Stress-driven phase transformation and the roughening of solid-solid interfaces

Autor:	Angheluta, L., Jettestuen, E., Mathiesen, J., Renard, F., Jamtveit, B.
Rok vydání:	2007
Předmět:	Condensed Matter - Materials Science Condensed Matter - Statistical Mechanics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.100.096105
Popis:	The application of stress to multiphase solid-liquid systems often results in morphological instabilities. Here we propose a solid-solid phase transformation model for roughening instability in the interface between two porous materials with different porosities under normal compression stresses. This instability is triggered by a finite jump in the free energy density across the interface, and it leads to the formation of finger-like structures aligned with the principal direction of compaction. The model is proposed as an explanation for the roughening of stylolites - irregular interfaces associated with the compaction of sedimentary rocks that fluctuate about a plane perpendicular to the principal direction of compaction. Comment: (4 pages, 4 figures)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0711.2004 Zobrazit plný text záznamu View this record from Arxiv