Reliability

In accelerated tests that raise temperature to shorten life test time, which model is often used to express the relationship between temperature and lifetime?

  1. AMoore's law
  2. BArrhenius model
  3. COhm's law
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Answer: B. Arrhenius model

The Arrhenius model holds that the rate of degradation reactions is proportional to exp(−Ea / kT) (Ea: activation energy), expressing that lifetime shortens exponentially as temperature rises. It is used to estimate lifetime at actual operating temperatures from results of tests at high temperature.

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