Industries-AutomotiveThe automotive industry is a constantly growing necessity in today’s society. With a constant demand for newer cars with increased functionality, new models with more amenities are released every year. Many of the automotive parts have a specific purpose, but also need to hold up under various conditions. At Ebatco, our scientists will run all of the material tests you need in order to ensure both the material functionality and durability of the automotive parts. Our professional reports will make it easy to determine if your product has the desired characteristics, or if changes are necessary to be made.

Because all automobiles are comprised of different materials, it is necessary to make sure that each one of them meets the necessary requirements so that consumers are pleased with their purchases. The lab experts at Ebatco are extremely helpful when testing material properties for product development and material verification. With our help, your automobile can be proven to meet the demands of rugged terrains, cold temperatures, and wear resistance. Our team is capable of performing mechanical, physical, chemical, and other tests to ensure that the product can be better understood.

Ebatco offers all of the micro- and nano- testing your company desires to rise above the competition in automotive design. Our lab services can help with development and verification of the material properties required for ideal performance and durability of all of your automotive parts. Our lab experts offer top quality testing on many components of the automotive industry, such as batteries, windshields, and lubricated parts. If you have any questions about the services or instrumentation available at Ebatco, feel free to call or email and a member of our team will be able to further assist you.

Representative Applications:

Alloy identification Analysis of battery components Analysis of glass coatings Analysis of paints and coatings Effects of lubrication
Friction and wear of moving parts Roughness analysis of machined parts Stick-slip between wiper and windshield Viscosity of fuels


For more information please read our application notes:
Advancing, Receding and Roll-off Angle Measurements through Sliding Angle Method
Coating Scratch Resisance and Interfacial Adhesion Evaluation through Nanoscratch
Coefficient of Thermal Expansion Measurement using TMA
Concentration and Size Particles in a Diamond Polishing Slurry
Fracture Failure Analysis of Steel Wire
Interfacial adhesion evaluation of paint coating on Pepsi Can through Scratch Testing
Melting Temperature and Latent Heat of Fusion of Indium
Micro Contact Angle Measurements on Single Particles, Filaments and Patterned Surfaces
Nano micro Pore Size and Pore Size Distribution Measurement
Nanoindentation for hardness and elastic modulus measurements at nanoscale
Nanoparticle Sizing through Dynamic Light Scattering
Optical Inspection and Profiling of Defects on a Coated Wafer Surface
Scratch Failure Characteristics of DLC Coating on M2 Steel
SEM EDS Analysis on Scratch Failure of PTFE Coated Stainless Steel Guide Wire
Simultaneous Thermal Analysis of the Decomposition of Calcium Oxalate
Specific Heat Capacity of Refractory Material
Thermogravimetric Analysis of Calcium Oxalate
Time-Temperature Superposition Using Dynamic Mechanical Analysis
Viscosity of Motor Oil as a Function of Temperature
Wear Resistance Evaluation and Debris Generation Study through Nano Wear
Zeta Potentials of Solid Surfaces


Concentration and Size Particles in a Diamond Polishing Slurry


The manufacture of polishing slurry requires reliable information on the particles’ size, size distribution and concentration for desired polishing results. On the industrial scale, such information has been traditionally obtained via sieving for particles larger than 70 μm and sedimentation for particles smaller than 60 μm. However, when higher accuracy is needed, especially when particle concentration in slurry becomes necessary, more advanced techniques such as the particle characterization technique based on the so-called Coulter Principle is required.


The Coulter Principle is a method that uses an electric field to count and size particles dispersed in a conducting liquid. When a particle passes through a small orifice, the electrical conductance across the aperture changes relative to the amount of volume displaced by the particle. This results in measurable electrical pulses which can be used to determine the size of the particles in a suspension. Unlike laser diffraction methods, the Coulter Principle yields exact particle counts which can be used to determine the sizes and their concentrations of the particles in a slurry.




A high quality test instrument based on the Coulter Principle, such as the Multisizer 4 Coulter Counter equipped in Ebatco’s Nano Analytical Testing Laboratory (NAT Lab), is capable of characterizing a wide range of particle sizes and concentrations. Since particle size measurements are limited based on the size of the measurement orifice, the Multisizer 4 comes equipped with a number of different aperture tubes which allow the instrument to measure particle sizes ranging from 200 nm to 1.6 mm. This broad detection range allows such an instrument to be used for a wide variety of different applications including hematology, paints, ceramics, pharmaceuticals, abrasives, food and beverages, etc.




The data presented in Table 1 is for the 1 µm polycrystalline diamond polishing slurry tested using the NAT Lab’s Multisizer 4 Coulter Counter. Figure 1 shows the actual particle number per milliliter at different sizes. By using a known sampling volume, the concentrations of suspended particles at different sizes were successfully measured.