首页|Crystalline phosphates for HLW immobilization- composition, structure, properties and production of ceramics. Spark Plasma Sintering as a promising sintering technology

Crystalline phosphates for HLW immobilization- composition, structure, properties and production of ceramics. Spark Plasma Sintering as a promising sintering technology

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  • NSTL
  • Elsevier
Available publications on crystalline materials used to immobilize HLW and actinides have been analyzed. Select compounds and solid solutions covered in this paper are phosphates of the following structural families: monazite, xenotime, kosnarite (NZP),apatite and britholite, langbeinite, whitlockite and thorium phosphate diphosphate (TPD). These materials have been shown to be fit for "nature-like" disposal (ex-cept TPD), they have a wide spectrum of isomorphic substitutions of cations and/or anions, and high heat, chemical, and irradiation stability. They can be also used in geoenvironmental engineering. The studies taken into consideration follow the materials science approach that rests on the "composition - structure - synthesis - property" basis. The analyzed papers describe materials synthesized using Spark Plasma Sintering, a process that results in rapid formation of virtually poreless ceramics and improves environ-mental safety both at stage of HLW immobilization and during long-term storage.(c) 2021 Published by Elsevier B.V.

radioactivitywasteimmobilizationmineral-likephosphatesstructureisomorphismceramicsSpark Plasma SinteringporelessLOW THERMAL-EXPANSIONRHOMBOHEDRAL NAZR2(PO4)(3) TYPESTRONTIUM ZIRCONIUM-PHOSPHATEMINERAL-LIKE MATRICESMONAZITE LNPO(4) LNRARE-EARTHSOLID-SOLUTIONSMECHANICAL-PROPERTIESRADIATION-DAMAGETHERMOPHYSICAL PROPERTIES

Orlova, A., I

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Lobachevsky State Univ Nizhny Novgorod

2022

10.1016/j.jnucmat.2021.153407

Journal of Nuclear Materials

Journal of Nuclear Materials

EISCI
ISSN：0022-3115
年,卷(期)：2022.559
  • 15
  • 430