scholarly journals Combining Ultrafast Calorimetry and Electron Microscopy: Reversible Phase Transformations in SeTeAs Alloys

2018 ◽  
Vol 18 (6) ◽  
pp. 3668-3673 ◽  
Author(s):  
Paul A. Vermeulen ◽  
Joost Calon ◽  
Gert H. ten Brink ◽  
Bart J. Kooi
Keyword(s):  
Electron Microscopy ◽  
Phase Transformations ◽  
Reversible Phase

A Transmission Electron Microscopical Investigation of Phase Transformations in TiNi

1980 ◽  
Vol 38 ◽  
pp. 340-341
Author(s):  
P. Moine ◽  
G. M. Michal ◽  
R. Sinclair
Keyword(s):  
Electron Microscopy ◽  
Phase Transformations ◽  
Applied Stress ◽  
Structural Changes ◽  
Microscopical Investigation ◽  
Temperature Range ◽  
Transmission Electron ◽  
Electron Microscopical ◽  
Diffraction Effects ◽  
Microscopy Images

Premartensitic effects in near equiatomic TiNi have been pointed out by several authors(1-5). These include anomalous contrast in electron microscopy images (mottling, striations, etc. ),diffraction effects(diffuse streaks, extra reflections, etc.), a resistivity peak above Ms (temperature at which a perceptible amount of martensite is formed without applied stress). However the structural changes occuring in this temperature range are not well understood. The purpose of this study is to clarify these phenomena.

scholarly journals Reversible Phase Transformations during In-Situ Heating of Uncapped Ge2Sb2Te5 Films

2021 ◽  
Vol 27 (S1) ◽  
pp. 2412-2414
Author(s):  
Chanchal Ghosh ◽  
Manish Singh ◽  
Paul Kotula ◽  
Helena Silva ◽  
C. Barry Carter
Keyword(s):  
Phase Transformations ◽  
In Situ Heating ◽  
Reversible Phase

Interfacial precipitation in titania-doped diphasic mullite gels

1998 ◽  
Vol 13 (4) ◽  
pp. 974-978 ◽  
Author(s):  
Seong-Hyeon Hong ◽  
Naesung Lee ◽  
Altaf H. Carim ◽  
Gary L. Messing
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Phase Transformations ◽  
Orientation Relationship ◽  
Sol Gel ◽  
Sintered Body ◽  
Transmission Electron

Interfacial precipitation in sol-gel derived, titania-doped diphasic mullite gels was investigated using conventional and high resolution transmission electron microscopy. Rutile, anatase, and brookite precipitated on the interface between {110} planes of mullite and glass pockets in the sintered body. The formation of brookite may be attributable to the Si- and Al-rich environment during precipitation. Each polymorph of titania has a unique morphology and orientation relationship with mullite. Brookite exhibits a truncated pill box shape, and anatase displays a vermicular morphology. Quenching experiments suggest that the precipitates grow and undergo phase transformations during cooling.

Phase transformations as studied by electron microscopy

1987 ◽  
Vol 23 (3-4) ◽  
pp. 371-382 ◽  
Author(s):  
J. Van Landuyt ◽  
G. Van Tendeloo ◽  
S. Amelinckx
Keyword(s):  
Electron Microscopy ◽  
Phase Transformations

Intercalationskomplexe von Eisen(ni)oxidchlorid FeOCl mit Alkanolen / Intercalation Complexes of Iron(III) Oxide Chloride FeOCl with Alkanols

1980 ◽  
Vol 35 (2) ◽  
pp. 157-163 ◽  
Author(s):  
Armin Weiss ◽  
Jin Ho Choy
Keyword(s):  
Phase Transformations ◽  
Major Part ◽  
Host Lattice ◽  
Replacement Reaction ◽  
Trans Conformation ◽  
Open Procedure ◽  
Intercalation Complexes ◽  
Interlayer Region ◽  
Reversible Phase ◽  
Long Chain

n-Alkanol intercalation complexes of iron(III) oxide chloride FeOCl · a n-CxHx+1OH (x = 1-18) are obtained from the amine intercalates by replacement reaction or by a "propping-open" procedure. The alkanol content is slightly variable with a = 0.54 in the alkanol richest phases and 0.46 after heating to 110 °C. In the alkanol richest phases the long chain alkanol molecules (x ≤ 12) form bilayers in the interlayer region of the FeOCl with the major part of each chain in all trans conformation and perpendicular to the layers of the host lattice. The complexes undergo a series of reversible phase transformations on heating. The arrangement of short chain alkanols (x ≤ 6) is less regular. At higher temperatures ( > 130 °C) condensation to FeO(OR)nCl1-n is observed. The alkoxylated derivatives are also capable of forming intercalation complexes.

Sign in / Sign up

Export Citation Format

Share Document