MECHANISM OF DEUTERIUM CRACKING IN PALLADIUM

Acta Metall Sin

1992, Vol. 28

Issue (10): 36-40 DOI:

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MECHANISM OF DEUTERIUM CRACKING IN PALLADIUM

SUN Dalin; LEI Yongquan; CHEN Yanglin; WU Jing; WANG Qidong (Zhejiang University; Hangzhou)

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SUN Dalin; LEI Yongquan; CHEN Yanglin; WU Jing; WANG Qidong (Zhejiang University; Hangzhou). MECHANISM OF DEUTERIUM CRACKING IN PALLADIUM. Acta Metall Sin, 1992, 28(10): 36-40.

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Abstract After 290 h electrochemically deuterium charged, the density of dislocations in well-annealled Pd increased from 10~8/cm~2 to 10~(12)/cm~2 above, and a large amount of bubble-like structure or cracks have been observed by optical and transmission electronic microscopes. The mechanism of deuterium cracking was considered to be the formation of D_2 due to the segregation and recombination of deuterium atoms around dislocations. XRD results showed that the lattice constant of Pd increased from 0.3890 to 0.4034 nm.

Key words: deuterium cracking Pd

Received: 18 October 1992

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1992/V28/I10/36

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