Enhanced Combustion Properties of Al-Si Eutectic Alloy in Energetic Mixtures

被引：0

作者：

Ketegenov, Tlek ^{[1
]}

Vongay, Igor ^{[2
]}

Chervyakova, Oksana ^{[2
]}

Kalmuratova, Bakhyt ^{[3
]}

Kononov, Anton ^{[1
]}

Kamunur, Kaster ^{[1
,3
]}

Nadirov, Rashid ^{[1
,3
]}

机构：

[1] Inst Combust Problems, Bogenbay batyr St 172, Alma Ata 050012, Kazakhstan

[2] LLP AlmaDK, Alma Ata 041605, Kazakhstan

[3] Al Farabi Kazakh Natl Univ, Fac Chem & Chem Technol, Alma Ata 050040, Kazakhstan

来源：

MATERIALS | 2024年 / 17卷 / 19期

关键词：

aluminum powder; Al-Si eutectic alloy; energetic mixture; burning rate; thermal decomposition; ALUMINUM POWDER; COMPOSITE PROPELLANTS; THERMAL-DEGRADATION; PARTICLE-SIZE; AGGLOMERATION; IGNITION;

D O I：

10.3390/ma17194890

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：

This study investigates the feasibility of using an Al-Si eutectic alloy as a reactive fuel in energetic mixtures. Al-Si eutectic alloy powders were obtained from secondary resources and ground to a particle size of less than 100 mu m. We examined these powders' burning characteristics and thermal properties compared to pure Al powder. Results showed that the burning rate of energetic mixtures containing Al-Si eutectic alloys was 1.5 to 2.0 mm/s higher than those with pure Al. Additionally, the activation energy of pure PTFE was reduced from 81.29 kJ/mol to 61.75 kJ/mol when the Al-Si alloy was added. The formation of oxides, carbides, and fluorides in the combustion products of Al-Si-based mixtures significantly influenced their thermodynamics.

引用

页数：11

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