What is the 10% rule for nanoindentation? - Micro Materials UK

The 10% rule for nanoindentation states that the indentation depth should not exceed 10% of the total thickness of the material or thin film being tested. This rule helps ensure that the hardness measurement reflects the properties of the material itself rather than being influenced by the underlying substrate.

Why is the 10% Rule Important?

1. Avoids Substrate Effect – If the indentation is too deep, the hardness value may be affected by the substrate rather than just the thin film.
2. Ensures Accurate Measurements – Shallow indentation keeps the focus on the material’s surface properties.
3. Minimizes Pile-Up and Sink-In Errors – These deformation effects can distort results if the indentation is too deep.

For immediate assistance, you can reach us by phone or email. Our team is always happy to answer any queries you have, big or small. Check our contact details below:

• Phone: +441978261615
• Email: info@micromaterials.co.uk
• Office Address: Willow House • Yale Business Village • Ellice Way • Wrexham • LL13 7YL • United Kingdom
• Business Hours : We operate from 08:30am to 05:00pm Monday through Friday, and we aim to respond to all messages within 24 hours.