High Temperature Ablation of Composite Material under Plasma Jet Impact

被引:7
|
作者
Levinskas, Rimantas [1 ]
Kezelis, Romualdas [1 ]
Brinkiene, Kristina [1 ]
Grigaitiene, Viktorija [1 ]
Valincius, Vitas [1 ]
Lukosiute, Irena [1 ]
Kavaliauskas, Zydrunas [1 ]
Baltusnikas, Arunas [1 ]
机构
[1] Lithuanian Energy Inst, LT-44403 Kaunas, Lithuania
来源
MATERIALS SCIENCE-MEDZIAGOTYRA | 2011年 / 17卷 / 04期
关键词
plasma jet; protective shell; silicate composite; thermal resistance; ablation; XRD;
D O I
10.5755/j01.ms.17.4.781
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Simulation of the temperature distribution on space vehicles surfaces during its reentry phase is most important for assessing its landing safety. Recently composite materials, produced from high temperature resistance composites are under intensive investigations as surface protective shell for space vehicles during its reentry phases into the atmosphere. The main goal of research is to imitate high aerodynamic heating rates encountered by the protective material during reentry phases of space vehicles. This paper reports the experimental investigations of the new composite material based Oil light silicate frame impregnated by polymer composite tested in high temperature air jet, and generated by means of plasma torch. During experiments the plasma parameters were as follows: plasma torch capacity - (50-70) kW, air flow rate - (19-23) g/s, temperature - (1320-2420)degrees C, velocity - (40-50) m/s. To analyze the effect of the plasma jet impact to protective composite shell, the high speed camera movies were used. Temperature of samples set surface was measured using Type K (chrornel/alumel) thermocouples. Data of composite material ablation rate and temperature of protective sample set surface during experiment are presented.
引用
收藏
页码:423 / 427
页数:5
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