Russian Physics Journal最新文献_第10页

Investigation of Water Absorption and Porosity of Nano-Biosilica, Jute, and Bamboo Fiber-Reinforced Chitosan Biocomposite Materials 纳米二氧化硅、黄麻和竹纤维增强壳聚糖生物复合材料的吸水性和孔隙率研究

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-28 DOI: 10.1007/s11182-024-03190-5

S. Srivastava, S. K. Sarangi, S. P. Singh

引用次数: 0

Adhesion and Cohesion of Three-Dimensional Porous Calcium Phosphate Coatings on Titanium Deposited by Ultrasound-Assisted Micro-Arc Oxidation Method 超声辅助微弧氧化法沉积在钛上的三维多孔磷酸钙涂层的附着力和内聚力

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-28 DOI: 10.1007/s11182-024-03175-4

E. G. Komarova, E. A. Kazantseva, E. B. Akimova, P. V. Uvarkin

{"title":"Adhesion and Cohesion of Three-Dimensional Porous Calcium Phosphate Coatings on Titanium Deposited by Ultrasound-Assisted Micro-Arc Oxidation Method","authors":"E. G. Komarova, E. A. Kazantseva, E. B. Akimova, P. V. Uvarkin","doi":"10.1007/s11182-024-03175-4","DOIUrl":"10.1007/s11182-024-03175-4","url":null,"abstract":"The comprehensive approach using both pull-off tensile and scratch tests provided a detailed understanding of the adhesion and cohesion properties of the 3D-porous calcium phosphate (CaP) coatings deposited on a Ti substrate by the ultrasound-assisted micro-arc oxidation (UMAO) method. Using the pull-off tensile test which takes into account tensile stresses directed normally to the coating surface, it was found that the ultrasound (US) employing during the the micro-arc oxidation (MAO) process led to a slight decrease in the adhesion of the coating to the substrate from 23.4 to 19.3 MPa as well as to a change in the failure mechanism from the cohesive type characteristic for the control MAO coatings to the adhesive-cohesive type for the UMAO coatings. On the contrary, the results of the scratch test, which takes into account compressive stresses directed normally and tangentially to the coating surface, showed that the US employed during the MAO process led to an increase in the critical loads LC2 and LC3 to 6.7 and 30.6 N, respectively, promoting the adhesive-cohesive and adhesive failures of the coatings. Thus, the US employed during the MAO process led to an increase in the critical shear stresses of the UMAO coatings, thereby increasing their abrasion resistance.","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141171075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Hydrogen on the Development of Deformation and Fracture in Titanium Alloy VT22 in the Temperature Range of 293–823 K 氢对 293-823 K 温度范围内钛合金 VT22 变形和断裂发展的影响

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-28 DOI: 10.1007/s11182-024-03170-9

G. P. Grabovetskaya, I. P. Mishin, E. V. Naydenkin, E. N. Stepanova, O. V. Zabudchenko

引用次数: 0

Radiation Resistance of Optical Nanopowder Modified by Y2O3 Particles Y2O3 粒子修饰的光学纳米粉体的抗辐射性

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-28 DOI: 10.1007/s11182-024-03168-3

M. M. Mikhailov, S. A. Yur’ev, A. N. Lapin, V. A. Goronchko

引用次数: 0

Modeling of Volumetric Synthesis of Composite with Regard the Subsequent Structurization 考虑到后续结构化的复合材料体积合成模型

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-27 DOI: 10.1007/s11182-024-03171-8

N. V. Bukrina, A. G. Knyazeva

{"title":"Modeling of Volumetric Synthesis of Composite with Regard the Subsequent Structurization","authors":"N. V. Bukrina, A. G. Knyazeva","doi":"10.1007/s11182-024-03171-8","DOIUrl":"10.1007/s11182-024-03171-8","url":null,"abstract":"The paper proposes a two-dimensional thermokinetic model of the composite synthesis process in the mode of dynamic thermal explosion taking into account the structurization of the synthesis product. Structurization in the model is understood as a transition from amorphous to crystalline state. The model takes into account the heating of the reactor walls by thermal radiation from the device, the temperature of which can vary at different rates. Chemical reactions are described by a summary scheme that corresponds to the synthesis of Ni3Al composite. The kinetic law takes into account a possible strong inhibition of the rate of the reaction with the accumulation of the synthesis product, which is typical for reactions controlled by diffusion at the particle level. The effective thermophysical properties of the components of mixture and reaction products in the reactor depend on the properties of the constituents of the initial mixture and the fraction of reaction product. The properties of the latter also depend on the degree of structurization. The structurization process is described by a special additional parameter whose evolution is modeled by a reversible reaction. It is assumed that the structurization process starts from the moment of product appearance and continues during the cooling of the system. It is shown that synthesis results in the formation of a composite containing the initial components and the reaction product with the matrix partly in the amorphous state and partly in the structured state. The dynamics of synthesis and structurization are influenced by heating conditions and reactor size.","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141166986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structure and Photoluminescence of p-(n-heptyloxy)benzoic Acid Liquid Crystals Dispersed With ZnO Nanoparticles 分散有氧化锌纳米颗粒的对(正庚基氧基)苯甲酸液晶的结构和光致发光特性

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-27 DOI: 10.1007/s11182-024-03182-5

P. Jayaprada, M. C. Rao, B. T. P. Madhav, R. K. N. R. Manepalli

{"title":"Structure and Photoluminescence of p-(n-heptyloxy)benzoic Acid Liquid Crystals Dispersed With ZnO Nanoparticles","authors":"P. Jayaprada, M. C. Rao, B. T. P. Madhav, R. K. N. R. Manepalli","doi":"10.1007/s11182-024-03182-5","DOIUrl":"10.1007/s11182-024-03182-5","url":null,"abstract":"The paper investigates optical and spectral properties of ZnO nanoparticles dispersed p-(n-heptyloxy)benzoic acid (7-OBA) liquid crystalline (LC) compounds with the concentration of 1 to 2.5 wt.%. The prepared samples are characterized by various experimental techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet–visible spectroscopy, differential scanning calorimetry (DSC), polarizing optical microscopy (POM), and photoluminescence (PL) spectroscopy. The presence of ZnO nanoparticles is confirmed by the XRD. The crystallite size is found to be 68 nm. Phase transition temperatures and enthalpy values of pure and nanodispersed LC materials are measured by DSC. The texture of pure and nanodispersed LC phases like nematic and smectic, is observed through POM. Photoluminescence spectroscopy shows the dispersion of 2.5 wt.% ZnO nanoparticles in 7-OBA compound; the blue emission maximum shifts from 368 to 375 nm. The peak observed at 655 nm, is determined by point defects in the bandgap, namely vacancies and interstitial known as deep level emission.","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141166857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boron Isotope Separation Using Chemical Isotope Exchange with Thermal Flow Reversal 利用热流逆转化学同位素交换进行硼同位素分离

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-27 DOI: 10.1007/s11182-024-03186-1

P. A. Sukhar’, A. A. Orlov

引用次数: 0

Microstructure and Microhardness of V–W–Cr–Zr Alloy Depending on Deformation in Bridgman Anvils 取决于布里奇曼砧变形的 V-W-Cr-Zr 合金显微组织和显微硬度

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-27 DOI: 10.1007/s11182-024-03167-4

I. V. Smirnov, I. A. Ditenberg, V. I. Tolstihin

{"title":"Microstructure and Microhardness of V–W–Cr–Zr Alloy Depending on Deformation in Bridgman Anvils","authors":"I. V. Smirnov, I. A. Ditenberg, V. I. Tolstihin","doi":"10.1007/s11182-024-03167-4","DOIUrl":"10.1007/s11182-024-03167-4","url":null,"abstract":"Using the methods of transmission and scanning electron microscopy, the microstructure of a V–W–Cr–Zr alloy is studied as a function of its plastic deformation value under the condition of high-pressure torsion in the Bridgman anvils. The main stages of structure transformation and the respective mechanisms are identified. It is found out that the grain and defect structure transformation up to e ≈ 1.1 is provided by the dislocation and dislocation-disclination mechanisms, which when combined activate the processes of submicrocrystalline structure formation. The deformation impact in the strain interval from e ≈ 1.1 to e ≈ 3 is characterized by a significant increase in the grain-boundary length. A high strength state is achieved in the course of this deformation, where the dislocation modes of plastic deformation are suppressed. This is accompanied by the activated processes of formation of two-level nanostructured states, wherein the principal mechanism is a quasi-viscous re-orientation by the flows of non-equilibrium point defects. A further increase in the deformation to e ≈ 5.3 gives rise to refinement of the submicrocrystalline grains and formation of two-level nanostructured states in the entire material volume. The main contribution to the grain- and subgrain transformations comes from the disclination and quasi-viscous modes of plastic deformation. At higher strain degrees (e > 5.3), the size of submicrocrystalline grains does not virtually change, and the transformation of two-level nanostructured states makes itself evident in the rotations of some of the fragments of this structure with respect to the other by small angles from tens of fractions of a degree to several degrees. The formation of the submicrocrystalline state is followed by a multiple increase in the microhardness; its values are observed to saturate at e ≈ 3.3.","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141173529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancement of Magnon-Magnon Entanglement in a Double Cavity-Magnon System by Optical Parametric Amplifier 通过光参量放大器增强双腔磁子系统中的磁子-磁子纠缠

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-27 DOI: 10.1007/s11182-024-03185-2

Noureddine Benrass, Abdelkader Hidki, Driss Aoune, Nabil Habiballah

引用次数: 0

Impact of Hyperspeed Iron Microparticles on Light Transmission of Quartz Glasses with Protective In-Sn-O Coating in the Ultraviolet Range 超高速铁微颗粒对带有 In-Sn-O 保护涂层的石英玻璃在紫外线范围内的透光率的影响

IF 0.4 4区物理与天体物理

Russian Physics Journal Pub Date : 2024-05-27 DOI: 10.1007/s11182-024-03183-4

R. B. Tursunkhanova, V. P. Sergeev, O. V. Sergeev, V. V. Neufeld, Yu. F. Khristenko

{"title":"Impact of Hyperspeed Iron Microparticles on Light Transmission of Quartz Glasses with Protective In-Sn-O Coating in the Ultraviolet Range","authors":"R. B. Tursunkhanova, V. P. Sergeev, O. V. Sergeev, V. V. Neufeld, Yu. F. Khristenko","doi":"10.1007/s11182-024-03183-4","DOIUrl":"10.1007/s11182-024-03183-4","url":null,"abstract":"The effect of the thickness of thin protective In-Sn-O coatings, deposited on quartz glass by magnetron sputtering at various partial pressures in an argon and oxygen atmosphere, on their impact resistance and light transmission is studied. A correlation is revealed between the light transmittance in the ultraviolet (UV) region, the surface density of craters formed by hypervelocity bombardment with iron microparticles, and the sizes of the craters on the coating surfaces. The results of bombarding the In-Sn-O/quartz glass targets with a flow of microparticles using a light gas gun show that the UV transmittance of the coatings with different thicknesses (~4 and ~6 μm) increases by up to 12%, while for the uncoated KV quartz glass it decreases from 92% to 54% after bombardment. The number of craters forming on the coating surfaces depends on their thickness: with an increase in the In-Sn-O coating thickness to ~6 μm, the surface area occupied by the craters decreases, while the optical transmittance spectrum of the coatings remains unchanged.","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141166967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0