Deep Cryogenic Treating - Tempering - Processing Terms

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Glossary of terms

Cryogen = a substance for obtaining low temperatures. I.e., a refrigerant. In our case, LN₂ or liquid nitrogen.
Cryo = Kryos from the Greek, meaning cold, freezing.
Cryogenic = of or relating to the production of very low temperatures.
Cryogenics = A branch of physics that deals with the production and effects of very low temperatures.
Cryonics = The practice of freezing humans who are not curable by current medical technology, in the hope that ways may be found to bring them back to life at some future time when ways of repairing the damage caused by the freezing process have been developed, as well as cures for the diseases or other causes of death which necessitated their cryonics suspension. See www.alcor.org
Tempering = In heat treatment, to reheat hardened steel or hardened cast iron to some temperature below the eutectoid temperature for the purpose of decreasing hardness and increasing toughness. I.e. "to soften".

Definitions from Webster's New Collegiate Dictionary, ASM Metals Handbook and Alcor.

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