Calcium-borosilicate glass-ceramics wasteforms to immobilize rare-earth oxide wastes from pyro-processing

被引：29
作者：
Kim, Miae [1 ,2 ]
Heo, Jong [1 ,2 ,3 ]
机构：
[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 790784, Gyeongbuk, South Korea
[2] Pohang Univ Sci & Technol POSTECH, Div Adv Nucl Engn, Pohang 790784, Gyeongbuk, South Korea
[3] Adama Sci & Technol Univ, Dept Mat Engn, Adama, Ethiopia
来源：
JOURNAL OF NUCLEAR MATERIALS | 2015年 / 467卷
基金：
新加坡国家研究基金会;
关键词：
Glass-ceramics; Waste disposal; Radioactive waste; Rare earth; Calcium silicate; IRON PHOSPHATE-GLASS; SILICATE; MCC-1;
D O I：
10.1016/j.jnucmat.2015.09.040
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Glass-ceramics containing calcium neodymium(cerium) oxide silicate [Ca2Nd8-xCex(SiO4)(6)O-2] crystals were fabricated for the immobilization of radioactive wastes that contain large portions of rare-earth ions. Controlled crystallization of alkali borosilicate glasses by heating at T >= 750 degrees C for 3 h formed hexagonal Caesilicate crystals. Maximum lanthanide oxide waste loading was >26.8 wt.%. Ce and Nd ions were highly partitioned inside Caesilicate crystals compared to the glass matrix; the rare-earth wastes are efficiently immobilized inside the crystalline phases. The concentrations of Ce and Nd ions released in a material characterization center-type 1 test were below the detection limit (0.1 ppb) of inductively coupled plasma mass spectroscopy. Normalized release values performed by a product consistency test were 2.64.10(-6) g m(-2) for Ce ion and 2.19.10(-6) g m(-2) for Nd ion. Results suggest that glass-ceramics containing calcium neodymium(cerium) silicate crystals are good candidate wasteforms for immobilization of lanthanide wastes generated by pyro-processing. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：224 / 228
页数：5
相关论文
共 26 条
  • [1] Immobilization of Lanthanide Oxides Waste from Pyrochemical Process
    Ahn, B. G.
    Park, H. S.
    Kim, I. T.
    Cho, Y. J.
    Lee, H. S.
    [J]. ASIAN NUCLEAR PROSPECTS 2010, 2011, 7 : 529 - 533
  • [2] American Society for Testing and Materials (ASTM), 2002, C128594 ASTM
  • [3] [Anonymous], 2008, C128502 ASTM
  • [4] Studies on thermal and mechanical properties of monazite-type ceramics for the conditioning of minor actinides
    Arinicheva, Y.
    Bukaemskiy, A.
    Neumeier, S.
    Modolo, G.
    Bosbach, D.
    [J]. PROGRESS IN NUCLEAR ENERGY, 2014, 72 : 144 - 148
  • [5] Crystallization of neodymium-rich phases in silicate glasses developed for nuclear waste immobilization
    Caurant, D.
    Majerus, O.
    Loiseau, P.
    Bardez, I.
    Baffier, N.
    Dussossoy, J. L.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2006, 354 (1-3) : 143 - 162
  • [6] Caurant D., 2009, Glasses, Glass-Ceramics and Ceramics for Immobilization of Highly Radioactive Nuclear Wastes
  • [7] Cheon-Woo Kim，, 2013, [Journal of Nuclear Fuel Cycle and Waste Technology, 방사성폐기물학회지], V11, P1, DOI 10.7733/jkrws.2013.11.1.1
  • [8] Fabrication and physical properties of lanthanide oxide glass wasteform for the immobilization of lanthanide oxide wastes generated from pyrochemical process
    Choi, Jung-Hoon
    Cho, In-Hak
    Eun, Hee-Chul
    Park, Hwan-Seo
    Cho, Yung-Zun
    Lee, Ki-Rak
    Park, Geun-Il
    Kim, Song-Hyun
    Shin, Chang-Ho
    Kim, Jong-Kyung
    [J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2014, 299 (03) : 1731 - 1738
  • [9] Chemically durable iron phosphate glass wasteforms
    Day, DE
    Wu, Z
    Ray, CS
    Hrma, P
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 241 (01) : 1 - 12
  • [10] The immobilization of high level radioactive wastes using ceramics and glasses
    Donald, IW
    Metcalfe, BL
    Taylor, RNJ
    [J]. JOURNAL OF MATERIALS SCIENCE, 1997, 32 (22) : 5851 - 5887
123