33 Result(s)

Article

Mechanical Properties of Ice Composites Reinforced with Cellulose Microfibers and Nanoparticles

The article presents the results of an experimental study of the reinforcement of fresh ice by microfibers and cellulose nanoparticles chaotically distributed throughout its volume with different dispersion an...

V. M. Buznik, Yu. I. Golovin, A. A. Samodurov… in Inorganic Materials: Applied Research (2024)

Article

Application of Laser Scannung Thermography and Regression Analysis to Determine Characteristics of Defects in Polymer Composite Materials

The method of laser point scanning thermography is highly sensitive and allows for reliable detection of surface and subsurface defects in products made of polymer composite materials. When implementing this m...

A. G. Divin, S. V. Ponomarev, S. V. Mishchenko… in Russian Journal of Nondestructive Testing (2024)

Article

Scanning Nanoindentation as an Instrument of Studying Local Mechanical Properties Distribution in Wood and a New Technique for Dendrochronology

The paper presents the results of scanning of mechanical properties of coniferous (common pine Pinus sylvestris) and deciduous (small-leaved lime Tilia cordata and common oak Quercus robur) trees wood using nanoi...

Yu. I. Golovin, A. I. Tyurin, A. A. Gusev, S. M. Matveev… in Technical Physics (2023)

Article

Strengthening of Ice Composites with Cellulose and Inorganic Nanoparticles

The development of the Arctic needs more and more materials for the construction of roads, crossings, bridges, portside unloading sites, and buildings for various purposes. In view of the obvious difficulties ...

Yu. I. Golovin, V. V. Rodaev, A. A. Samodurov, A. I. Tyurin… in Nanobiotechnology Reports (2023)

Article

Measurement of the Thermal Diffusivity of Optical Materials and Products by a New Thermographic Express Method That Does Not Require Cutting Samples Out of the Bulk

Thermal diffusivity a and thermal conductivity λ are important parameters for many structural and functional material applications. These parameters determine the intensity of heat transfer, the quality of the...

Yu. I. Golovin, A. A. Samodurov, D. Yu. Golovin, A. I. Tyurin… in Measurement Techniques (2023)

Article

New Measurement Method of Thermal Conductivity of Fluids

The paper proposes the new express method for the measurement of thermal conductivity of fluids, gels, and pastes using a measuring rod, one end of which is a hemispherical tip immersed in a fluid, and another...

D. Yu. Golovin, A. A. Samodurov, A. I. Tyurin, A. G. Divin… in Russian Physics Journal (2023)

Article

Profiling Mechanical Properties of Wood via Scratch Tests and Nanoindentation for Use in Dendrochronology

Radial profiles of the mechanical properties of crosscut wood are obtained using scratch tests and nanoindentation. The profiles correspond to the annual growth of the ring structure. The width of the annual g...

Yu. I. Golovin, A. A. Samodurov… in Bulletin of the Russian Academy of Science… (2022)

Article

Determination of the Thermal Diffusivity of Transparent Materials by a New Thermographic Express Method

The thermophysical characteristics of nonmetallic materials (in particular, thermal conductivity and thermal diff usivity) account for their heat-insulating properties, the quality of processing in various las...

Yu. I. Golovin, A. I. Tyurin, D. Yu. Golovin… in Journal of Engineering Physics and Thermop… (2022)

Article

Correlation between the Mechanical and Thermal Properties of Common Pine Wood (Pínus sylvéstris L.)

Correlations between the mechanical and thermal properties of the anisotropy of common pine wood with different humidities are identified. This allows quick assessment of mechanical properties, which usually r...

Yu. I. Golovin, D. Yu. Golovin… in Bulletin of the Russian Academy of Science… (2021)

Article

Nanoindentation as a Tool for High-Resolution Dendrochronology

Y. I. Golovin, A. I. Tyurin, D. Y. Golovin, A. A. Samodurov… in Russian Physics Journal (2021)

Article

The Relationship between the Mechanical Properties of Anisotropic Materials and Their Thermophysical Characteristics Using the Example of Pine Wood

The relationship between the mechanical properties of anisotropic materials and their thermophysical characteristics was experimentally revealed using the example of Scots pine (Pınus sylvéstris L) wood. By measu...

Yu. I. Golovin, A. I. Tyurin, D. Yu. Golovin, A. A. Samodurov… in Technical Physics Letters (2021)

Article

Determining the Temperature Diffusivity of Transparent Materials via a Modified Laser Flash Technique

A new thermographic express technique for determining the thermal diffusivity of transparent materials and optical components is described, and results from testing it on glasses and polymeric materials are pr...

Yu. I. Golovin, A. I. Tyurin, D. Yu. Golovin… in Bulletin of the Russian Academy of Science… (2020)

Article

Determination of Thermal Diffusivity by Nonstationary Spot Heating

A thermographic express method for determining the coefficient of thermal diffusivity (a) of platelike objects is presented. It may be regarded as a modification of, and the next step in, the evolution of the las...

D. Yu. Golovin, A. I. Tyurin, A. A. Samodurov, Yu. I. Golovin in Technical Physics Letters (2020)

Article

A New Rapid Method of Determining the Thermal Diffusivity of Materials and Finished Articles

A new nonstationary nondestructive rapid method of determining the thermal diffusivity of materials and finished articles has been suggested and tested experimentally without cutting out samples from them and ...

D. Yu. Golovin, A. G. Divin, A. A. Samodurov… in Journal of Engineering Physics and Thermop… (2020)

Article

Thermographic Control by New Methods of Multiscale Analysis of Nonstationary Thermal Fields

In this paper, we present the results of the application of new methods of monitoring and diagnostics based on a computer analysis of multiscale dynamic thermographic patterns. Depending on the size of the ins...

Yu. I. Golovin, A. I. Tyurin, D. Yu. Golovin, A. A. Samodurov in Inorganic Materials (2019)

Article

Determination of the Thermal Diffusivity of Materials by a Nondestructive Express Method with the Use of Step-By-Step Local Heating of the Surface and High-Speed Thermography

We propose an express method for measuring the thermal diffusivity of the materials of products that does not require cutting out of the samples of special shapes from the homogeneous mass of the product. The ...

D. Yu. Golovin, A. G. Divin, A. A. Samodurov, A. I. Tyurin… in Measurement Techniques (2019)

Article

New Express Method for Measuring the Thermal Diffusivity of Non-Metallic Materials on an Example of Zirconium Ceramics

D. Yu. Golovin, A. I. Tyurin, A. A. Samodurov, A. G. Divin… in Russian Physics Journal (2019)

Article

Radially-Symmetric Thermal Wave as a Source of Information on the State of Inhomogeneities in Plates and Sheaths

An experimental-computational method of non-stationary thermal diagnostics and non-destructive testing of metallic and non-metallic sheaths and plates, including their inner surfaces inaccessible for direct in...

Yu. I. Golovin, A. I. Tyurin, D. Yu. Golovin, A. A. Samodurov in Russian Physics Journal (2018)

Article

New Ways of Detecting Cracks, Delaminations, and Other Defects in Materials and Objects via High Frame-Rate Thermal Imaging

A number of advanced nondestructive thermographic tools are described that are based on the video recording of surfaces using thermal imaging cameras in which infrared radiation is induced by shortterm heating...

Yu. I. Golovin, A. I. Tyurin, D. Yu. Golovin… in Bulletin of the Russian Academy of Science… (2018)