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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...
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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...
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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...
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Article
Open AccessNanomechanical/Micromechanical Approach to the Problems of Dendrochronology and Dendroclimatology
The most widespread approach in dendrochronology (wood dating) and dendroclimatology (climate reconstruction) is based on measurement of the width of annual growth rings by analyzing optical images of wood cro...
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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 ...
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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...
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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...
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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...
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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...
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Article
A Review of the Mechanical and Thermal Properties of Microscale and Nanoscale Materials in Terms of Straintronics
The specificity of the mechanical and thermal properties (especially thermal conductivity) of crystalline, amorphous, and composite materials on the micro- and nanoscales is studied in terms of straintronics (...
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Article
Dynamic Thermography for Technical Diagnostics of Materials and Structures
The state of the art in technical diagnostics and nondestructive testing of materials and large-sized products by dynamic thermography methods is described. Special attention is paid to nondestructive rapid me...
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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...
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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...
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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...
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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 ...
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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...
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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 ...
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Article
New Express Method for Measuring the Thermal Diffusivity of Non-Metallic Materials on an Example of Zirconium Ceramics
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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...
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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...