 DOI: 10.1134/S106287382470878X
N. V. Myasnikov, A. P. Pyatakov
{"title":"Simulation of Phase Shift of Spin Waves Passing through an Electrically Controlled Domain Wall","authors":"N. V. Myasnikov,&nbsp;A. P. Pyatakov","doi":"10.1134/S106287382470878X","DOIUrl":"10.1134/S106287382470878X","url":null,"abstract":"<p>We considered a domain wall as a structure which shifts the phase of a propagating spin wave under the condition of applied electric field by means of an inhomogeneous magnetoelectric coupling. The result is that the electrically induced transition of the Bloch domain wall into the Néel domain wall changes the phase of spin wave passed through the domain wall by nearly 180°.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 1 supplement","pages":"S53 - S58"},"PeriodicalIF":0.48,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995017","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
Concentration and Angular Dependences of Ferromagnetic Resonance Parameters and Magnetic Structure of CoTaNb/MgO Composite Films CoTaNb/MgO复合膜铁磁共振参数和磁性结构的浓度和角依赖性
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-17 DOI: 10.1134/S1062873824708833
L. N. Kotov, Z. N. Blinov, P. D. Kovalev, D. V. Zavarin, Yu. E. Kalinin, A. V. Sitnikov
{"title":"Concentration and Angular Dependences of Ferromagnetic Resonance Parameters and Magnetic Structure of CoTaNb/MgO Composite Films","authors":"L. N. Kotov,&nbsp;Z. N. Blinov,&nbsp;P. D. Kovalev,&nbsp;D. V. Zavarin,&nbsp;Yu. E. Kalinin,&nbsp;A. V. Sitnikov","doi":"10.1134/S1062873824708833","DOIUrl":"10.1134/S1062873824708833","url":null,"abstract":"<p>Concentration and angular dependences of the parameters (line width and position) of ferromagnetic resonance (FMR) for CoTaNb/MgO composite films with metal alloy concentrations <i>x</i> = 0.27–0.72 were obtained in the work. Granular, granular-percolation structure and zigzag stripe magnetic structure for films with different x were detected. An increase in the FMR parameters with an increase in the angle from 0° to 90° between the constant magnetic field and the film plane with different <i>x</i> was observed. It was shown in the work that the behavior of the angular dependences strongly depends on the magnetic structure of the films, which have the greatest change in the region of transition from granular to granular-percolation structure with extended magnetic metallic microregions. The FMR method is a structure-sensitive method for scientific studies of the electromagnetic properties of thin magnetic composite films with granular and percolation structures and their combinations was demonstrated.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 1 supplement","pages":"S80 - S84"},"PeriodicalIF":0.48,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994949","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
Development of Detectors for Station 1–3 “Fast Processes” of the SKIF Center for Collective Use SKIF集体使用中心1-3站“快速过程”探测器的研制
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-17 DOI: 10.1134/S1062873824708870
L. I. Shekhtman, V. M. Aulchenko, V. E. Burdin, A. A. Glushak, M. A. Kornievsky, V. N. Kudryavtsev, V. M. Titov, O. P. Tolbanov, A. V. Tyazhev, A. N. Zarubin, V. V. Zhulanov
{"title":"Development of Detectors for Station 1–3 “Fast Processes” of the SKIF Center for Collective Use","authors":"L. I. Shekhtman,&nbsp;V. M. Aulchenko,&nbsp;V. E. Burdin,&nbsp;A. A. Glushak,&nbsp;M. A. Kornievsky,&nbsp;V. N. Kudryavtsev,&nbsp;V. M. Titov,&nbsp;O. P. Tolbanov,&nbsp;A. V. Tyazhev,&nbsp;A. N. Zarubin,&nbsp;V. V. Zhulanov","doi":"10.1134/S1062873824708870","DOIUrl":"10.1134/S1062873824708870","url":null,"abstract":"<p>As a part of the first-stage experimental stations at the SKIF Center for Shared Use, a unique station 1–3 “Fast Processes” is being created, designed to study detonation, shock wave processes, as well as processes of reaction of materials to pulsed thermal or mechanical influence. The station will include three sections: the “Plasma” section, designed to study the processes of reaction of materials to pulsed thermal and mechanical loads; section “Dynamic processes, main building”, which is supposed to study shock wave processes and section “Dynamic processes, separate building”, intended for studying detonation and shock wave processes. To conduct experiments at stations 1–3, five coordinate X-ray detectors of various types are being developed. We described in detail the characteristics of the detectors and the status of development.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 1 supplement","pages":"S105 - S115"},"PeriodicalIF":0.48,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995281","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
Magnetic Properties of Co73Fe4Si12B11 Ferromagnetic Microwires in Amorphous and Crystalline State Co73Fe4Si12B11铁磁微线的非晶态和晶态磁性能
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-17 DOI: 10.1134/S1062873824708808
A. E. Sarakueva, G. E. Danilov, Yu. B. Grebenshchikov, V. I. Odintsov, A. V. Popova, S. A. Gudoshnikov
{"title":"Magnetic Properties of Co73Fe4Si12B11 Ferromagnetic Microwires in Amorphous and Crystalline State","authors":"A. E. Sarakueva,&nbsp;G. E. Danilov,&nbsp;Yu. B. Grebenshchikov,&nbsp;V. I. Odintsov,&nbsp;A. V. Popova,&nbsp;S. A. Gudoshnikov","doi":"10.1134/S1062873824708808","DOIUrl":"10.1134/S1062873824708808","url":null,"abstract":"<p>We studied the magnetic properties of Co<sub>73</sub>Fe<sub>4</sub>Si<sub>12</sub>B<sub>11</sub> ferromagnetic microwires in initial amorphous and crystalline state achieved by thermal treatment with direct current. A microwire in amorphous state is found to be characterized with quasilinear hysteresis loop with small coercive force less than 0.05 kA/m. Once crystallized, the microwire loses its soft magnetic properties, its hysteresis loop radically expands, and the coercive force becomes equal to 15 kA/m.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 1 supplement","pages":"S64 - S69"},"PeriodicalIF":0.48,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994840","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
Diffractive Optical Elements for Three-Dimensional Nanoscopy Using Rotating Light Fields 基于旋转光场的三维纳米衍射光学元件
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-16 DOI: 10.1134/S1062873824708390
D. V. Prokopova, I. Yu. Eremchev, N. N. Losevsky, D. A. Belousov, S. K. Golubtsov, S. P. Kotova, A. V. Naumov
{"title":"Diffractive Optical Elements for Three-Dimensional Nanoscopy Using Rotating Light Fields","authors":"D. V. Prokopova,&nbsp;I. Yu. Eremchev,&nbsp;N. N. Losevsky,&nbsp;D. A. Belousov,&nbsp;S. K. Golubtsov,&nbsp;S. P. Kotova,&nbsp;A. V. Naumov","doi":"10.1134/S1062873824708390","DOIUrl":"10.1134/S1062873824708390","url":null,"abstract":"<p>The authors study diffractive optical elements manufactured via contact printing on a dichromated gelatin and direct laser writing on photoresist. The elements modify the point-spread function for three-dimensional super resolution fluorescence microscopy. It is shown that both elements produce two-lobed rotating light fields that can be used for three-dimensional nanoscopy. Results from the subdiffractive localization of fluorescent labels are presented, and the accuracy of coordinate reconstruction is determined.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 12","pages":"1875 - 1880"},"PeriodicalIF":0.48,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994935","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
Thermal Characteristics of Amorphous Fe–Ni–Si–C Alloys 非晶态Fe-Ni-Si-C合金的热特性
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-16 DOI: 10.1134/S1062873824708675
O. Kuvandikov, N. S. Hamraev, R. M. Razhabov, I. Subkhankulov, Sh. A. Khomitov, D. H. Imamnazarov
{"title":"Thermal Characteristics of Amorphous Fe–Ni–Si–C Alloys","authors":"O. Kuvandikov,&nbsp;N. S. Hamraev,&nbsp;R. M. Razhabov,&nbsp;I. Subkhankulov,&nbsp;Sh. A. Khomitov,&nbsp;D. H. Imamnazarov","doi":"10.1134/S1062873824708675","DOIUrl":"10.1134/S1062873824708675","url":null,"abstract":"<p>Differential scanning calorimetry (DSC) is used to study the phase transformations of four amorphous metal alloys based on transition metals Fe and Ni with additives of Si and C. The temperature dependences of the heat flux upon phase transformations are measured along with changes in the mass and specific heat capacity of amorphous alloys. Two phase transformations associated with the temperature of glass transition and complete crystallization are identified. The relative volume of the crystalline fraction of alloys heated to 1000°C is calculated. It is concluded there are nanocrystalline phases between the first and second phase transitions at heating rates of 0.1°C/s.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 12","pages":"2055 - 2060"},"PeriodicalIF":0.48,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995092","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
Structural Features and the Effect of Temperature Memory in a Vitrivied Film of an Europium(III) β-Diketonate Complex 铕(III) β-二酮酸配合物玻璃化膜的结构特征及温度记忆效应
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-01-16 DOI: 10.1134/S1062873824708584
D. V. Lapaev, V. G. Nikiforov, D. K. Zharkov, A. A. Knyazev, Yu. G. Galyametdinov
{"title":"Structural Features and the Effect of Temperature Memory in a Vitrivied Film of an Europium(III) β-Diketonate Complex","authors":"D. V. Lapaev,&nbsp;V. G. Nikiforov,&nbsp;D. K. Zharkov,&nbsp;A. A. Knyazev,&nbsp;Yu. G. Galyametdinov","doi":"10.1134/S1062873824708584","DOIUrl":"10.1134/S1062873824708584","url":null,"abstract":"<p>Confocal optical microscopy data with a resolution of 1 μm on the spatial heterogeneity of a vitrified film prepared from a melt powder of an anisometric europium(III) β-diketonate complex are presented. It has been shown that the heterogeneity caused by crystalline inclusions in the amorphous structure of the film, leads to a temperature memory effect, when the film can be in different states at the same temperature.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 12","pages":"1987 - 1992"},"PeriodicalIF":0.48,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995096","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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