Back كوريوم (مفاعل نووي) Arabic Korium (materiál) Czech Corium (Reaktortechnik) German Corium (reactor nuclear) Spanish Korio Basque کوریوم (رآکتور هستهای) Persian Corium French Kórium Hungarian Corium Italian 炉心溶融物 Japanese
&sq=albert einstein&lang=en&file=File:Wiki_letter_w.svg){kind=small} | This article's lead section may be too short to adequately summarize the key points. (December 2022) |
&sq=albert einstein&lang=en&file=File:Graphic_TMI-2_Core_End-State_Configuration.png)
- Inlet 2B
- Inlet 1A
- Cavity
- Loose core debris
- Crust
- Previously molten material
- Lower plenum debris
- Possible region depleted in uranium
- Ablated incore instrument guide
- Hole in baffle plate
- Coating of previously molten material on bypass region interior surfaces
- Upper grid damaged top plate
Corium, also called fuel-containing material (FCM) or lava-like fuel-containing material (LFCM), is a material that is created in a nuclear reactor core during a nuclear meltdown accident. Resembling lava in consistency, it consists of a mixture of nuclear fuel, fission products, control rods, structural materials from the affected parts of the reactor, products of their chemical reaction with air, water, steam, and in the event that the reactor vessel is breached, molten concrete from the floor of the reactor room.