Jemná keramika (speciální keramika, speciální technická keramika) - Termofyzikální vlastnosti keramických kompozitů - Stanovení jednorozměrné tepelné difuzivy flash metodou (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.10.2022
Designation standards: ČSN EN ISO 19629
Classification mark: 727557
Catalog number: 515177
Publication date standards: 1.10.2022
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This document describes the flash method for the determination of thermal diffusivity of ceramic matrix composites with continuous fibre reinforcement. In order to conform with the unidimensional heat transfer hypothesis, the experimental conditions are defined such that the material behaves in a homogeneous manner. This involves performing tests in one symmetry axis of the composite. The method is applicable to materials which are physically and chemically stable during the measurement, and covers the range of temperature from 100 K to 2 800 K. It is suitable for the measurement of thermal diffusivity values in the range 10-4 m2.s-1 to 10-7 m2.s-1