Properties characterization, license tests, certification of structural ceramic and glass-reinforced plastic materials, material properties control during the process of component production
Research and experimental basis of the Research-and-Production Complex (RPC) consisting of test beds, scientific equipment and soft hardware makes it possible to conduct detailed investigations of physicotechnical properties and certification of materials, integrated tests and experimental development of components and separate parts from composite materials, glass and structural ceramics.
The following range of activities is carried out in the laboratories of RPC with the use of own standardized methods and state standards:
Determination of material properties
Á) mechanical properties
bending, compression and tensile strength of ceramic and composite materials, including these characteristics at -100 - 1500°ó;
adhesive-bonded joint strength in shear tests, characteristics of brittleness and crack resistance (fracture energy, critical stress intensity factor, etc.);
elastic characteristics of ceramic and composite materials in bending, compression and tensile tests (Young's modulus, Poisson's constant)
b) optical properties
spectrophotometric and thermospectrophotometric analysis of materials properties: measurement of regular (0.2-25 μm) and diffuse (0.2-2.5
μm) transmission and directed reflection spectra, measurement of radiation spectra (0.4-25 μm) within 20-1500°ó;
qualitative and quantitative infrared (IR) spectroscopy, ultraviolet (UV) and visible band spectroscopy, radiation resistance of materials;
photoelastic analysis: determination of annealing and hardness extent, annealing and stress relaxation area limits in glasses;
refractometric analysis: determination of refraction indexes, average variance and homogeneity of glasses using these parameters;
calorimetric analysis: determination of chromaticity coordinates, color shade, color value under different sources of light, glitter, gloss.
c) Thermophysical properties
Temperature dependences of specific heat capacity, heat conductivity factor and thermal diffusivity of ceramic and composite materials, including those at 20-1200°ó; thermal-expansion coefficient at (-100)-900°ó; high-temperature strength up to 1200°ó;
Differential thermal analysis.
Material structure analysis
Characterization of material structural properties: density, porosity, water absorption, shrinkage, binder content, specific surface, mass-average size of dispersed media particles;
Electronic microscopy analysis: examination of the general character of the object overall surface structure under low-power magnification and detailed examination of any area of interest under high-power magnification, determination of morphology and size of material microstructure elements (grains, pores, inclusions, inhomogeneities, etc.) peculiarities of their distribution over the surface and through the volume of a specimen, observation of internal structure defects in crystals and grains, determination of mutual arrangement of phases, elemental composition of phases and inclusions;
Quantitative and qualitative X-ray phase analyses.
Investigation of dielectric and radio-technical characteristics
(loss-angle tangent, dielectric permittivity over a wide temperature and frequency range).
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