Localized Deformation and Fracture Behaviors in InP Single Crystals by Indentation

The indentation-induced deformation mechanisms in InP(100) single crystals were investigated by using nanoindentation and cross-sectional transmission electron microscopy (XTEM) techniques. The results indicated that there were multiple “pop-in” events randomly distributed in the loading curves, whi...

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Detalles Bibliográficos
Autores principales: Chiu, Yi-Jui, Jian, Sheng-Rui, Liu, Ti-Ju, Le, Phuoc Huu, Juang, Jenh-Yih
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6315416/
https://www.ncbi.nlm.nih.gov/pubmed/30469471
http://dx.doi.org/10.3390/mi9120611
Descripción
Sumario:The indentation-induced deformation mechanisms in InP(100) single crystals were investigated by using nanoindentation and cross-sectional transmission electron microscopy (XTEM) techniques. The results indicated that there were multiple “pop-in” events randomly distributed in the loading curves, which were conceived to arise primarily from the dislocation nucleation and propagation activities. An energetic estimation on the number of nanoindentation-induced dislocations associated with pop-in effects is discussed. Furthermore, the fracture patterns were performed by Vickers indentation. The fracture toughness and the fracture energy of InP(100) single crystals were calculated to be around 1.2 MPa·m(1/2) and 14.1 J/m(2), respectively.

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