silica2098: Nanoindentation measurements data

In OEFPIL: Optimal Estimation of Function Parameters by Iterated Linearization

Nanoindentation measurements data

Description

Load and depth measured with Berkovich diamond tip on fused silica material. Data contains only cutted part of unloading indentation curve from silicaBerk data (20-98 %, as recommended in ISO 14577 standard). The relationship between Load (F) and Depth (h) is given by equation F = \alpha (h - h_p)^{m}, where h_{p} is permanent indentation depth after removal of the load, \alpha is fitting constant related to the indenter geometry and power law exponent m should be from (1,2) interval.

Usage

silica2098

Format

The data frame contains two columns:

Depth

nanoindentation depth, in nanometers.

Load

load, in milinewtons.

Source

Czech Metrology Institute, Brno, Czech Republic.

References

ISO/IEC: 14577-1:2015 Metallic materials – Instrumented indentation test for hardness and materials parameters – Part 1: Test method (ISO/IEC, Internation Organisation for Standardisation, 2015).

Examples

attach(silica2098)
plot(Depth, Load, main = 'Graph of nanoindentation data', xlab = 'Depth (nm)', ylab = 'Load (mN)',
col = 'darkgreen', cex = 1)

OEFPIL documentation built on Sept. 9, 2025, 5:45 p.m.