ČSN EN ISO 19629   (727557) Jemná keramika (speciální keramika, speciální technická keramika) - Termofyzikální vlastnosti keramických kompozitů - Stanovení jednorozměrné tepelné difuzivy flash metodou

Anotace textu normy ČSN EN ISO 19629   (727557)

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.