发明名称 |
Corrosion resistant zirconium alloy absorber material |
摘要 |
A burnable absorber controls axial power peaking or moderator temperature coefficient while additional elements are added to improve strength and/or corrosion resistance in a zirconium alloy containing erbium in a range of from about 0.05 to 2 wt. % selected from the group consisting of a naturally occurring distribution of isotopically enriched erbium-167 and a combination thereof; in a range of from a measurable amount up to 1.4% tin; from 0.2 to 0.5 wt. % iron; from 0.07 to 0.25 wt. % chromium; in a range of from a measurable amount up to 0.6 wt. % niobium; in a range of from a measurable amount up to 0.5 wt. % vanadium; 50-120 ppm silicon; 1000-2200 ppm oxygen and a balance of zirconium. Alternatively, the erbium can be replaced by gadolinium in a range of from about 0.05 to 6 wt. % selected from the group consisting of a naturally occurring distribution of gadolinium isotopes, isotopically enriched gadolinium-157 and a combination thereof.
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申请公布号 |
US5241571(A) |
申请公布日期 |
1993.08.31 |
申请号 |
US19920906357 |
申请日期 |
1992.06.30 |
申请人 |
COMBUSTION ENGINEERING, INC. |
发明人 |
PATI, SATYA R.;CORSETTI, LAWRENCE V. |
分类号 |
C22C16/00;G21C3/07 |
主分类号 |
C22C16/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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