PRELIMINARY STUDY OF METHODS TO CHEMICALLY BIND ZINC

Korinko, P.

关键词: COBALT;    CONTAMINATION;    COPPER;    HYDRIDES;    HYDROGEN;    SCREENS;    SUBSTRATES;    TESTING;    THERMODYNAMICS;    ZINC;   

DOI  :  10.2172/1025513
RP-ID  :  SRNL-STI-2011-00349
PID  :  OSTI ID: 1025513
Others  :  TRN: US201120%%765

学科分类：再生能源与代替技术

美国|英语

来源: SciTech Connect

【 摘 要 】

To address the {sup 65}Zn contamination issue in the TEF, a multi-task experimental program was initiated. The first two experimental tasks were completed. The results of the third experimental task are reported here. This task was conducted to determine if the zinc vapors could be chemically bound on two non hydrogen active substrates. Based on a thermodynamic study copper and cobalt were the most favorable for capturing zinc without forming hydrides. Within the experimental parameters tested, which include temperatures of 350, 400, and 450 C at pressures of nominally 20-40 millitorr, the zinc deposited on the both copper screen and cobalt rods but did not react to form a compound. The conditions that were tested are not prototypic and additional testing under higher vacuum conditions, i.e., .01 millitorr, may enhance the reactivity of the surfaces and is recommended.