Ablation of pierced C/C composite nozzles in an oxygen/ethanol combustion gas generator

被引：35

作者：

Chen, Bo ^{[1
]}

Zhang, Li-Tong ^{[1
]}

Cheng, Lai-Fei ^{[1
]}

Luan, Xin-Gang ^{[1
]}

机构：

[1] NW Polytech Univ, Natl Key Lab Thermostruct Composite Mat, Xian 710072, Peoples R China

来源：

CARBON | 2009年 / 47卷 / 03期

关键词：

D O I：

10.1016/j.carbon.2008.10.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The ablation of pierced C/C composite nozzles was investigated via hot-fire testing by an oxygen/ethanol combustion gas generator simulating combustion environments of the liquid rocket engine. Ablation microstructures and mechanisms of the composite nozzle were discussed. The results showed that both linear ablation rate and mass ablation rate increased with increasing mass ratio of oxygen/ethanol. The ablation of the pierced C/C composite was attributed to the heterogeneous reactions between carbon and oxidizing species and could be interpreted by the thermochemical ablation model. The ablation rate of the composite was determined by both chemical kinetics and diffusion. The ablation of the composite resulted in cone-shape carbon fibers and shell-shape matrix with pits and grooves left on the surfaces. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：545 / 550

页数：6

共 17 条

[1]

ACHARYA R, 2006, 44 AIAA AER SCI M EX

[2]

Aspa Y., 2006, 9 AIAA ASME JOINT TH

[3]

BERDOYES M, 2006, 42 AIAA ASME SAE ASE

[4]

BOURY D, 2001, 37 AIAA ASME SAE ASE

[5]

GEISLER RL, 1975, 11 AIAA SAE PROP C

[6]

Gordon S., 1996, RP1311P2 NASA LEW RE

[7]

Gordon S, 1994, COMPUTER PROGRAM CAL

[8]

GUAN ZX, 2006, OPERATION SOLID ROCK, P210

[9]

HE HQ, 1993, J PROP TECHNOL, V14, P36

[10] VALIDATION OF AN AEROTHERMOCHEMICAL MODEL FOR GRAPHITE NOZZLE RECESSION AND HEAT-TRANSFER PROCESSES [J].

KESWANI, ST ;

KUO, KK .

COMBUSTION SCIENCE AND TECHNOLOGY, 1986, 47 (3-4) :177-192

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