Fracture of single crystals having layered morphology / Panfilov P,Titov AN // INTERNATIONAL JOURNAL OF FRACTURE. - 2004. - V. 128, l. 1-4. - P. 153-157.

ISSN/EISSN:

0376-9429 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The mechanism for relaxation of elastic energy in layered crystals (where interlayer glide is possible) under a point load is discussed. Titanium dichalcogenides are chosen as materials with covalent interatomic bonds, while the Ir-Sn compound is a metallic single crystal. All studied samples have layered morphology with similar parameters, such as the thickness of the sample and the thickness of a single layer. It was found that penetration of a diamond pyramid induces mechanical twins around the indent, whereas the appearance of cracks is a very rare phenomenon. In contrast with bulk samples, cracks in layered crystals move on complicated trajectories, which do not coincide with low-index crystallographic directions. Besides, their growth is limited by the surface single layer. Gliding between neighbouring layers effectively suppresses the propagation of cracks via the interlayer boundary. Glide may be considered an irreversible shift, which prevents the fracture of a material.

Author keywords:

MECHANICAL-BEHAVIOR; COMPOUND

DOI:

10.1023/B:FRAC.0000040978.1513

Web of Science ID:

ISI:000224641100018

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL-AUG
Note	International Conference on Fracture at Multiple Dimensions, Moscow, RUSSIA, JUN 23-26, 2003
Publisher	KLUWER ACADEMIC PUBL
Address	VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
Language	English
Keywords-Plus	MECHANICAL-BEHAVIOR; COMPOUND
Research-Areas	Materials Science; Mechanics
Web-of-Science-Categories	Materials Science, Multidisciplinary; Mechanics
ResearcherID-Numbers	Panfilov, Peter/B-4027-2014 Titov, Alexander/K-4328-2013
ORCID-Numbers	Panfilov, Peter/0000-0001-9068-049X Titov, Alexander/0000-0003-3636-2604
Number-of-Cited-References	3
Usage-Count-Since-2013	4
Journal-ISO	Int. J. Fract.
Doc-Delivery-Number	864NV