ScanningWear - Wear Testing | Bruker

ScanningWear - An Overview

ScanningWear testing is a feature enabling research into wear resistance of coatings and films at the nanoscale. The capability is standard on all Hysitron TS Series and TI Series instruments, providing a complementary technique to nanoindentation and scratch.

How ScanningWear Works

The wear patterns are created by raster scanning the sample with a given force, predefined by the user. A scan can consist of a single pass or multiple passes over the same area within one test.

By applying a known force and selecting the number of passes over which this force is applied, the amount of material that is removed during the wear scan can be measured post-test using the in-situ imaging technique.

ScanningWear enables the ability to wear at different loads and carry out several wear experiments on one sample as show in Figure 1. This experiment involved several individual wear tests carried out at increasing loads and number of passes on a hard drive's DLC film coating. The amount of material removed in each wear test was measured using in-situ imaging (see Figure 2).

The precise positioning that in-situ SPM imaging provides also enables nanomachining and nanopatterning on surfaces, as shown in Figure 3. In this study, two wear patterns were nanomachined in lanthanum oxide. One pattern consisted of a 5 μm x 5 μm square, the other a 1.25 μm x 5 μm rectangle. The patterns were placed less than 1 μm apart, the oxide layer was removed to selectively reveal the substrate.


Nanowear Test on DLC Coating | Bruker

Figure 1. ScanningWear test on diamond-like carbon (DLC) coating on a computer hard disk drive with 15 μN, 30 μN, and 45 μN loads and 1, 5, and 10 passes, respectively.

Wear Volumes | Bruker

Wear volumes measured as a function of wear force and number of passes on DLC coating corresponding to image shown in Figure 1.

Nanowear Test on LaO Coating | Bruker

Figure 3. 5 μm × 5 μm square and 5 μm × 1.25 μm rectangle less than 1 μm apart in LaO coating.


Test Equipment for Wear Resistance

A wide variety of test equipment and application-specific techniques are available to perform wear testing. For general information about nanoindentation test equipment, see our Hysitron Nanoindenter Overview page.

Hysitron Standalone Instruments for Wear Resistance Testing

Hysitron TI 980 TriboIndenter | Bruker

TI 980 TriboIndenter

Bruker's most advanced nanomechanical and nanotribological test instrument, operating at the intersection of maximum performance, flexibility, reliability, sensitivity and speed.

Hysitron TI Premier | Bruker

TI Premier

Versatile nanomechanical and nanotribological test instrument, supporting a broad range of hybrid and correlative characterization techniques.

Hysitron TS 77 Select Nanoindenter | Bruker

TS 77 Select

Dedicated nanomechanical test instruments, providing an essential toolkit of core nanoscale mechanical characterization techniques.

Hysitron Instruments Interfaced to Microscopy Systems for Wear Resistance Testing

Hysitron TS 75 TriboScope | Bruker

TS 75 TriboScope

Quantitative, rigid-probe nanoindentation and nanotribological characterization on your existing AFM.