The performance of Inconel 693 electrodes for processing an iron phosphate glass melt containing 26wt.% of a simulated low activity waste

2014 ◽  
Vol 444 (1-3) ◽  
pp. 323-330 ◽  
Author(s):  
Jen-Hsien Hsu ◽  
Joseph W. Newkirk ◽  
Cheol-Woon Kim ◽  
Richard K. Brow ◽  
Mark E. Schlesinger ◽  
...  
Keyword(s):  
Phosphate Glass ◽  
Iron Phosphate ◽  
Low Activity

scholarly journals Iron phosphate glass waste forms for vitrifying Hanford AZ102 low activity waste (LAW), part I: Glass formation model

2017 ◽  
Vol 458 ◽  
pp. 149-156 ◽  
Author(s):  
Chandra S. Ray ◽  
V.A. Samaranayake ◽  
Ali Mohammadkhah ◽  
Thomas E. Day ◽  
Delbert E. Day
Keyword(s):  
Phosphate Glass ◽  
Glass Formation ◽  
Iron Phosphate ◽  
Formation Model ◽  
Glass Waste ◽  
Waste Forms ◽  
Low Activity

Iron phosphate glass waste forms for vitrifying Hanford AZ102 Low Activity Waste (LAW), part II: Property-composition model

2018 ◽  
Vol 495 ◽  
pp. 107-116 ◽  
Author(s):  
Chandra S. Ray ◽  
V.A. Samaranayake ◽  
Ali Mohammadkhah ◽  
Thomas E. Day ◽  
Delbert E. Day
Keyword(s):  
Phosphate Glass ◽  
Iron Phosphate ◽  
Glass Waste ◽  
Waste Forms ◽  
Low Activity

Applicability of Iron Phosphate Glass Medium for Loading NaCl Originated From Seawater Used for Cooling the Stricken Power Reactors

2013 ◽  
Author(s):  
Hidekazu Kobayashi ◽  
Ippei Amamoto ◽  
Takuma Yokozawa ◽  
Teruo Yamashita ◽  
Takayuki Nagai ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Glass Transition ◽  
Phosphate Glass ◽  
Glass Formation ◽  
Coefficient Of Thermal Expansion ◽  
Glass Melting ◽  
Glass Network ◽  
Iron Phosphate ◽  
Chemical Durability ◽  
Raw Material

As the part of investigation for immobilization of the sludge as one of the radioactive wastes arising from the treatment of contaminated water at Fukushima Dai-ichi nuclear power plant, applicability of vitrification method has been evaluated as a candidate technique. The aim of this study is to evaluate the influence of NaCl as one of the main constituents of sludge, on glass formation and glass properties. Two kinds of iron phosphate glass (IPG) media in the xFe2O3-(100-x)P2O5, with x = 30 and 35 (mol%) were chosen and the glass formation, structure and properties including density, coefficient of thermal expansion, glass transition temperature, onset crystallization temperature and chemical durability of NaCl-loaded IPG were studied. The results are summarized as follows. Sodium chloride, NaCl could be loaded into IPG medium as Na2O and Cl contents and their loading ratio could be up to 19 and 15 mol%, respectively. Majority of Cl content of raw material NaCl was thought to be volatilized during glass melting. Loading NaCl into IPG induces to depolymerize glass network of phosphate chains, leads to decrease both glass transition and onset crystallization temperatures, and to increase coefficient of thermal expansion. NaCl-loaded IPG indicated good chemical durability in case of using 35Fe2O3-65P2O5 medium.

Effect on the structure and stability of iron phosphate glass with Sb and Te-ion loading for nuclear waste storage application

2021 ◽  
Vol 570 ◽  
pp. 121016
Author(s):  
Akhilesh C. Joshi ◽  
Mainak Roy ◽  
Dimple P. Dutta ◽  
Raman K. Mishra ◽  
Sher Singh Meena ◽  
...  
Keyword(s):  
Nuclear Waste ◽  
Phosphate Glass ◽  
Iron Phosphate ◽  
Nuclear Waste Storage ◽  
Structure And Stability ◽  
Waste Storage

scholarly journals Thermal properties of Na2O–P2O5–Fe2O3 polyphosphate glasses

2020 ◽  
Vol 142 (1) ◽  
pp. 203-209 ◽  
Author(s):  
Paweł Goj ◽  
Małgorzata Ciecińska ◽  
Magdalena Szumera ◽  
Paweł Stoch
Keyword(s):  
Thermal Properties ◽  
Phosphate Glass ◽  
Transformation Temperature ◽  
Glass Network ◽  
Iron Phosphate ◽  
Phosphate Glasses ◽  
Continuous Change ◽  
Glass Transformation ◽  
Immobilization Techniques ◽  
Iron Phosphate Glasses

Abstract Iron phosphate glasses are materials that can have many applications like durable matrixes in waste immobilization techniques, biomaterials, optoelectronic devices, etc. Their possible usage is related to their glass network and thermal properties. The influence of Na2O content on thermal properties and crystallization ability of iron phosphate glass of base composition 30 Fe2O3–70 P2O5 mol% were studied. Increasing the content of Na2O causes a decrease in transformation temperature and increase in ΔCp. Characteristic temperatures, thermal stability and crystallizing phases were determined. Increasing content of sodium causes depolarization of iron phosphate glass network which causes a continuous change in ΔCp and glass transformation temperature. Discontinuous change in some glass properties suggests structure rebuilding about 30 mol% of Na2O.

Sign in / Sign up

Export Citation Format

Share Document