Milestone Report - M3FT-15OR03120215 - Recommend HIP Conditions for AgZ

Bruffey, Stephanie H.¹  Jubin, Robert Thomas¹ 

[1]Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

关键词: MORDENITE;    WASTE FORMS;    IODINE;    HOT PRESSING;    CONVERSION;    TEMPERATURE RANGE 1000-4000 K;    MATERIALS;    CHEMICAL COMPOSITION;    TEMPERATURE DEPENDENCE;    DENSITY;    X-RAY DIFFRACTION HIP;    hot isostatic pressing;    silver mordenite;    waste form;    iodine;   

DOI  :  10.2172/1239759
RP-ID  :  ORNL/SPR--2015/503
PID  :  OSTI ID: 1239759
Others  :  Other: AF5805010
Others  :  NEAF327
Others  :  TRN: US1600567

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

The purpose of this study was to continue research to determine if HIPing could directly convert I-Ag⁰Z into a suitable waste form. Fiscal year (FY) 2015 work completed studies of Phase IIA, IIB, and IIC samples. Product consistency testing (PCT) of Phase IIA samples resulted in iodine release below detection limit for six of twelve samples. This is promising and indicates that a durable waste form may be produced through HIPing even if transformation of the zeolite to a distinct mineral phase does not occur. From PCT results of Phase IIA samples, it was determined that future pressing should be conducted at a temperature of 900?��C. Phase IIC testing continued production of samples to examine the effects of multiple source materials, compositional variations, and an expanded temperature range. The density of each sample was determined and x-ray diffraction (XRD) patterns were obtained. In all cases, there was nothing in the XRD analyses to indicate the creation of any AgI-containing silicon phase; the samples were found to be largely amorphous.