was tested by using a Shore A durometer (Frank GmbH, Hamburg, Germany) according to ISO 868.
If the filler is less resistant to penetration than the thermoset matrix, the filler will lower the indentation hardness
of the composite .
Mar and scratch resistance appears to be independent of Tukon and other indentation hardness
results, which is a little surprising.
The indentation hardness
represents a measure of the average pressure under the indenter tip and is calculated from the force necessary to push a rigid indenter into the material.
The authors examined Flexidone's properties such as gelling curve, viscosity stability, indentation hardness
, tensile strength and more.
1, micro indentation hardness
experiments of $355JR steel have shown the increase of indentation hardness
with the decrease of depth.
It is not as simple as a relationship to indentation hardness
; a scratch incident is dynamic, whereas an indentation hardness
test is static.
The Brinell indentation hardness
test was performed with a 1 mm diameter steel ball, with loads 49 and 98 N and loading time 30 sec:
This brochure contains durometers and durometer systems that cover the entire spectrum of indentation hardness
testing of rubber-like materials.
Volume three of the 15-volume series documents practices and test methods for measuring crack growth behavior and fatigue in metals, the effect of temperature and stress relaxation, elastic properties, indentation hardness
, residual stress, grain size, and specimen preparation.
First, the specimen thickness and indentation hardness
of the conditioned foam after a recovery time are measured.
The output of these hardness testers is typically a single indentation hardness
value that is a measure of the relative penetration depth of the indentation tip into the sample.