Micro/Macro Indentation, Scratch and Wear

Design with the vision of providing clients with ease of use, longevity with low maintenance cost and repeatable accurate results; the micro/macro module features a unique patented optical depth sensor, a sturdy motorized vertical ball screw lead and a high accuracy load cell.
The load cell allows true feedback to ensure accuracy of the load applied. The control is quick because the load is applied vertically and directly with no use of pivot point. The micro/macro modules can therefore be used on rubber materials even passed the point of failure. Furthermore, the optical white light sensor directly attached to the diamond mount allows direct measuring of the depth of the diamond in reference to the surface of the sample. This most accurate technique allows quicker tests and eliminates depth errors caused by surface roughness or sinking on soft materials when an alternative physical reference technique is used. 

Nanovea's technique provides also true depth measurements during scratch or wears testing which is not possible when a ring or skate reference is used. The Optical Profiler sensor performs as a full 3D Non-Contact Profiling tool which provides a 3D measurement of scratches, indents or wear tracks. Additionally, the tool can be used for all other types of profiling including surface roughness or height of steps. The modules provide micro and macro scales testing during micro scratch, micro indentation and micro wear testing modes. Each mode of testing provides wide range of testing that can provide properties such as hardness, creep, elastic modulus, stress-strain curves, yield strength, fatigue, fracture toughness, wear rate, friction coefficient, scratch and marring resistance, plastic/elastic deformation among other tests. In combination with integrated x-y motorized table, one can test at very specific locations or do a full mapping of properties across a chosen area. The higher loads are ideal for testing hard coatings (DLC, TiN, TiC) such as the one used in the tooling industry. However the more sensitive loads of the micro range are ideal for the characterization of industrial coatings; ranging from plasma processed layers used in semiconductor and optical technology, to decorative and protective coatings used for automobile parts and consumer goods.

During the Microindentation process an indenter tip is driven into the sample by applying an increasing load up to a targeted value. The measured load is then gradually decreased until partial, or complete, relaxation of the sample has occurred. The load and displacement are recorded continuously throughout this process to produce a load-displacement curve. Adding a pause at maximum load allows studying of creep properties. Other loading modes are possible including constant load multi-cycle for measuring fatigue or plastic-elastic deformation; and increasing load multi-cycle for obtaining properties versus depth.

Standards:
• ASTM E384 • ASTM G171 • ASTM E2546 
• ASTM B933 • ISO 14577 • DIN 50359

Properties Analyzed During Microindentation:
• Hardness • Elastic modulus • Creep • Stress-Strain Curve 
• Fracture Toughness
• Yield Strength • Compression • Fatigue • Puncture Resistance
• Martens Hardness versus Depth • Plastic & Elastic Deformations 
• Visual Hardness and many others possible.

Software Features:
• Recipes 
• Export Raw Data and Images 
• Real Time Display 
• Automatic Reporting 
• Multi-Language Support 
• Compare Curves and Results Advanced Microindentation Automation:
• FastMap: Mapping of Hardness & Elastic Modulus
• Automatic Testing: Quick Approach, Automatic Surface Detection, Accurate Point of Contact, Average and Standard Deviation of Results
• Wizard: Revolutionary Approach 
• Automatic Parameter Selection
• Auto Calibration: Ensures accurate data
• Multi Sample Handling
• Seamless and Accurate Movement between AFM, Optical Profiler,
Microscope and Indenter

Indenters: (Diamond, WC and many other materials)
• Berkovich • Vickers 
• Cube Corner 
• Conical-Spherical 
• Knoop 
• Knife
• 1 to 6mm balls

Sample(s) Holders and Environmental Conditions:
• 150°C Sample Heating 
• Custom Liquid Cups 
• Custom 3 Point Bending or Puncture 
• Custom Sample & Indenter Holder