Question 16 · LDEK · Fixed appliances

Nickel-titanium alloy:

  1. A. may assume two types of crystal structures: martensite - in low temperatures and austenite - in high temperatures.
  2. B. may assume two types of crystal structures: martensite - in high temperatures and austenite - in low temperatures.
  3. C. exhibits shape memory.
  4. D. true answers are A and C.
  5. E. true answers are B and C.
Hint

Match each crystal phase with its temperature range and remember what the transformation between them makes possible.

The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.

Create a free account Log in

More questions on Orthodontics