Direct observation of valence transition inCeNi1−xCoxSnalloys by x-ray and photoelectron spectroscopies

2007 ◽  
Vol 76 (7) ◽  
Author(s):  
H. Yamaoka ◽  
N. Tsujii ◽  
K. Yamamoto ◽  
H. Oohashi ◽  
A. M. Vlaicu ◽  
...  
Keyword(s):  
Direct Observation ◽  
Valence Transition ◽  
X Ray

Direct Observation of Monolayer Zones in Al-wt 4% Cu

1990 ◽  
Vol 48 (1) ◽  
pp. 14-15
Author(s):  
B. Jouffrey ◽  
D. Dorignac ◽  
A. Bourret
Keyword(s):  
Solid Solution ◽  
Synchrotron Radiation ◽  
Direct Observation ◽  
Supersaturated Solid Solution ◽  
Original Model ◽  
X Ray ◽  
Image Position

Since the early works on GP zones and the model independently proposed by Preston and Guinier on the first steps of precipitation in supersaturated solid solution of aluminium containing a few percent of copper, many works have been performed to understand the structure of different stages in the sequence of precipitation.The scheme which is generally admitted can be drawn from a work by Phillips.In their original model Guinier and Preston analysed a GP zone as composed of a single (100) copperrich plane surrounded by aluminum atomic planes with a slightly shorter distance from the original plane than in the solid solution.From X-ray measurements it has also been shown that GP1 zones were not only copper monolayer zones. They could be up to a few atomic planes thick. Different models were proposed by Guinier, Gerold, Toman. Using synchrotron radiation, proposals have been recently made.

scholarly journals Direct observation of the displacement field and microcracking in a glass by means of X-ray tomography during in situ Vickers indentation experiment

2019 ◽  
Vol 179 ◽  
pp. 424-433 ◽  
Author(s):  
Tanguy Lacondemine ◽  
Julien Réthoré ◽  
Éric Maire ◽  
Fabrice Célarié ◽  
Patrick Houizot ◽  
...  
Keyword(s):  
Direct Observation ◽  
Displacement Field ◽  
Vickers Indentation ◽  
X Ray ◽  
Indentation Experiment

Valence transition in polycrystalline Eu(Rh 1–x Co x ) 2 Si 2 studied by hard x-ray photoemission spectroscopy

2017 ◽  
Vol 220 ◽  
pp. 28-32 ◽  
Author(s):  
Katsuya Ichiki ◽  
Takayuki Matsumoto ◽  
Hiroaki Anzai ◽  
Ryohei Takeshita ◽  
Kodai Abe ◽  
...  
Keyword(s):  
Photoemission Spectroscopy ◽  
Valence Transition ◽  
X Ray

Direct observation of tetravalent cerium in ferromanganese nodules and crusts by X-ray-absorption near-edge structure (XANES)

2000 ◽  
Vol 64 (17) ◽  
pp. 2929-2935 ◽  
Author(s):  
Yoshio Takahashi ◽  
Hiroshi Shimizu ◽  
Akira Usui ◽  
Hiroyuki Kagi ◽  
Masaharu Nomura
Keyword(s):  
Direct Observation ◽  
Edge Structure ◽  
Ferromanganese Nodules ◽  
X Ray ◽  
Tetravalent Cerium ◽  
X Ray Absorption
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