How to Test the Mechanical Properties of Expanding Graphite

How to Test the Mechanical Properties of Expanding Graphite. The tensile strength test of expanding graphite includes the tensile strength limit, tensile elastic modulus, and elongation of the expanding graphite material. Below, the Baixing Graphite team introduces how to test the mechanical properties of expanding graphite:
In regards to the tensile strength tests on expanded graphite for mechanical properties, various methods can be employed, such as mechanical measurement, laser speckle, and interferometry. Through multiple tests and analyses, it has been found that conducting tensile tests on 125 worm-like graphite samples yields better data for tensile strength values. The tensile strength limit refers to the load that a test piece can withstand per unit area under tension, and it is one of the critical indicators for evaluating the mechanical properties of expanded graphite materials.
The tensile elastic modulus can be approximated by calculating the numerical value from the stress-strain curve obtained through tensile tests on 83 expanded graphite specimens using the secant method. The elongation percentage can be determined by conducting tests on 42 expanded graphite specimens, yielding statistical values for elongation.
Baixing Graphite's expanded graphite exhibits excellent properties with wide applications. Its high-temperature mechanical properties, also known as mechanical characteristics, include compressive strength, compressive modulus of elasticity, rebound ratio, and compressibility under high temperatures for a certain period of time.