Published September 2000 | Version v1
Journal article Metadata-only

Silicate matrix for actinide wastes

Creators

  • 1. Inst. Geologii Rudnykh Mestorozhdenij, Petrografii, Mineralogii i Geokhimii RAN, Moscow (Russian Federation)
  • 2. Vserossijskij Nauchno-Issledovatel'skij Inst. Neorganicheskikh Materialov im. A.A. Bochvara, Moscow (Russian Federation)

Description

Using methods of electronic microscopy, of chemical and X-ray phase analyses one investigated into specimens of silicate phases with structures of gar net and apatite-britholite characterized by high capacity as to the components of high-active waste (HAW). One determined phase composition, chemical and radiation stability of silicate matrices filled with waste substitutes (La, Ce, Nd, Eu, Zr) in proportion corresponding to the composition of actinide-zirconium-rare earth fractions of HAW. Paper shows compliance of the investigated specimens of garnet-britholite matrices with the requirements imposed on the quality of HAW solidified forms

Abstract (Russian)

С использованием методов электронной микроскопии, химического и рентгенофазового анализа исследованы образцы силикатных фаз со структурой граната и апатита-бритолита, обладающих высокой емкостью по отношению к компонентам высокоактивных отходов (ВАО). Определены фазовый состав, термическая, химическая и радиационная устойчивость силикатных матриц, заполненных имитаторами отходов (La, Ce, Nd, Eu, Zr) в пропорции, отвечающей составу актинид-цирконий-редкоземельной фракции ВАО. Показано соответствие изученных образцов гранат-бритолитовых матриц требованиям, предъявляемым к качеству отвержденных форм ВАО

Additional details

Additional titles

Original title (Russian)
Silikatnaya matritsa aktinidsoderzhashchikh otkhodov

Publishing Information

Journal Title
Doklady Akademii Nauk - Rossijskaya Akademiya Nauk
Journal Volume
374
Journal Issue
2
Journal Page Range
p. 242-246
ISSN
0869-5652
CODEN
DAKNEQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
34010493
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Descriptors DEI
ALPHA-BEARING WASTES; CHEMICAL COMPOSITION; CHEMICAL PROPERTIES; HIGH-LEVEL RADIOACTIVE WASTES; LEACHING; MATRIX MATERIALS; PHASE STUDIES; RADIATION EFFECTS; RADIOACTIVE WASTE DISPOSAL; SENSITIVITY; SILICATE MINERALS; THERMAL DEGRADATION
Descriptors DEC
DISSOLUTION; MANAGEMENT; MATERIALS; MINERALS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTE MANAGEMENT; RADIOACTIVE WASTES; SEPARATION PROCESSES; WASTE DISPOSAL; WASTE MANAGEMENT; WASTES

Optional Information

Notes
15 refs., 3 tabs.