About 200 years after Mohs – Nanoscratching LiB3O5
✍ Scribed by P. Paufler; I. P. Shakhverdova; R. S. Bubnova; S. K. Filatov; D. C. Meyer
- Book ID
- 102124585
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 356 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0232-1300
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Though simple scratch hardness tests after Mohs are still used today, the development of diamond nanoscratching equipment offers new possibilities to meet demands of modern nanotechnology. Preceding approaches to assign hardness values to materials are briefly reviewed, and scratch hardness is related to indentation hardness. Taking single‐crystalline LiB~3~O~5~ as an example, the dependence of scratch morphology on the direction of scratching is demonstrated quantitatively. The coefficient of friction depends on normal load and varies between 0.25 and 0.37. Moreover, it is oscillating during scratching thus reflecting processes at nanoscale. Dislocation etch pits were observed due to scratching. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)