Description: PCT is called pressure cooker test, which is a method of accelerated aging test in high temperature and high pressure environment. It tests the durability of samples by placing them in high temperature and high pressure environment and aging tests under different humidity conditions. PCT test is usually used to test the performance of electronic components, batteries, plastics, coatings and other materials, and to test whether they can run stably for a long time in high temperature and high pressure environment.
HAST, also called high accelerated stress test, is also a method of accelerated aging test. The accelerated aging rate is faster than that of PCT when it is carried out in high temperature and high humidity environment. HAST test is usually used to test the performance of packaging materials, semiconductor devices, electronic components and so on, and to test whether they can withstand high temperature and high humidity environment.
Personal experience: PCT and HAST tests are commonly used accelerated aging test methods, but which method to choose depends on the characteristics and application environment of the tested materials. During the test, we should also pay attention to control the test temperature, humidity and other parameters to ensure the accuracy and reliability of the test results.
Off-topic expansion: Besides PCT and HAST, there are many other accelerated aging test methods, such as THB test and DH test. These testing methods are widely used in different application fields.