Microband Dislocation Substructure: Formation and Evolution with Deformation

2014 ◽  
Vol 1013 ◽  
pp. 67-71 ◽  
Author(s):  
Nina Koneva ◽  
Ludmila Trishkina ◽  
Marina Fedorischeva ◽  
Eduard Kozlov
Keyword(s):  
Electron Microscopy ◽  
Plastic Deformation ◽  
Dislocation Substructure ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Large Plastic Deformation ◽  
Substructure Formation ◽  
Formation And Evolution

In the paper on a base of electron microscopy study a dynamic of evolution of dislocation substructures (DSS) arising on a stage large plastic deformation is examined. Microband dislocation substructure is a foundation of this consideration. Formation and evolution at deformation of this substructure for Cu-Al and Cu-Mn alloys are considered.

Transmission Electron Microscopy Study of Ingaas/Gaas Structural Evolution Near the Stranski-Krastanow Transformation

1999 ◽  
Vol 570 ◽  
Author(s):  
J. Wellman ◽  
T. George ◽  
R. Leon ◽  
S. Fafard ◽  
J. Zou ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Structural Evolution ◽  
Sharp Decrease ◽  
Structural Data ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Transmission Electron ◽  
Size Evolution ◽  
Formation And Evolution

ABSTRACTAn experimental study of the microstructure during formation and evolution of MOCVD-grown In0.6Ga0.4As/GaAs quantum dots (QDs) was undertaken to provide a more thorough understanding of the underlying growth principles. Transmission Electron Microscopy (TEM) was used to examine the evolution of the In0.6Ga0.4As/GaAs system in order to correlate photoluminescence (PL) spectra with structural data. In particular, we have examined the QD size evolution, capped and uncapped, and its possible contribution to the slight QD PL blueshift observed before QD saturation. TEM studies in the QD coalescence regime clarify the microstructural origins of the sharp decrease in QD PL due to large, incoherent islands observed in AFM and TEM images.

In situtransmission electron microscopy study of plastic deformation and stress-induced voiding in Al–Cu interconnects

1997 ◽  
Vol 82 (4) ◽  
pp. 1563-1577 ◽  
Author(s):  
D. Jawarani ◽  
H. Kawasaki ◽  
I.-S. Yeo ◽  
L. Rabenberg ◽  
J. P. Stark ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Plastic Deformation ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Cu Interconnects

In situtransmission electron microscopy study of plastic deformation in passivated Al–Cu thin films

1997 ◽  
Vol 82 (1) ◽  
pp. 171-181 ◽  
Author(s):  
D. Jawarani ◽  
H. Kawasaki ◽  
I.-S. Yeo ◽  
L. Rabenberg ◽  
J. P. Stark ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Plastic Deformation ◽  
Microscopy Study ◽  
Electron Microscopy Study

Factors influencing adhesive bonding at the bone/implant interface

1992 ◽  
Vol 50 (2) ◽  
pp. 1114-1115
Author(s):  
Julie A. Martini ◽  
Robert H. Doremus
Keyword(s):  
Electron Microscopy ◽  
Adhesive Bonding ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Bone Implant ◽  
Factors Influencing ◽  
Lr White ◽  
Transmission Electron ◽  
New Zealand White Rabbits ◽  
Scanning Electron

Tracy and Doremus have demonstrated chemical bonding between bone and hydroxylapatite with transmission electron microscopy. Now researchers ponder how to improve upon this bond in turn improving the life expectancy and biocompatibility of implantable orthopedic devices.This report focuses on a study of the- chemical influences on the interfacial integrity and strength. Pure hydroxylapatite (HAP), magnesium doped HAP, strontium doped HAP, bioglass and medical grade titanium cylinders were implanted into the tibial cortices of New Zealand white rabbits. After 12 weeks, the implants were retrieved for a scanning electron microscopy study coupled with energy dispersive spectroscopy.Following sacrifice and careful retrieval, the samples were dehydrated through a graduated series starting with 50% ethanol and continuing through 60, 70, 80, 90, 95, and 100% ethanol over a period of two days. The samples were embedded in LR White. Again a graduated series was used with solutions of 50, 75 and 100% LR White diluted in ethanol.

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