This video explains how the relationships between compaction pressure, tensile strength and solid fraction are studied using the compaction triangle.
Tablet hardness, or breaking strength, is an important and widely used parameter to control the tablet manufacturing process. In many cases it is used as a surrogate measure for compression force during manufacture, particularly if the tablet press is unable to measure compression force.
It is an important control parameter because compression affects every tablet property including disintegration, dissolution and friability. In some cases stability is also affected.
Watch video for full explanation