Refractory oxides for high-temperature coal-fired MHD air heaters

1981 ◽  
Author(s):  
Richard J. Pollina ◽  
Ronald R. Smyth
Keyword(s):  
High Temperature ◽  
Refractory Oxides

High Temperature Coatings for Oxidation and Erosion Protection of Heat-Resistant Carbonaceous Materials in High-Speed Flows

2018 ◽  
Vol 771 ◽  
pp. 103-117 ◽  
Author(s):  
Anna Yurishcheva ◽  
Alexey Astapov ◽  
Ivan Lifanov ◽  
Lev Rabinskiy
Keyword(s):  
High Temperature ◽  
High Speed ◽  
High Efficiency ◽  
Protective Action ◽  
Single Layer ◽  
Heat Resistant ◽  
Refractory Oxides ◽  
Metal Borides ◽  
Main Components ◽  
Erosion Protection

Modern approaches to the creation of single-layer and multi-layer high-temperature coatings for the protection of heat-resistant carbon-containing composite materials from oxidation and erosion in the high-speed fluxes of oxygen-containing gases are analyzed. Particularly have been outlined the heat-resistant coatings, the main components of which are either super refractory transition metal borides (ZrB2, HfB2, TiB2) with the addition of carbides (SiC, ZrC, HfC, TiC, TaC), silicides (MoSi2, TiSi2, ZrSi2, TaSi2, WSi2) and nitrides (HfN, ZrN, TiN), or refractory oxides (HfO2, ZrO2), or more complex synthetic compositions based on oxide ceramics. The results of fire gas-dynamic tests of coatings of perspective compositions are presented. The potential architecture of ultra-high-temperature coatings with high efficiency of protective action is justified.

Arc-Imaging Technique for Measuring High-Temperature Thermal Conductivity and Diffusivity of Refractory Oxides

1975 ◽  
Vol 58 (9-10) ◽  
pp. 368-371 ◽  
Author(s):  
M. FAUCHER ◽  
F. CABANNES ◽  
A. M. ANTHONY ◽  
B. PIRIOU ◽  
J. SIMONATO
Keyword(s):  
Thermal Conductivity ◽  
High Temperature ◽  
Imaging Technique ◽  
Refractory Oxides
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