Ablation Behavior of Low Pressure Plasma Sprayed TiB2-MoSi2 Composite Coatings

2016 ◽  
Vol 697 ◽  
pp. 685-688
Author(s):  
Li Ping Huang ◽  
Ya Ran Niu ◽  
Hong Li ◽  
Mu Su Ren ◽  
Xue Bin Zheng ◽  
...  
Keyword(s):  
Phase Composition ◽  
Composite Coatings ◽  
Great Influence ◽  
Low Pressure ◽  
Plasma Flame ◽  
Pressure Plasma ◽  
Ablation Resistance ◽  
Low Pressure Plasma Spray ◽  
Low Pressure Plasma ◽  
Plasma Sprayed

In this work, TiB2-MoSi2 composite coatings with various contents of MoSi2 (20 vol. % and 40 vol. %, respectively) were fabricated on SiC coated C/C substrates by low pressure plasma spray (LPPS) technique. The microstructure and phase composition of the coatings were characterized. The ablation behaviors of the composite coatings were evaluated and compared with the pure TiB2 coating using a plasma flame of about 2200°C. The results showed that MoSi2 was uniformly distributed in the TiB2 matrix. All the coatings kept intact after the ablation for 60s - 180s, indicating their excellent ablation resistance. The addition of MoSi2 had great influence on the ablation behavior of the composite coatings. The TiB2 coating gained mass after the ablation. The mass of the TM20 coating increased firstly (60s and 120s) and then decreased at 180 s. Mass loss was observed for the TM40 coating during the whole procedure of ablation test.

Microstructure and Ablation Property of TaC-SiC Composite Coatings

2016 ◽  
Vol 697 ◽  
pp. 535-538 ◽  
Author(s):  
Ya Ran Niu ◽  
Hui Pu ◽  
Li Ping Huang ◽  
Jun Zhao ◽  
Xue Bin Zheng
Keyword(s):  
Phase Composition ◽  
Mass Loss ◽  
Composite Coating ◽  
Plasma Spray ◽  
Composite Coatings ◽  
Plasma Flame ◽  
Ablation Resistance ◽  
Low Pressure Plasma Spray ◽  
Low Pressure Plasma ◽  
Ablation Property

TaC-based composite coatings containing different contents of SiC (5 vol.%, 10 vol.% and 15 vol.%, respectively) were fabricated by low pressure plasma spray (LPPS) technique. The phase composition and microstructure of the coatings were characterized. The ablation property of the TaC-SiC composite coatings was evaluated by a plasma flame over 2000 oC. The results showed that SiC was uniformly distributed in the composite coatings. The addition of SiC was good for the ablation-resistance of the composite coatings. The mass loss of the composite coatings decreased with increasing the amount of SiC. The mass loss of the TaC-15vol.%SiC composite coating was about 0.15 % after ablation for 60 s, which exhibited the best ablation-resistance among the three kinds of coatings. It was thought that the formed Ta2O5-SiO2 mixed layer on the coating surface contributed to the improved ablation resistance.

scholarly journals Fabrication of TiB2 Dispersed Fe-Cr Composite Coatings by Low Pressure Plasma Spray and Evaluation of Its Property

Shinku ◽  
2007 ◽  
Vol 50 (5) ◽  
pp. 394-397
Author(s):  
Masahiro FUKUMOTO ◽  
Takurou HAMADA ◽  
Motohiro YAMADA ◽  
Tosiaki YASUI
Keyword(s):  
Plasma Spray ◽  
Composite Coatings ◽  
Low Pressure ◽  
Pressure Plasma ◽  
Low Pressure Plasma Spray ◽  
Low Pressure Plasma

Oxidation and Ablation Resistance of Low Pressure Plasma-Sprayed ZrB2-Si Composite Coating

2013 ◽  
Vol 23 (3) ◽  
pp. 470-476 ◽  
Author(s):  
Yaran Niu ◽  
Hongyan Wang ◽  
Liping Huang ◽  
Hong Li ◽  
Xuanyong Liu ◽  
...  
Keyword(s):  
Composite Coating ◽  
Low Pressure ◽  
Pressure Plasma ◽  
Ablation Resistance ◽  
Low Pressure Plasma ◽  
Plasma Sprayed

Characteristics of Low Pressure Plasma Sprayed Alumina Coating

2009 ◽  
Vol 24 (1) ◽  
pp. 117-121 ◽  
Author(s):  
Chun-Ming DENG ◽  
Ke-Song ZHOU ◽  
Min LIU ◽  
Chang-Guang DENG ◽  
Jin-Bing SONG ◽  
...  
Keyword(s):  
Low Pressure ◽  
Alumina Coating ◽  
Pressure Plasma ◽  
Low Pressure Plasma ◽  
Plasma Sprayed

Preparation and characterization of aluminum-based coatings deposited by very low-pressure plasma spray

2019 ◽  
Vol 380 ◽  
pp. 125034 ◽  
Author(s):  
Xiujuan Fan ◽  
Geoffrey Darut ◽  
Marie Pierre Planche ◽  
Chen Song ◽  
Hanlin Liao ◽  
...  
Keyword(s):  
Plasma Spray ◽  
Low Pressure ◽  
Pressure Plasma ◽  
Low Pressure Plasma Spray ◽  
Low Pressure Plasma
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