Fine ceramics compressive strength test

Compressive strength refers to the maximum compressive stress at which a sample breaks under uniform unidirectional compressive load. The compressive strength test of fine ceramics can be used to determine the compressive strength test of fine ceramics.
Zhongke Testing and Reliability Experiment Center has the capabilities of environmental testing and reliability performance testing of various fine ceramics, and provides professional compressive strength testing services for fine ceramics.

Fine ceramics can be divided into two categories: structural ceramics and functional ceramics.
Structural ceramics: high-temperature ceramics, high-strength ceramics, superhard ceramics, corrosion-resistant ceramics
Functional ceramics: electronic ceramics, superconducting ceramics, optical ceramics, bioceramics, magnetic ceramics, energy storage ceramics

1. Measure the diameter or cross-sectional size of the sample to the nearest 0.02 mm.
2. Carefully align the center of the sample and the contact block with the center of the pressure plate of the testing machine, and place a gasket between the sample and the contact block. Place a protective shield around the specimen to prevent specimen fragments from flying out during testing.
3. Continuously apply test force to the sample, the beam displacement rate is 0.2 mm/min, and record the critical load when the sample is damaged by compression.
4. For piezoelectric ceramics, the test should be carried out according to methods 1 to 3 after polarization for ten days.
5. For quasi-brittle ceramic and machinable ceramic samples, the damaged sample may undergo shear failure rather than crushing failure, and the sample should be retained for fracture analysis.
6. After each compression test, the contact block and pressure plate should be carefully cleaned to prevent debris from affecting the test of the next sample.

GB/T 8489-2006 Test method for compressive strength of fine ceramics
JIS R 1608-2003 Test method for compressive strength of high-performance ceramics
GB/T 1031-1995 Surface roughness parameters and their numerical values