A Novel Understanding of the Thermal Reaction Behavior and Mechanism of Ni/Al Energetic Structural Materials

被引：6

作者：

Wang, Kunyu ^{[1
]}

Deng, Peng ^{[1
]}

Liu, Rui ^{[1
]}

Ge, Chao ^{[1
]}

Wang, Haifu ^{[1
]}

Chen, Pengwan ^{[1
]}

机构：

[1] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China

来源：

CRYSTALS | 2022年 / 12卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Ni; Al energetic structural materials; thermal reaction; reaction kinetic model; two reaction stages; reaction mechanism; NONISOTHERMAL KINETICS; CHEMICAL-REACTIONS; DECOMPOSITION; TG;

D O I：

10.3390/cryst12111632

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Ni/Al energetic structural materials have attracted much attention due to their high energy release, but understanding their thermal reaction behavior and mechanism in order to guide their practical application is still a challenge. We reported a novel understanding of the thermal reaction behavior and mechanism of Ni/Al energetic structural materials in the inert atmosphere. The reaction kinetic model of Ni/Al energetic structural materials with Ni:Al molar ratios was obtained. The effect of the Ni:Al molar ratios on their thermal reactions was discussed based on the products of a Ni/Al thermal reaction. Moreover, depending on the melting point of Al, the thermal reaction stages were divided into two stages: the hard contact stage and soft contact stage. The liquid Al was adsorbed on the surface of Ni with high contact areas, leading in an aggravated thermal reaction of Ni/Al.

引用

页数：11

共 32 条

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