METHODS OF ACTUAL INDENTER SHAPE DETERMINATION

摘要

Knowledge of the actual indenter shape (area function) is fundamental for the correct evaluation of measured indentation data. Various methods and models were developed for the determination of indenter area function. Nevertheless, these methods usually do not have clear geometrical interpretation and/or their application is based on some severe assumption so they cannot be applied generally. Basically, the shape of the indenter can be determined by two different procedures - indentation into reference materials with known mechanical properties or reconstruction of the tip by direct imaging methods, e.g. AFM.