Growth kinetics of intermetallic alloy phase at the interfaces of a Ni/Al multilayer using polarized neutron and x-ray reflectometry

2010 ◽  
Vol 81 (23) ◽  
Author(s):  
Surendra Singh ◽  
Saibal Basu ◽  
M. Gupta ◽  
C. F. Majkrzak ◽  
P. A. Kienzle
Keyword(s):  
Growth Kinetics ◽  
Intermetallic Alloy ◽  
X Ray ◽  
Polarized Neutron ◽  
Kinetics Of

GROWTH OF OXIDE LAYER ON GERMANIUM (011) SUBSTRATE UNDER DRY AND WET ATMOSPHERES

1999 ◽  
Vol 06 (06) ◽  
pp. 1053-1060 ◽  
Author(s):  
N. TABET ◽  
J. AL-SADAH ◽  
M. SALIM
Keyword(s):  
Simple Model ◽  
Oxide Film ◽  
Growth Kinetics ◽  
Photoelectron Spectroscopy ◽  
Early Stage ◽  
X Ray ◽  
Apparent Thickness ◽  
Different Temperatures ◽  
Kinetics Of

X-ray Photoelectron Spectroscopy (XPS) has been used to investigate the oxidation of (011) Ge substrates. The sample surfaces were CP4-etched, then annealed in situ, at different temperatures, for various durations. Dry and wet atmospheres were used. The oxidation rate during the early stage was increased by the presence of moisture in the atmosphere. A simple model was used to define and determine an apparent thickness of the oxide film from XPS measurements. The time dependence of the apparent thickness is consistent with a partial coverage of the surface by oxide islands. The growth kinetics of the oxide islands obeys a nearly cubic law.

Grain-Growth Kinetics of Nanocrystalline Iron Studied In Situ by Synchrotron Real-Time X-ray Diffraction

2000 ◽  
Vol 104 (11) ◽  
pp. 2467-2476 ◽  
Author(s):  
H. Natter ◽  
M. Schmelzer ◽  
M.-S Löffler ◽  
C. E. Krill ◽  
A. Fitch ◽  
...  
Keyword(s):  
Real Time ◽  
Grain Growth ◽  
Growth Kinetics ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nanocrystalline Iron ◽  
Grain Growth Kinetics ◽  
Kinetics Of

scholarly journals Growth Kinetics of the Selected Intermetallic Phases in Ni/Al/Ni System with Various Nickel Substrate Microstructure

Nanomaterials ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 134 ◽  
Author(s):  
Izabella Kwiecien ◽  
Piotr Bobrowski ◽  
Anna Wierzbicka-Miernik ◽  
Lidia Litynska-Dobrzynska ◽  
Joanna Wojewoda-Budka
Keyword(s):  
Electron Microscopy ◽  
Growth Kinetics ◽  
Intermetallic Phases ◽  
Nickel Aluminum ◽  
Nickel Substrate ◽  
Electron Backscattered Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Nickel Substrates ◽  
Kinetics Of

Reactivity in nickel–aluminum system was examined for two variants of nickel substrates in terms of the size and shape of Ni grains. The microstructure transformation aroused due to the annealing at 720 °C for different annealing times (0.25 to 72 h) was consequently followed. The sequence of formation of the particular intermetallic phases was given. The interconnection zones were examined by means of scanning electron microscopy supported with energy dispersive X-ray spectroscopy and electron backscattered diffraction techniques as well as by the transmission electron microscopy. The growth kinetics data for AlNi, AlNiNi-rich and AlNi3 phases for both variants of substrates was given, indicating the differences obtained in previous works on this subject.

X-ray photoelectron spectroscopy study of the growth kinetics of biomimetically grown hydroxyapatite thin-film coatings

2010 ◽  
Vol 256 (23) ◽  
pp. 7178-7185 ◽  
Author(s):  
K. McLeod ◽  
S. Kumar ◽  
N.K. Dutta ◽  
R.St.C. Smart ◽  
N.H. Voelcker ◽  
...  
Keyword(s):  
Thin Film ◽  
Growth Kinetics ◽  
Photoelectron Spectroscopy ◽  
Spectroscopy Study ◽  
X Ray ◽  
Film Coatings ◽  
Thin Film Coatings ◽  
Kinetics Of

scholarly journals X-ray-reflectivity study of the growth kinetics of vapor-deposited silver films

1994 ◽  
Vol 49 (7) ◽  
pp. 4902-4907 ◽  
Author(s):  
C. Thompson ◽  
G. Palasantzas ◽  
Y. P. Feng ◽  
S. K. Sinha ◽  
J. Krim
Keyword(s):  
Growth Kinetics ◽  
Silver Films ◽  
X Ray ◽  
Kinetics Of

scholarly journals Effect of the Noble Metals Addition on the Oxidation Behavior of Ni3Al

2018 ◽  
Vol 2018 ◽  
pp. 1-19 ◽  
Author(s):  
J. J. Ramos-Hernandez ◽  
J. Porcayo-Calderon ◽  
J. G. Gonzalez-Rodriguez ◽  
Jan Mayén ◽  
G. Lara-Rodriguez ◽  
...  
Keyword(s):  
Noble Metals ◽  
Oxidation Behavior ◽  
Surface Composition ◽  
Xrd Analysis ◽  
Intermetallic Alloy ◽  
Oxide Growth ◽  
X Ray ◽  
Crystallographic Planes ◽  
Kinetics Of ◽  
Duplex Oxide

This paper discusses the effect of the addition of noble metals on the microstructure, mechanism, and oxidation kinetics of the Ni3Al intermetallic alloy. Ni3Al was doped with 1% (atomic percent) of Au, Ag, Pd, and Pt. Oxidation behavior of the alloys was evaluated at 900, 1000, and 1100°C in O2 for 24 hours. XRD analysis showed that the addition of noble metals favored the oxide growth on preferential crystallographic planes. In addition, the preferential substitution of the noble metals in the Ni3Al structure modifies the surface composition by increasing the Al/Ni ratio. It was observed that most of the alloys showed a subparabolic behavior, and only the intermetallic base and the alloy doped with Ag show a parabolic behavior at 900°C. The developed oxides were analyzed both superficially and in cross section by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDXA). It was evident that only the intermetallic base showed the formation of a duplex oxide scale (Al2O3/NiO). The alloys doped with noble metals showed the oxide growth practically of pure Al2O3. This was due to a decrease in the diffusion of the Ni cations because of the presence of the noble metals in the crystalline structure.

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