Effect of hafnium carbide content on the ablative performance of carbon/carbon composites as rocket throats

Shu Ping Li; Ke Zhi Li; Hong Ying Du; Shou Yang Zhang; Xue Tao Shen

Effect of hafnium carbide content on the ablative performance of carbon/carbon composites as rocket throats

Shu Ping Li, Ke Zhi Li, Hong Ying Du, Shou Yang Zhang, Xue Tao Shen

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Hafnium carbide (HfC) modified carbon/carbon (HfC-C/C) composites were prepared by impregnating carbon felts with a saturated HfOCl₂·8H₂O ethanol solution and heat treating at 600°C to form HfO₂/C composites that were then densified with pyrocarbon by chemical vapor infiltration and graphitized at 2100°C to convert HfO₂ into HfC. The HfC-C/C composites as rocket throats were ablated at 7 MPa and around 3200°C for 3 s by an experimental solid rocket motor. Results showed that the HfC-C/C composites with HfC contents more than 5.7 mass% had a stable period with a constant ablation rate and the duration of this period increased with HfC content. The overall ablation rate was decreased by 25.2 and 49.6% for the composites having 5.7 and 8.7 mass% HfC respectively as compared with the composite with 2.5 mass% HfC.

Original language	English
Pages (from-to)	311-314
Number of pages	4
Journal	Xinxing Tan Cailiao/New Carbon Materials
Volume	27
Issue number	4
State	Published - Aug 2012

Keywords

Ablation performances
Carbon/carbon composites
Hafnium carbide
Solid rocket motor

Cite this

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title = "Effect of hafnium carbide content on the ablative performance of carbon/carbon composites as rocket throats",

abstract = "Hafnium carbide (HfC) modified carbon/carbon (HfC-C/C) composites were prepared by impregnating carbon felts with a saturated HfOCl2·8H2O ethanol solution and heat treating at 600°C to form HfO2/C composites that were then densified with pyrocarbon by chemical vapor infiltration and graphitized at 2100°C to convert HfO2 into HfC. The HfC-C/C composites as rocket throats were ablated at 7 MPa and around 3200°C for 3 s by an experimental solid rocket motor. Results showed that the HfC-C/C composites with HfC contents more than 5.7 mass% had a stable period with a constant ablation rate and the duration of this period increased with HfC content. The overall ablation rate was decreased by 25.2 and 49.6% for the composites having 5.7 and 8.7 mass% HfC respectively as compared with the composite with 2.5 mass% HfC.",

keywords = "Ablation performances, Carbon/carbon composites, Hafnium carbide, Solid rocket motor",

author = "Li, {Shu Ping} and Li, {Ke Zhi} and Du, {Hong Ying} and Zhang, {Shou Yang} and Shen, {Xue Tao}",

year = "2012",

month = aug,

language = "英语",

volume = "27",

pages = "311--314",

journal = "Xinxing Tan Cailiao/New Carbon Materials",

issn = "2097-1605",

publisher = "Science Press ",

number = "4",

}

TY - JOUR

T1 - Effect of hafnium carbide content on the ablative performance of carbon/carbon composites as rocket throats

AU - Li, Shu Ping

AU - Li, Ke Zhi

AU - Du, Hong Ying

AU - Zhang, Shou Yang

AU - Shen, Xue Tao

PY - 2012/8

Y1 - 2012/8

N2 - Hafnium carbide (HfC) modified carbon/carbon (HfC-C/C) composites were prepared by impregnating carbon felts with a saturated HfOCl2·8H2O ethanol solution and heat treating at 600°C to form HfO2/C composites that were then densified with pyrocarbon by chemical vapor infiltration and graphitized at 2100°C to convert HfO2 into HfC. The HfC-C/C composites as rocket throats were ablated at 7 MPa and around 3200°C for 3 s by an experimental solid rocket motor. Results showed that the HfC-C/C composites with HfC contents more than 5.7 mass% had a stable period with a constant ablation rate and the duration of this period increased with HfC content. The overall ablation rate was decreased by 25.2 and 49.6% for the composites having 5.7 and 8.7 mass% HfC respectively as compared with the composite with 2.5 mass% HfC.

AB - Hafnium carbide (HfC) modified carbon/carbon (HfC-C/C) composites were prepared by impregnating carbon felts with a saturated HfOCl2·8H2O ethanol solution and heat treating at 600°C to form HfO2/C composites that were then densified with pyrocarbon by chemical vapor infiltration and graphitized at 2100°C to convert HfO2 into HfC. The HfC-C/C composites as rocket throats were ablated at 7 MPa and around 3200°C for 3 s by an experimental solid rocket motor. Results showed that the HfC-C/C composites with HfC contents more than 5.7 mass% had a stable period with a constant ablation rate and the duration of this period increased with HfC content. The overall ablation rate was decreased by 25.2 and 49.6% for the composites having 5.7 and 8.7 mass% HfC respectively as compared with the composite with 2.5 mass% HfC.

KW - Ablation performances

KW - Carbon/carbon composites

KW - Hafnium carbide

KW - Solid rocket motor

UR - http://www.scopus.com/inward/record.url?scp=84867314930&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:84867314930

SN - 2097-1605

VL - 27

SP - 311

EP - 314

JO - Xinxing Tan Cailiao/New Carbon Materials

JF - Xinxing Tan Cailiao/New Carbon Materials

IS - 4

ER -

Effect of hafnium carbide content on the ablative performance of carbon/carbon composites as rocket throats

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