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Fracture toughness using IIT |
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Cracking study using scratch testing |
Techniques:
Nanoindentation (instrumented indentation)
Scratch testing
Cracking (crack generation) can be studied using either instrumented indentation or scratch testing depending on the applications.
Fracture toughness, K1C, can be computed when long enough cracks are generated by the indentation process. In some cases, the indentation curve will also show the exact load at which cracking occured.
