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COMPUTATIONAL MECHANICS OF COMBINED PLANAR DEFECTS: EXTRINSIC + INTRINSIC FAULTING IN 3C CLOSE PACKED CRYSTAL STRUCTURES.

Recently, extrinsic faulting has been discussed within the framework of computational mechanics allowing to derive expressions for the statistical complexity, entropy density and excess entropy as a function of faulting probability. In this contribution the analysis is extended to consider the combi...

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Publicado en:Revista Cubana de Física Vol. 35; no. 1; pp. 3 - 10
Autores principales: ARAGON-FERNANDEZ, BEATRIZ, ESTEVEZ-RAMS, E., LORA-SERRANO, R., PENTÓN-MADRIGAL, A.
Formato: Artículo
Publicado: Universidad de La Habana jul2018
Materias:
Computational mechanics
Crystal structure
Entropy
Probability theory
Magnitude (Mathematics)
Acceso en línea:Ver este registro en EBSCOhost
Sumario:Recently, extrinsic faulting has been discussed within the framework of computational mechanics allowing to derive expressions for the statistical complexity, entropy density and excess entropy as a function of faulting probability. In this contribution the analysis is extended to consider the combined presence of two planar faults type within the random faulting model. Extrinsic+intrinsic faults are considered. The ε-machine description of the faulting dynamics is presented. Entropic magnitudes are derived as well as expressions for the hexagonality and the probability of consecutive symbols in the Hägg coding. The analysis continues the study started with individual faulting types under the computational mechanics approach.
Recientemente, la mecánica computacional ha sido utilizada para discutir defectos cristalinos extrínsecos en estructuras compactas, en esta contribución el análisis es extendido para incluir la presencia simultánea de defectos intrínsecos. Ambos tipos de defectos cristalinos (extrínsecos+intrínsecos) se asumen dentro del modelo de defectos aleatorios no interactuantes. La descripción está basada en la construcción de la maquina de ε, ello permite introducir medidas entrópicas, así como la expresión para la hexagonalidad. El análisis continúa el estudio ya comenzado sobre defectos individuales desde el punto de vista de la mecánica computacional.