SPS technique for ionizing radiation source fabrication based on dense cesium-containing core

被引：29

作者：

Papynov, E. K. ^{[1
,2
]}

Shichalin, O. O. ^{[1
,2
]}

Mayorov, V. Yu. ^{[1
]}

Kuryavyi, V. G. ^{[1
]}

Kaidalova, T. A. ^{[1
]}

Teplukhina, L. V. ^{[1
]}

Portnyagin, A. S. ^{[1
,2
]}

Slobodyuk, A. B. ^{[1
]}

Belov, A. A. ^{[1
,2
]}

Tananaev, I. G. ^{[1
,2
,3
]}

Avramenko, V. A. ^{[1
]}

Sergienko, V. I. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Chem, Far Eastern Branch, 159,Prosp 100 Letiya Vladivostoka, Vladivostok 690022, Russia

[2] Far Eastern Fed Univ, 8 Sukhanova St, Vladivostok 690091, Russia

[3] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, 1 Leninsky Prosp, Moscow 199071, Russia

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2019年 / 369卷

基金：

俄罗斯科学基金会;

关键词：

Natural zeolite; Ceramics and glass-ceramics; Immobilization; Radionuclides; Radiocesium; Hydrolytic stability; Ionizing radiation sources; Spark plasma sintering; STRUCTURE; PREPARATION; IMMOBILIZATION; POLLUCITE; VITRIFICATION; PHOSPHATES; FORM;

D O I：

10.1016/j.jhazmat.2019.02.016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The work presents a novel method for fabrication of the high-quality ionizing radiation source (IRS), which is promising to replace unsafe commercial products based on (CsCl)-Cs-137 prohibited by IAEA. Spark plasma sintering (SPS) technique has been applied to produce dense ceramic and glass-ceramic matrixes from Cs-containing ((similar to)13.5 wt.%) zeolite yielding in non-dispersible cores sealed in the container of radiation-resistant steel (J93503, US standard). One-stage SPS regimes to provide high-quality product have been optimized: sintering temperature < 1000 C, heating and holging duration 13 and 5 min, respectively, pressure 24.5 MPa. XRD, SEM, EDX, BET, XFS and solid-state MAS NMR 133Cs methods prove exceptional physico-chemical and mechanical characteristics of the obtained materials, namely: density 99.8% from theoretical, compressive strength (similar to)477 MPa, leaching rate 10(-4)-10(-6)g cm(-2) day(-1). Results of the investigation can be promising for fabrication of the IRS cores on a large scale as done for similar Russian products RSL, IGI-C, M37C, GID-C.

引用

页码：25 / 30

页数：6

共 33 条

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