scholarly journals Effect of surface modification on the stability of oxide scales formed on TiAl intermetallic alloys at high temperature

2016 ◽  
Vol 2 ◽  
pp. 2291-2298 ◽  
Author(s):  
D. Pilone ◽  
A. Brotzu ◽  
F. Felli
Keyword(s):  
Surface Modification ◽  
High Temperature ◽  
Intermetallic Alloys ◽  
Oxide Scales ◽  
The Stability ◽  
Effect Of Surface

EFFECT OF SURFACE MODIFICATION ON THE PROPERTIES OF YAG–ZrB2 CERAMICS

2009 ◽  
Vol 16 (02) ◽  
pp. 281-286
Author(s):  
JIE-GUANG SONG ◽  
SHI-BIN LI ◽  
YIN-YAN JU ◽  
DA-MING DU ◽  
YU-WEI WANG ◽  
...  
Keyword(s):  
Surface Modification ◽  
High Temperature ◽  
Oxidation Resistance ◽  
Raw Materials ◽  
Phase Content ◽  
High Melting ◽  
Oxidation Layer ◽  
Ultra High Temperature Ceramics ◽  
Melting Temperatures ◽  
Effect Of Surface

ZrB 2 belongs to a class of ceramics defined ultra-high-temperature ceramics with extremely high melting temperatures; however, ZrB 2 ceramics is easily oxidized. To make ZrB 2 ceramics possess the better oxidation resistance in the air at high temperature, in this paper, the effect of surface modification on the properties of YAG– ZrB 2 ceramics were investigated. Fracture toughness of sintered ceramics with coated raw materials is higher than that of sintered ceramics with mixed raw materials under the same phase and phase content conditions. Oxidation layer thickness of sintered ceramics with coated raw materials is thinner than that of sintered ceramics with mixed raw materials. The results indicate that the sintered coated structure ceramics with coated raw materials help to increase the mechanical property and oxidation resistance of YAG– ZrB 2 ceramics.

Effect of Improved ThO2 Particle Dispersion in Nickel on High-Temperature Strength

1970 ◽  
Vol 28 ◽  
pp. 444-445
Author(s):  
E. R. Kimmel ◽  
H. L. Anthony ◽  
W. Scheithauer
Keyword(s):  
High Temperature ◽  
Metal Matrix ◽  
Oxide Particle ◽  
Oxide Phase ◽  
Dislocation Motion ◽  
Particle Dispersion ◽  
High Temperature Strength ◽  
Strengthening Effect ◽  
Oxide Particles ◽  
The Stability

The strengthening effect at high temperature produced by a dispersed oxide phase in a metal matrix is seemingly dependent on at least two major contributors: oxide particle size and spatial distribution, and stability of the worked microstructure. These two are strongly interrelated. The stability of the microstructure is produced by polygonization of the worked structure forming low angle cell boundaries which become anchored by the dispersed oxide particles. The effect of the particles on strength is therefore twofold, in that they stabilize the worked microstructure and also hinder dislocation motion during loading.

Effect of surface modification of WO3nanostructures on the performance for p-Si/n-WO3structure diodes

2021 ◽  
pp. 108695
Author(s):  
B. Gowtham ◽  
V. Ponnuswamy ◽  
J. Chandrasekaran ◽  
V. Balasubramani ◽  
R. Suresh ◽  
...  
Keyword(s):  
Surface Modification ◽  
Effect Of Surface
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