The concept of axial weak twins
Source abstract
Abstract
It is generally assumed that the parent-twin interface is a fully invariant plane. The calculations of the rational interfaces of the type I twins and irrational interfaces of the type II twins are based on this hypothesis. Recently, some asymmetric facets and unconventional twins have been observed in magnesium that do not agree with this paradigm. Here, we show that these features can be explained by admitting that some of the facets of the interface or the interface itself may be a rational plane that can be slightly distorted and transformed into a new rational plane with non-equivalent Miller indices. Relaxing the invariant plane assumption permits to broaden the usual lattice theory of twinning and include these unconventional "weak" interfaces and twins. A computer program was written to calculate the type I, type II and weak twins. It explains the asymmetric facets, the unconventional deformation twins, and the “deformation graining” phenomenon recently reported in magnesium.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Quantum chaos and dynamical systems · Molecular spectroscopy and chirality
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
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