Refractory Testing (RUL/CIC, HMOR)
HMOR 422 D/3- Apparatus for testing MOR
Modulus of Rupture (MOR) of refreactrory ceramics up to 1500°C
The modulus of rupture (MOR) is an important variable in the characterization of refractory materials. Determination of the maximum load at high temperatures is a property which, along with other thermophysical properties, is an important parameter for quality control and development of furnace linings.
The modulus of rupture is defined as the maximum stress a rectangular test piece of specific dimensions can withstand in a 3-point bending test until it breaks, expressed in N/mm2 or MPa.
The International Standard Test Method is described in ISO 5013; test piece dimensions: 150 mm x 25 mm x 25 mm.
For determination of the modulus of rupture of refractories up to a temperature of 1500°C and a maximum load of 5000 N (60 N/mm2), NETZSCH offers the model 422 D/3. This model is designed for continuous testing with a 3-point bending device.
With optional devices for load and deformation measurement and/or constant deformation rate, additional information about the limits of elasticity and crack propagation in ceramic test pieces can be obtained.
Technical Specification:
Temperature range: RT to 1500°C (1450°C at HMOR 422 E/4)
Heating elements: SiC
Load: 1 N to 5000 N (2.0 to 12.5 N/s, switchable)
Bending measuring range: 10000 µm (2500 µm at 422 E/4)
Sample dimensions: 150 mm x 25 mm x 25 mm (45 mm x 4.5 mm x 3.5 mm at 422 E/4)
