Authors: Yuanjie Huang
Dislocations and dislocation dynamics are the cores of material plasticity. In this work, we focus on and explore electric forces caused by external electric field upon dislocations and intrinsic electric forces between dislocations. Here we found that there exist a threshold electric field above which the electric field-induced force can enable dislocations glide and to one’s surprise, being subject to the identical electric field, some dislocations move in one direction but others move reversely, which are in agreement with experimental observations and may be the microscopic physical mechanism of electroplasticity. Besides the classical known mechanic force, an important intrinsic electric force exists between dislocations, which is uncovered here for the first time and has been neglected since discovery of dislocations. The electric forces are short-range and apparent when the distance between dislocations is only several nanometers. These findings maybe assist people in understanding correlated physical phenomena, for instance, eletroplasticity, understanding actual underlying physics of plastic deformations and designing next-generation nano-devices.
Comments: 17 Pages.
[v1] 2018-08-01 01:01:47
Unique-IP document downloads: 30 times
Vixra.org is a pre-print repository rather than a journal. Articles hosted may not yet have been verified by peer-review and should be treated as preliminary. In particular, anything that appears to include financial or legal advice or proposed medical treatments should be treated with due caution. Vixra.org will not be responsible for any consequences of actions that result from any form of use of any documents on this website.
Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.