Kinetic Study of the Competitive Growth Between θ-Al2O3 and α-Al2O3 During the Early Stages of Oxidation of β-(Ni,Pt)Al Bond Coat Systems: Effects of Low Oxygen Partial Pressure and Temperature

2014 ◽  
Vol 46 (2) ◽  
pp. 726-738 ◽  
Author(s):  
J. M. Alvarado-Orozco ◽  
R. Morales-Estrella ◽  
M. S. Boldrick ◽  
G. Trapaga-Martinez ◽  
B. Gleeson ◽  
...  
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Kinetic Study ◽  
Bond Coat ◽  
Competitive Growth ◽  
Low Oxygen ◽  
Early Stages ◽  
Α Al2o3

First Stages of Oxidation of Pt-Modified Nickel Aluminide Bond Coat Systems at Low Oxygen Partial Pressure

2012 ◽  
Vol 78 (5-6) ◽  
pp. 269-284 ◽  
Author(s):  
J. M. Alvarado-Orozco ◽  
R. Morales-Estrella ◽  
M. S. Boldrick ◽  
J. L. Ortiz-Merino ◽  
D. G. Konitzer ◽  
...  
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Bond Coat ◽  
Nickel Aluminide ◽  
Low Oxygen

Quantitative evaluation of the oxidation behavior of ZrB2-15 vol.%SiC at a low oxygen partial pressure

Vacuum ◽  
2013 ◽  
Vol 88 ◽  
pp. 98-102 ◽  
Author(s):  
Ai Momozawa ◽  
Rong Tu ◽  
Takashi Goto ◽  
Yuuki Kubota ◽  
Hiroshi Hatta ◽  
...  
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Quantitative Evaluation ◽  
Oxidation Behavior ◽  
Low Oxygen

Enhanced superconductivity in Nd1+xBa2-xCu3O7+δby low oxygen partial pressure annealing

1994 ◽  
Vol 23 (11) ◽  
pp. 1117-1120 ◽  
Author(s):  
M. J. Kramer ◽  
A. Karion ◽  
K. W. Dennis ◽  
M. Park ◽  
R. W. McCallum
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Low Oxygen ◽  
Enhanced Superconductivity

Tensile Properties and Creep Behavior of SiC-Based Fibers under Various Oxygen Partial Pressures

2005 ◽  
Vol 475-479 ◽  
pp. 1333-1336 ◽  
Author(s):  
Jan Ji Sha ◽  
J.S. Park ◽  
Tatsuya Hinoki ◽  
Akira Kohyama ◽  
J. Yu
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Tensile Properties ◽  
Creep Behavior ◽  
Elevated Temperatures ◽  
Low Oxygen ◽  
X Ray Diffraction ◽  
Sic Fibers ◽  
Partial Pressures ◽  
Ar Gas

Three kinds of atmospheres (air, highly-pure Ar and ultra highly-pure Ar gas) with different oxygen partial pressures were applied to investigate the tensile properties and creep behavior of SiC fibers such as Hi-NicalonTM and TyrannoTM-SA. These fibers were annealed and crept at elevated temperatures ranging from1273-1773 K in such environments. After annealing at 1773 K, the room temperature tensile strengths of SiC-based fibers decreased with decreasing the oxygen partial pressure and the near stoichiometric fiber TyrannoTM-SA shows excellent strength retention. At temperatures above the 1573 K, the creep resistance of SiC fibers evaluated by bending stress relaxation (BSR) method under high oxygen partial pressure was lower than that of in low oxygen partial pressure. The microstructural features on these fibers were examined by scanning electron microscopy (SEM) and X-ray diffraction (XRD).

Preparation of NdBaCuO superconductor by zone-melting under low oxygen partial pressure

2003 ◽  
Vol 386 ◽  
pp. 241-244 ◽  
Author(s):  
Zhanguo Fan ◽  
Weiying Gao ◽  
Fenghua Li ◽  
Jue Wang ◽  
Deahua Soh
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Zone Melting ◽  
Low Oxygen
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