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arXiv 1012.0295cond-mat.mtrl-scicond-mat.dis-nn
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应力腐蚀断裂过程中二氧化硅中深水渗透的证据

Evidence of deep water penetration in silica during stress corrosion fracture

F. Lechenault, C. L. Rountree, F. Cousin, J. -P. Bouchaud, L. Ponson, E. Bouchaud

摘要:

利用中子反射率实验测量了应力腐蚀断裂面下的重水层厚度。我们表明,渗透深度为65-85 ångströms,这表明存在的$\approx$ 100 ångströms的损伤区在其扩展过程中延伸到裂纹尖端的前方。这种损伤区大小的估计与最近的其他结果是一致的。

英文摘要:

We measure the thickness of the heavy water layer trapped under the stress corrosion fracture surface of silica using neutron reflectivity experiments. We show that the penetration depth is 65-85 ångströms, suggesting the presence of a damaged zone of $\approx$ 100 ångströms extending ahead of the crack tip during its propagation. This estimate of the size of the damaged zone is compatible with other recent results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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