| http://www.w3.org/ns/prov#value | - For example, the activation process can include heating in a non-oxidizing atmosphere, e.g., of nitrogen, argon, helium or other non-oxidizing gas, followed by switching of the atmosphere to an oxidizing atmosphere, such as carbon dioxide or steam for a brief duration, before switching to a non-oxidizing atmosphere and cooling to ambient temperature (e.g., room temperature).
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