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Ti元素改性ZrCo合金在CO雜質(zhì)氣氛中吸氫行為及影響機制
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中國工程物理研究院材料研究所,中國工程物理研究院材料研究所,中國工程物理研究院材料研究所,中國工程物理研究院材料研究所,中國工程物理研究院材料研究所,中國工程物理研究院材料研究所,中國工程物理研究院材料研究所

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TK19

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國家自然科學(xué)基金青年科學(xué)基金項目（項目號21601165）


Effect of Ti modification on properties of hydrogenation of ZrCo in the presence of CO contaminant gas
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Insititute of Materials, China Academy of Engineering Physics,,,,,,,

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Mechanism and effect of Ti modification on the helium behavior of ZrCo alloys

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    摘要:

    采用EDS和XRD表征了Ti改性ZrCo合金的相結(jié)構(gòu)及表面元素分布,采用飛行時間二次離子質(zhì)譜(TOF-SIMS)以及程控升溫?zé)峤饷摳?TPD)方法研究少量CO(1.05%vol.CO+98.95%vol.H2氣氛)對Zr0.8Ti0.2Co合金氫化行為的影響及作用機制。結(jié)果表明：在純氫環(huán)境下ZrCo合金和Zr0.8Ti0.2Co合金飽和吸氫時間分別少于2分鐘和少于4分鐘,飽和吸氫容量分別為1.8wt%和1.9wt%。而在含1.05%CO的氫中ZrCo合金和Zr0.8Ti0.2Co合金在2500min內(nèi)均未能達(dá)到吸氫飽和,吸氫容量分別下降到0.91wt%和0.48wt%,Ti改性導(dǎo)致ZrCo合金在CO雜質(zhì)氣氛中的吸氫動力學(xué)性能下降。實驗表明通過773K、0.5h熱抽空處理可恢復(fù)至毒化前吸氫性能。

    Abstract:

    The phase structure and element distribution of surface of ZrCo alloys with Ti modification were investigated by EDS and XRD. Effect and mechanism of Ti modification on hydrogenation behavior of ZrCo alloys with poisoned by CO was investigated via TOF-SIMS and TPD. The results showed that the hydrogenation period of ZrCo and Zr0.8Ti0.2Co alloys are less than 2 minutes and 4 minutes under the pure hydrogen atmosphere, and the capacity of hydrogenation could reach 1.8wt% and 1.9wt%, respectively, whereas the capacity of hydrogenation of ZrCo and Zr0.8Ti0.2Co just obtained 0.91wt% and 0.48wt% within 2500 minutes in the presence of CO contaminant gas, which meant the hydriding kinetics of ZrCo decreased with Ti modification. And performance of posioned sample could revert with treatment of vaccuming at 773K for 0.5h

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張光輝,唐濤,桑革,寇化秦,熊義富,吳文清,蔚勇軍. Ti元素改性ZrCo合金在CO雜質(zhì)氣氛中吸氫行為及影響機制[J].稀有金屬材料與工程,2017,46(11):3366~3373.[zhangguanghui, tangtao, sangge, kouhuaqin, xiongyifu, wuwenqing, weiyongjun. Effect of Ti modification on properties of hydrogenation of ZrCo in the presence of CO contaminant gas[J]. Rare Metal Materials and Engineering,2017,46(11):3366~3373.]
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  • 收稿日期:2016-08-24
  • 最后修改日期:2016-11-11
  • 錄用日期:2016-12-02
  • 在線發(fā)布日期: 2017-12-13
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