Structural phase transition in Al-Cu-Mg-Si alloys by transmission electron microscopy study on an Al-4 wt% Cu-1 wt% Mg-Ag alloy reinforced by SiC particles

1999 ◽  
Vol 79 (11) ◽  
pp. 2833-2851 ◽  
Author(s):  
C. Cayron ◽  
L. Sagalowicz ◽  
O. Beffort ◽  
P. A. Buffat
Keyword(s):  
Electron Microscopy ◽  
Phase Transition ◽  
Transmission Electron Microscopy ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Transmission Electron Microscopy Study ◽  
Sic Particles ◽  
Transmission Electron

TEMPERATURE DEPENDENCE OF THE MICROSTRUCTURE IN YBa2Cu3Oy: TRANSMISSION ELECTRON MICROSCOPY STUDY

1990 ◽  
Vol 04 (06) ◽  
pp. 399-407
Author(s):  
J. Q. LI ◽  
Z. X. ZHAO ◽  
F. H. LI ◽  
D. Y. YANG ◽  
G. S. SHI
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Tetragonal Phase ◽  
Structural Phase ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Transmission Electron Microscopy Study ◽  
Domain Structures ◽  
Transmission Electron ◽  
Superconducting Compound

A transmission electron microscopy study has confirmed some new features of thermal variations of the microstructure in the high-T c superconducting compound YBa 2 Cu 3 O y. The changes of domain structures and the nucleation process of the tetragonal phase with the increase of temperature are demonstrated by series of images taken under in-situ heating observations. At temperature near 250°C, two new sets of planar defects have been observed along the directions of a and b-axes, respectively. It has been identified that a continuous structural phase transition, from orthorhombic to tetragonal phase, occurs at about 480 °C. The structural properties of the tetragonal phase have been studied at 700°C.

A transmission electron microscopy study of lattice defects in Mn3O4 hausmannite

1994 ◽  
Vol 70 (5) ◽  
pp. 1077-1094 ◽  
Author(s):  
J. J. Couderc ◽  
S. Fritsch ◽  
M. Brieu ◽  
G. Vanderschaeve ◽  
M. Fagot ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Lattice Defects ◽  
Transmission Electron Microscopy Study ◽  
Transmission Electron
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