2. Relationship between debris type and wear

The field of wear debris analysis can range from simply evaluating their mass to providing a detailed description of their morphology and performing elemental spectral analysis. Various levels and aspects can also be considered:

• gravimetry: total weight of debris;

• particle count: determination of the number of debris larger than a certain size;

• particle shape: classification into generic shapes representative of the particle type of the fracture mode;

• the color of the particles