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Norm
ÖNORM EN 821-2
Issue date: 1997 09 01
Advanced technical ceramics - Monolithic ceramics - Thermo-physical properties - Part 2: Determination of thermal diffusivity by the laser flash (or heat pulse) method
This Part of EN 821 specifies a method for the determination of thermal diffusivity of
advanced monolithic technical ceramics, to an acairacy of approximately i 5 % . It...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 26 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This Part of EN 821 specifies a method for the determination of thermal diffusivity of
advanced monolithic technical ceramics, to an acairacy of approximately i 5 % . It is
suitable for the measurement of thermal diffusivity values in the range 0,l mm2/s to 1000
mm2/s at temperatures greater than - 180 "C.
Annex A gives the mathematical derivation of the calculations, and Annex B contains
instniction on actions necessary when the calculations cannot be made in the usual way.
NOTE 1 : It is not advisable to exceed the temperature at which the test piece was
manufactured.
NOTE 2 : This method involves the use of a high powered pulsed laser System or
high energy photoflash equipment as well as high vacuum and high temperature
furnace capability. Such equipment therefore should be operated within established
safety procedures. See EN 60825.
ÖNORM EN 821-2
1997 09 01
Advanced technical ceramics - Monolithic ceramics - Thermo-physical properties - Part 2: Determinati...
Norm
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