GB/T 40398.1-2021 specifies the test method for friction and wear properties of carbon-carbon composite carbon materials under standardized laboratory conditions, applicable for the performance determination of carbon fiber reinforced carbon matrix composites. The standard defines the test principle, specimen preparation, procedures, and data calculation requirements. Its core approach involves using a friction testing machine to simulate the area energy load and mass energy load under actual operating conditions, equipped with micrometers, vernier calipers, and high-precision analytical balances. Axial load is applied through inertial braking, while parameters such as braking torque and friction coefficient are synchronously collected. By combining the changes in specimen thickness and mass before and after the test, the friction and wear performance of the material is evaluated, providing a technical basis for the research and development of related products and quality control.
| Status | Active | ||
|---|---|---|---|
| CCS | Q50 | ICS | 29.050 |
| Release Date | 2021-08-20 00:00:00 | Implementation Date | 2022-03-01 00:00:00 |
