The Microstructural Evolution in HMX Based Plastic-Bonded Explosive During Heating and Cooling Process: an in situ Small-angle Scattering Study | Zendy

Guanyun Yan | Zendy; Qiang Tian | Zendy; Jiahui Liu | Zendy; Zhijian Fan | Zendy; Guangai Sun | Zendy; Changsheng Zhang | Zendy; Yunlong Wang | Zendy; Bo Chen | Zendy; Jian Gong | Zendy; Xiaoqing Zhou | Zendy; Zhanfeng Yang | Zendy; Fude Nie | Zendy; Xiuhong Li | Zendy

Open Access

The Microstructural Evolution in HMX Based Plastic-Bonded Explosive During Heating and Cooling Process: an in situ Small-angle Scattering Study

Author(s) -

Guanyun Yan,

Qiang Tian,

Jiahui Liu,

Zhijian Fan,

Guangai Sun,

Changsheng Zhang,

Yunlong Wang,

Bo Chen,

Jian Gong,

Xiaoqing Zhou,

Zhanfeng Yang,

Fude Nie,

Xiuhong Li

Publication year - 2016

Publication title -

central european journal of energetic materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.512

H-Index - 25

eISSN - 2353-1843

pISSN - 1733-7178

DOI - 10.22211/cejem/65826

Subject(s) - materials science , explosive material , in situ , composite material , scattering , process (computing) , optics , chemistry , organic chemistry , physics , computer science , operating system

The thermal damage in octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) based plastic-bonded explosive (PBX) was investigated using in situ smallangle neutron and X-ray scattering techniques. The microstructural evolution was quantitatively characterized by the model fitting parameters of total interfacial surface area (Sv) and void volume distribution. The Sv of HMX-PBX decreased markedly above 100 °C, indicating the movement of binder into the voids. After subsequent cooling to room temperature, the scattering intensity increased significantly with increasing storage time, and a new population of voids with average diameter of 20 nm was observed, accompanied by the gradual phase transition of HMX from δto β-phase. The experimental results implied that serious damage within the HMX-PBX was developed during storage after heating.

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