Water-Vapor Corrosion of Beryllia

2009 ◽  
pp. 146-146-8
Author(s):  
CC Browne
Keyword(s):  
Water Vapor ◽  
Water Vapor Corrosion

Water vapor corrosion of mullite containing small amount of sodium

2005 ◽  
Vol 31 (1) ◽  
pp. 177-180 ◽  
Author(s):  
Shunkichi Ueno ◽  
D. Doni Jayaseelan ◽  
Naoki Kondo ◽  
Tatsuki Ohji ◽  
Shuzo Kanzaki
Keyword(s):  
Water Vapor ◽  
Water Vapor Corrosion

Internal Friction Behavior of SiC Ceramics Subjected to Water Vapor Corrosion

2014 ◽  
pp. 311-316
Author(s):  
Zhiliang Hong ◽  
Laifei Cheng ◽  
Chunnian Zhao ◽  
Xiufeng Han ◽  
Litong Zhang ◽  
...  
Keyword(s):  
Water Vapor ◽  
Internal Friction ◽  
Friction Behavior ◽  
Sic Ceramics ◽  
Water Vapor Corrosion

ChemInform Abstract: WATER VAPOR CORROSION OF LAMELLAR, SUPERPLASTIC AND CAST DENDRITIC ZN-21AL ALLOY

1984 ◽  
Vol 15 (30) ◽  
Author(s):  
G. TORRES-VILLASENOR ◽  
A. UGALDE ◽  
L. HERNANDEZ ◽  
I. L. SINGER
Keyword(s):  
Water Vapor ◽  
Water Vapor Corrosion

High Temperature Hydro Corrosion Resistance of Silica Based Oxide Ceramics

2003 ◽  
Author(s):  
Shunkichi Ueno ◽  
Naoki Kondo ◽  
D. Doni Jayaseelan ◽  
Tatsuki Ohji ◽  
Shuzo Kanzaki
Keyword(s):  
Phase Transition ◽  
Corrosion Resistance ◽  
Surface Layer ◽  
Water Vapor ◽  
High Temperature ◽  
Corrosion Test ◽  
Oxide Ceramics ◽  
Rich Phase ◽  
Water Vapor Corrosion ◽  
Phase Phase

Water vapor corrosion behavior of Ln2Si2O7 (Ln = Nd, Er, Lu), mullite, CaYb4Si3O13 and Al2O3 were investigated at 1500°C. In Ln2Si2O7 phases, Ln = Nd and Er samples were completely dissolved in water vapor environment. CaYb4Si3O13 phase underwent decomposition during the corrosion test. Lu2Si2O7 and mullite showed excellent water vapor corrosion protection. In the case of mullite, Al2O3 rich phase was formed on the surface and the corrosion progression was successfully protected. In the case of Lu2Si2O7 phase, phase transition occurred and the grain boundaries of surface layer were slightly corroded by the corrosion test.

Water vapor corrosion behavior of lutetium silicates at high temperature

2006 ◽  
Vol 32 (4) ◽  
pp. 451-455 ◽  
Author(s):  
Shunkichi Ueno ◽  
D. Doni Jayaseelan ◽  
Tatsuki Ohji
Keyword(s):  
Water Vapor ◽  
High Temperature ◽  
Corrosion Behavior ◽  
Water Vapor Corrosion

2730 Water Vapor Corrosion of Melt Growth Composites under Ultra-High Temperature and High Pressure Enviornments

2006 ◽  
Vol 2006.1 (0) ◽  
pp. 189-190
Author(s):  
Ryuji SIRAKAWA ◽  
Yoshihisa HARADA ◽  
Takayuki SUZUKI ◽  
Kazumi HIRANO ◽  
Tokuo TERAMOTO
Keyword(s):  
High Pressure ◽  
Water Vapor ◽  
High Temperature ◽  
Melt Growth ◽  
Water Vapor Corrosion ◽  
Ultra High Temperature

scholarly journals Water Vapor Corrosion Behavior of Yb2SiO5 Environmental Barrier Coatings Prepared by Plasma Spray-Physical Vapor Deposition

Coatings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 392 ◽  
Author(s):  
Chao Wang ◽  
Min Liu ◽  
Junli Feng ◽  
Xiaofeng Zhang ◽  
Chunming Deng ◽  
...  
Keyword(s):  
Water Vapor ◽  
Porous Structure ◽  
Plasma Spray ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Ceramic Matrix Composite ◽  
Environmental Barrier Coatings ◽  
Environmental Barrier ◽  
Barrier Coating ◽  
Water Vapor Corrosion

Tri-layer Si/mullite/Yb2SiO5 environmental barrier coating (EBC) was prepared on the SiCf/SiC ceramic matrix composite (CMC) by plasma spray-physical vapor deposition (PS-PVD). The EBC samples were carried out with water vapor corrosion at 1300 °C for 200 h. After steam corrosion, Yb2SiO5 layer forms a gradient porous structure. This is mainly due to the inclusion of SiO2-rich layer which is precipitated from the gasification inside the coating and existing a small amount of Yb2O3 separately. During the corrosion process, water vapor infiltrates into the coating and reacts with the SiO2 and Yb2O3 to generate volatile substances. This forms a porous structure to make the coating brittle, resulting in mud cracks finally. In addition, the results show that the Yb2SiO5 can react with the water vapor at the coating surface, forming an Yb2Si2O7 top layer.

Water vapor corrosion behavior and failure mechanism of plasma sprayed mullite/Lu2Si2O7-Lu2SiO5 coatings

2018 ◽  
Vol 44 (12) ◽  
pp. 14177-14185 ◽  
Author(s):  
Xunxun Hu ◽  
Fangfang Xu ◽  
Kunwei Li ◽  
Gen Jin ◽  
Yue Xu ◽  
...  
Keyword(s):  
Water Vapor ◽  
Failure Mechanism ◽  
Corrosion Behavior ◽  
Plasma Sprayed ◽  
Water Vapor Corrosion
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