Microstructure, phase transition, and interfacial chemistry of Gd2O3/Si(111) grown by electron-beam physical vapor deposition

2012 ◽  
Vol 30 (4) ◽  
pp. 041512 ◽  
Author(s):  
Xiaojun Weng ◽  
Daniel A. Grave ◽  
Zachary R. Hughes ◽  
Douglas E. Wolfe ◽  
Joshua A. Robinson
Keyword(s):  
Phase Transition ◽  
Electron Beam ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Interfacial Chemistry

Strain Tolerance and Microstructure of Thermal Barrier Coatings Produced by Electron Beam Physical Vapor Deposition Process

2006 ◽  
Vol 522-523 ◽  
pp. 267-276 ◽  
Author(s):  
Kunihiko Wada ◽  
Yutaka Ishiwata ◽  
Norio Yamaguchi ◽  
Hideaki Matsubara
Keyword(s):  
Electron Beam ◽  
High Temperature ◽  
Thermal Barrier Coatings ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Aging Treatment ◽  
Nanoindentation Test ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Strain Tolerance

Several kinds of thermal barrier coatings (TBCs) deposited by electron beam physical vapor deposition (EB-PVD) were produced as a function of electron beam power in order to evaluate their strain tolerance. The deposition temperatures were changed from 1210 K to 1303 K depending on EB power. In order to evaluate strain tolerances of the EB-PVD/TBCs, a uniaxial compressive spallation test was newly proposed in this study. In addition, the microstructures of the layers were observed with SEM and Young’s moduli were measured by a nanoindentation test. The strain tolerance in as-deposited samples decreased with an increase in deposition temperature. In the sample deposited at 1210 and 1268 K, high-temperature aging treatment at 1273 K for 10 h remarkably promoted the reduction of the strain tolerance. The growth of thermally grown oxide (TGO) layer generated at the interface between topcoat and bondcoat layers was the principal reason for this strain tolerance reduction. We observed TGO-layer growth even in the as-deposited sample. Although the thickness of the initial TGO layer in the sample deposited at high temperature was thicker, the growth rate during aging treatment was smaller than those of the other specimens. This result suggests that we can improve the oxidation resistance of TBC systems by controlling the processing parameters in the EB-PVD process.

Electron Beam Physical Vapor Deposition (EBPVD)

2012 ◽  
pp. 741-741
Author(s):  
Mélanie Auffan ◽  
Catherine Santaella ◽  
Alain Thiéry ◽  
Christine Paillès ◽  
Jérôme Rose ◽  
...  
Keyword(s):  
Electron Beam ◽  
Vapor Deposition ◽  
Physical Vapor Deposition

Fatigue strength of an (α + β)-type titanium alloy Ti-6Al-4V produced by the electron-beam physical vapor deposition method

2006 ◽  
Vol 38 (6) ◽  
pp. 651-658 ◽  
Author(s):  
O. N. Gerasimchuk ◽  
G. A. Sergienko ◽  
V. I. Bondarchuk ◽  
A. V. Terukov ◽  
Yu. S. Nalimov ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Electron Beam ◽  
Fatigue Strength ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Deposition Method ◽  
Physical Vapor Deposition Method
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