It is important that make clear to materials property. In this study, with three Indentation Fracture method suggested in JIS, we evaluate brittleness materials. We suggest a new equation by Nnanoindentation method. And I inspect of the evaluation method that I suggested by comparing it with a conventional evaluation method. In this study, we use Sillicon (Miller index 100) for specimen, used Vickers Indentation and Berkovich Indentation.
