Interaction Between the Edge Dislocation Dipole Pair and Interfacial Misfit Dislocation Network in Ni-Based Single Crystal Superalloys

2021 ◽  
pp. 111128
Author(s):  
Zhiwei Zhang ◽  
Qiang Fu ◽  
Jun Wang ◽  
Rong Yang ◽  
Pan Xiao ◽  
...  
Keyword(s):  
Single Crystal ◽  
Edge Dislocation ◽  
Misfit Dislocation ◽  
Dislocation Network ◽  
Dislocation Dipole

Misfit Dislocations in the Ilmenite (FeTiO3)-Hematite (Fe2O3) System

1980 ◽  
Vol 38 ◽  
pp. 212-213 ◽  
Author(s):  
K.P.D. Lagerlöf ◽  
A.H. Heuer ◽  
T.E. Mitchell
Keyword(s):  
Misfit Dislocation ◽  
Lattice Parameters ◽  
Dislocation Network ◽  
Misfit Dislocations ◽  
Space Group ◽  
Two Phases ◽  
Hematite Fe2o3

It has been reported by Lally et. al. [1] that precipitates of hematite (Fe2O3, space group R3c) in a matrix of ilmenite (FeTiO3, space group R3) are lens shaped and flattened along the [0001]-direction. The coherency across the interface is lost by the introduction of a misfit dislocation network, which minimizes the strain due to the deviation in lattice parameters between the two phases [2]. The purpose of this paper is to present a new analysis of this network.

scholarly journals The competitive nucleation of misfit dislocation dipole and misfit extended dislocation dipole in nanocomposites

2017 ◽  
Vol 228 (7) ◽  
pp. 2541-2554 ◽  
Author(s):  
Jianfeng Zhao ◽  
Jinlin Liu ◽  
Guozheng Kang ◽  
Linan An ◽  
Xu Zhang
Keyword(s):  
Misfit Dislocation ◽  
Dislocation Dipole ◽  
Extended Dislocation

On the formation of vacancies by edge dislocation dipole annihilation in fatigued copper

2011 ◽  
Vol 33 (10) ◽  
pp. 1369-1375 ◽  
Author(s):  
Steffen Brinckmann ◽  
Rakulan Sivanesapillai ◽  
Alexander Hartmaier
Keyword(s):  
Edge Dislocation ◽  
Dislocation Dipole

scholarly journals STEM beam channeling in BaSnO3/LaAlO3 perovskite bilayers and visualization of 2D misfit dislocation network

2020 ◽  
Vol 208 ◽  
pp. 112863
Author(s):  
Hwanhui Yun ◽  
Abhinav Prakash ◽  
Bharat Jalan ◽  
Jong Seok Jeong ◽  
K. Andre Mkhoyan
Keyword(s):  
Misfit Dislocation ◽  
Dislocation Network

3C-SiC Buffer Layers Converted from Si at a Low Temperature

1999 ◽  
Vol 572 ◽  
Author(s):  
H. M. Liaw ◽  
S. Q. Hong ◽  
P. Fejes ◽  
D. Werho ◽  
H. Tompkins ◽  
...  
Keyword(s):  
High Resolution ◽  
Low Temperature ◽  
Single Crystal ◽  
Misfit Dislocation ◽  
Surface Region ◽  
Buffer Layers ◽  
Misfit Dislocations ◽  
Lattice Strains ◽  
High Resolution Tem ◽  
Sic Films

ABSTRACTWe have obtained single-crystal 3C-SiC films via conversion of the surface region of Si (111) and (100) wafers at 970 °C by reaction with C2H4 in an MBE reactor. The major defects in the films were clusters, voids, and misfit dislocations. Investigation by high resolution TEM images showed low lattice strains in the epitaxial layer due to the formation of 1 misfit dislocation for every 4 to 5 regular SiC planes that are bonded to Si at the interface. The clusters and voids often occurred in pairs. A model for forming the void-cluster pairs is suggested.

STUDY ON MICROSTRUCTURES OF Bi(Pb)-Sr-Ca-Cu-O SUPERCONDUCTING WHISKERS

1993 ◽  
Vol 07 (06) ◽  
pp. 389-396 ◽  
Author(s):  
RUIKUN WANG ◽  
LIHONG SUN ◽  
ANSHENG LIU ◽  
YUNLONG GE ◽  
CHUANSHENG LIU ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Longitudinal Direction ◽  
Crystal Defects ◽  
Single Crystal Structure ◽  
Dislocation Network ◽  
Burgers Vector

The Bi(Pb)-Sr-Ca-Cu-O superconducting whisker has a composition of (BiPb) 2 × (SrCa) 3 Cu 2 O y and a layered single crystal structure in which the stacked layers with the same orientation have different widths. The longitudinal direction of the whiskers is along the a- or b-axis of the (BiPb) 2 (SrCa) 3 Cu 2 O y crystal. Crystal defects in the whiskers are mainly dislocations with Burgers vector of [010] or [001] and dislocation network. Some dislocation pairs with Burgers vector of [010] were observed in the bent whiskers.

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