Josef Matyas

Pacific Northwest National Laboratory

Projects

Evaluation of Cold Cap Reaction Layer in a High-Level Waste Melter for DOE Tank Wastes

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Josef Matyas

Project type

Exploratory Research

Reacted chemical batch from a formulated tank waste (non-radioactive)combined with glass formers will be examined for crystalline changes and glass formulation at varied temperatures that will be…

Determination of iron redox in the spinel crystals by 57Fe-Mossbauer spectroscopy

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Josef Matyas

Project type

Limited Scope

The different shapes and sizes of spinel crystals [Fe, Ni, Mn, Zn, Sn][Fe, Cr]2O4 can precipitate from borosilicate glasses during vitrification of high-level radioactive waste (HLW) in the Joule…