5.4.2 Coefficient
of linear expansion
The thermal coefficient of linear
expansion 
[10^-6 K^-1] of technical ceramics is usually less than that
of steel or grey cast-iron, with the exception of zirconium
oxide, forsterite and MgO. This must be taken into account
in composite construction.
When comparing the linear expansion of different materials,
it is important to note the temperature range, e.30-100
for figures relevant to the range from 30 to 100 °C.
Test our procedures for determining coefficients of thermal
expansion are specified in DIN EN 821-1 and DIN EN 60 672-2.
Figure 92: A guide to the flexural strength and coefficient
of expansion of selected materials
|
|
