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Fatigue Testing of Wire with Electrical Conductance Apparatus

Electrical wires are the most common form of interconnects between electrical devices. Wires are usually made of copper (and sometimes aluminum) due to copper’s ability to conduct electricity very well, ability to bend, and its cheap cost. Outside of material, wires can also be assembled in different ways. Wires can come be obtained in different sizes, usually denoted by gauges. As the wire diameter increases, the wire gauge decreases. Longevity of the wire will change with wire gauge. The difference in longevity can be compared by conducting a reciprocating linear test with the Nanovea Tribometer to simulate fatigue.

Fatigue Testing of Wire with Electrical Conductance Apparatus

Scratch Testing on Multi-Layered Thin Film

Coatings used extensively throughout multiple industries to preserve the underlying layers, to create electronic devices, or to improve surface properties of materials. Due to their numerous uses coatings are extensively studied, but their mechanical properties can be difficult to understand. Failure of coatings can occur in the micro/nanometer range from surface-atmosphere interaction, cohesive failure, and poor substrate-interface adhesion. A consistent method to test for coating failures is scratch testing. By applying a progressively increasing load, cohesive (e.g. cracking) and adhesive (e.g. delamination) failures of coatings can be quantitatively compared.

Scratch Testing on Multi-Layered Thin Film

3D Surface Analysis of a Penny

Currency is highly valued in modern society as it can be traded for goods and services. Currency, in the form of coins and paper bills, have been circulating around the hands of many people. With constant transfer of physical currency, deformation of the surface occurs. Using Nanovea’s 3D Profilometer, the topography of coins minted in different years were scanned and differences in the surface were investigated.

3D Surface Analysis of a Penny

Determining Spring Constant

A spring’s ability to store mechanical energy has a long history of use. From bows for hunting, door locks, or clocks, the technology has been around for many centuries. In modern times, springs still see many uses in automotive, jewelry, household appliances, and other industries. With large variety of uses, it is important to differentiate springs based on their mechanical properties.

Determining Spring Constant

Comparison of Ridge Spacing and Wear Rate on 3D Printed Materials

3D printed material is gaining rise due to its ability to create a large variety of shapes and features without the use of time consuming input. 3D printing does have its limitations, however, such as in the lack of materials that can be used and strength of products. To understand how the quality of 3D printed materials can be improved, the Nanovea Tribometer can be used to conduct wear testing. 

Comparison of Ridge Spacing and Wear Rate on 3D Printed Material

Roughness and Particle Diameter of Sandpaper

Sandpaper is a common commercially available product used as an abrasive. The most common
use for sandpaper is to remove coatings or to polish a surface with its abrasive properties. These
abrasive properties are classified into grits, each related to how smooth or rough of a surface
finish it will give. To achieve desired abrasive properties, manufactures of sandpaper must ensure
that the abrasive particles are of a specific size and have little deviation. To quantify the quality
of sandpaper, Nanovea’s 3D Non-Contact Profilometer can be used to obtain the Sa height
parameter and average particle diameter of a sample area.

Roughness and Particle Diameter of Sandpaper

Automated Large Area Profilometry of PCB

Scaling up of manufacturing processes is necessary for industries to grow and keep up with constantly increasing demands. As manufacturing process scales up, the tools used in quality control also need to be scaled up. These tools must be fast to keep up with the production rate, while still maintaining high accuracy to meet product tolerance limits. Here, the Nanovea HS2000 Profilometer, with Line Sensor, showcases its value as a quality control instrument with its fast, automated, and high-resolution large area profilometry capabilities.

Video Clip or App Note: Automated Large Area Profilometry of PCB

Dynamic Mechanical Analysis With Nanoindentation

The quality of corks depends heavily on its mechanical and physical property. Its ability to seal wine can be identified as these important factors: flexibility, insulation, resilience, and impermeability to gas and liquids. By conducting dynamic mechanical analysis (DMA) testing, its flexibility and resilience properties can be gauged with a quantifiable method. These properties are characterized with Nanovea Mechanical Tester’s Nanoindentaion in the form of Young’s modulus, storage modulus, loss modulus, and tan delta (tan (δ)). Other data that can be gathered from DMA testing are phase shift, hardness, stress, and strain of the material.

Dynamic Mechanical Analysis With Nanoindentation

Brake Pad Temperature Tribology

A brake pad is a composite material made up of multiple ingredients, that must be able to satisfy a large number of safety requirements. Ideal brake pads have high coefficient of friction (COF), low wear rate, minimal noise, and remain reliable under varying environments. To ensure the quality of brake pads are able to satisfy their requirements, tribology testing can be used to identify critical specifications. The importance on the reliability of brake pads are placed very high; safety of passengers should never be neglected. Therefore, it is key to replicate operating conditions and identify possible points of failure. With the Nanovea Tribometer, a constant load is applied between a pin, ball, or flat and a constantly moving counter material. The friction between the two material is collected with a stiff load cell, allowing collection of material properties at different loads and speeds and tested in high temperature, corrosive, or liquid environments.

Brake Pad Temperature Tribology

Conchology Topography Measurement Using 3D Profilometry

Conchology topography, by scanning the whole surface of an oyster shell, the Nanovea HS2000 Line Sensor will display its ability to work with large samples with abnormal geometries. Reflectivity, transparency, and angles do not affect the data collected with our technology, making 3D Non-Contact Profilometry ideal for all types of samples. Another difficulty that lies with profiling an oyster shell lies in its lack of flat base. Samples typically needs to be securely mounted to the stage to minimize wobbling as the stage move. This usually requires additional sample preparation or fixtures to be used. The smooth air bearing stages on the Nanovea HS2000 Line Sensor, however, drastically minimizes stage noise. Its motorized control of the x, y, and z stages also allows for ease in extending varying height measurement. The extended measurement shown in this study, allows our instrument to capture a full surface that is beyond its pen height range limits (approximately 4mm).

Conchology Topography Measurement Using 3D Profilometry