Extrudate radial crush strength

Table IV. Extrudate Radial Crush Strength Summary of Revised Results...

Measurement for tablets, spheres, extrudates, monoliths, and so on, is quite simple. A single particle or unit representative of the lot is placed between parallel plates of a device capable of exerting compressive stress, and the force necessary to crush the material is noted. Tablets, extrudates, or monoliths can be placed within the plates so as to measure axial or radial crush strength. Naturally, a sufficient number of particles must be tested to obtain proper statistics. The method cannot be reliably used for granular or other materials with irregular shapes. 

Figure 1. Method of test for radial crush strength of extruded catalyst shapes.

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