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synroc
Synroc, a portmanteau of "synthetic rock", is a means of safely storing radioactive waste. It was pioneered in 1978 by a team led by Dr Ted Ringwood at the Australian National University, with further research undertaken in collaboration with ANSTO at research laboratories in Lucas Heights.
==Manufacture==
Synroc is composed of three titanate minerals – hollandite, zirconolite and perovskite – plus rutile and a small amount of metal alloy. These are combined into a slurry to which is added a portion of high-level liquid nuclear waste. The mixture is dried and calcined at to produce a powder.
The powder is then compressed in a process known as Hot Isostatic Pressing (HIP), where it is compressed within a bellows-like stainless steel container at temperatures of .
The result is a cylinder of hard, dense, black synthetic rock.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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