The Industrial Processing of High-Temperature Ceramic Coatings

2009 ◽  
pp. 51-51-10
Author(s):  
J. H. Terry
Keyword(s):  
High Temperature ◽  
Ceramic Coatings ◽  
Industrial Processing

Influences of Calcination Ambiences on Phase Composition and High Temperature Oxidation Resistance Property of Ceramic Coatings on Ti–6Al–4V Alloy by Micro-Plasma Oxidation

2007 ◽  
Vol 336-338 ◽  
pp. 2481-2483 ◽  
Author(s):  
Guo Dong Hao ◽  
Zhao Hua Jiang ◽  
Zhong Ping Yao ◽  
Heng Ze Xian ◽  
Yan Li Jiang
Keyword(s):  
Phase Composition ◽  
High Temperature ◽  
Oxidation Resistance ◽  
High Temperature Oxidation ◽  
Ceramic Coatings ◽  
Plasma Oxidation ◽  
Temperature Oxidation ◽  
Complete Decomposition ◽  
Weight Gains ◽  
High Temperature Calcination

Compound ceramic coatings with the main crystalline of Al2TiO5 (as-coated samples) were prepared on Ti-6Al-4V alloy by pulsed bi-polar micro-plasma oxidation (MPO) in NaAlO2 solution. The coated samples were calcined in Ar and air at 1000oC, respectively. The phase composition, morphology and element content of the coatings were investigated by XRD, SEM and XRF. The samples treated in Ar and the as-coated ones were calcined in air at 1000oC to study the oxidation resistance of the samples. The results showed that Al2TiO5 decomposed and transformed into corundum and rutile TiO2 during the high temperature calcination. Al2TiO5 decomposed very quickly in air and the proportion of Al2O3 to TiO2 was 44:55 after a complete decomposition. On the contrary, Al2TiO5 decomposed very slowly in argon with the final proportion of Al2O3 to TiO2 of 81:18 on the coating surface. The morphology of the ceramic coatings after the calcination was also different. The coatings calcined in argon were fined: the grains and pores were smaller than those of the coatings calcined in air. The weight gains of both coatings changed in the form of parabola law, and the weight gains of the coated samples treated in argon were comparatively lower than that of the as-coated samples. During the high temperature calcination, the samples treated in argon cannot distort easily, compared with the as-coated ones.

scholarly journals Corrosion Behavior and Surface Treatment of Cladding Materials Used in High-Temperature Lead-Bismuth Eutectic Alloy: A Review

Coatings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 364
Author(s):  
Hao Wang ◽  
Jun Xiao ◽  
Hui Wang ◽  
Yong Chen ◽  
Xing Yin ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Liquid Metal ◽  
Energy Demand ◽  
Ceramic Coatings ◽  
High Entropy Alloy ◽  
Pressurized Water ◽  
Corrosion Morphology ◽  
High Entropy ◽  
Lead Bismuth Eutectic

Liquid metal fast reactors were considered to be the most promising solution to meet the enormous energy demand in the future. However, corrosion phenomenon caused by the liquid metal, especially in high-temperature lead-bismuth coolant, has greatly hindered the commercialization of the advanced Generation-IV nuclear system. This review discussed current research on the corrosion resistance of structural materials (such as EP823, T91, ODS, and authentic steels) in high-temperature liquid metal served as reactor coolants. The current corrosion resistance evaluation has proved that even for the excellent performance of EP823, the structural material selected in pressurized water reactor is not the ideal material for operation in the high-temperature lead-bismuth eutectic (LBE). Furthermore, the latest coating technologies that are expected to be applied to cladding materials for coolant system were extensively discussed, including Al-containing coatings, ceramic coatings, oxide coatings, amorphous coatings and high-entropy alloy coatings. The detailed comparison summarized the corrosion morphology and corrosion products of various coatings in LBE. This review not only provided a systematic understanding of the corrosion phenomena, but also demonstrated that coating technology is an effective method to solve the corrosion issues of the advanced next-generation reactors.

Effects of heat treatments on oxidation resistance and mechanical properties of ultra high temperature ceramic coatings

2008 ◽  
Vol 202 (18) ◽  
pp. 4394-4398 ◽  
Author(s):  
Mario Tului ◽  
Stefano Lionetti ◽  
Giovanni Pulci ◽  
Elviro Rocca ◽  
Teodoro Valente ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Oxidation Resistance ◽  
Ceramic Coatings ◽  
Heat Treatments ◽  
Ultra High Temperature

The friction and wear performance of plasma-sprayed ceramic coatings at high temperature

Wear ◽  
1989 ◽  
Vol 129 (2) ◽  
pp. 223-234 ◽  
Author(s):  
Yinglong Wang ◽  
Yuansheng Jin ◽  
Shizhu Wen
Keyword(s):  
High Temperature ◽  
Friction And Wear ◽  
Ceramic Coatings ◽  
Wear Performance ◽  
Plasma Sprayed

Reactive Plasma Spray

2018 ◽  
pp. 299-332
Author(s):  
Mohammed Shahien
Keyword(s):  
High Temperature ◽  
Thermal Spraying ◽  
Ceramic Coatings ◽  
Reactive Plasma Spray ◽  
In Situ Fabrication ◽  
Reactive Plasma Spraying ◽  
Reactive Plasma ◽  
Nitride Coatings ◽  
Promising Solution

Thermal spraying is a well-known coating technology with many variations in spraying techniques, feedstock materials and substrate materials. These unique variations increased its industrial applicability in different fields, including aerospace, automotive, chemical process, corrosion protection, and medical applications. However, one of the main limitations of thermal spray is the difficulty of depositing several nitride ceramics directly using conventional techniques. This is due to the decomposition of nitride particles under high temperature without a stable melting phase. This chapter presents reactive plasma spraying (RPS) technology as a promising solution for the in situ fabrication of several nitride ceramic coatings. The main attractive prospects of RPS for fabricating nitride coatings are specifically highlighted. Successful development of various high-temperature nitride coatings, such as AlN, Fe4N and Si3N4, are presented. Process optimization, the relationship between reaction and process parameters and the influence on coatings formation are comprehensively discussed.

A review of ceramic coatings for high temperature uranium melting applications

2020 ◽  
Vol 540 ◽  
pp. 152354
Author(s):  
Jagadeeswara Rao Ch ◽  
E. Vetrivendan ◽  
B. Madhura ◽  
S. Ningshen
Keyword(s):  
High Temperature ◽  
Ceramic Coatings

Ceramic Coatings for Functionally Graded High-Temperature Heat-Shielding Materials

2013 ◽  
Vol 70 (1-2) ◽  
pp. 26-28 ◽  
Author(s):  
V. A. Rozenenkova ◽  
N. A. Mironova ◽  
S. S. Solntsev ◽  
S. V. Gavrilov
Keyword(s):  
High Temperature ◽  
Ceramic Coatings ◽  
Functionally Graded ◽  
Temperature Heat ◽  
Heat Shielding

Synthesis and high-temperature evolution of polysilylcarbodiimide-derived SiCN ceramic coatings

2015 ◽  
Vol 35 (14) ◽  
pp. 3771-3780 ◽  
Author(s):  
Amon Klausmann ◽  
Koji Morita ◽  
Kurt E. Johanns ◽  
Claudia Fasel ◽  
Karsten Durst ◽  
...  
Keyword(s):  
High Temperature ◽  
Ceramic Coatings ◽  
Temperature Evolution
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