SELF-ORGANIZED CRITICALITY OF THE FRACTURE PROCESSES ASSOCIATED WITH HYDROGEN PRECIPITATION IN NIOBIUM BY ACOUSTIC-EMISSION

被引：50

作者：

CANNELLI, G ^{[1
]}

CANTELLI, R ^{[1
]}

CORDERO, F ^{[1
]}

机构：

[1] CNR,IST ACUST OM CORBINO,I-00189 ROME,ITALY

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.70.3923

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The statistical analysis of the acoustic signals, emitted by hydrogenated Nb samples during hydrogen precipitation from solid solution, reveals that the distribution of their amplitudes follows the Gutenberg-Richter power law, N(A'> A) is similar to A(-c) with c=0.9 over more than 2 orders of magnitude. This behavior can be considered as evidence that fracture processes due to hydride precipitation in the Nb-H system determine a self-organized critical state.

引用

页码：3923 / 3926

页数：4

共 21 条

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