The Thermal and Microstructural Effect of Plasticizing HMX-Nitrocellulose Composites

被引：15

作者：

Yeager, John D. ^{[1
]}

Watkins, Erik B. ^{[2
]}

Duque, Amanda L. Higginbotham ^{[1
]}

Majewski, Jaroslaw ^{[3
,4
]}

机构：

[1] Los Alamos Natl Lab, High Explos Sci & Technol, POB 1663,MS P952, Los Alamos, NM 87545 USA

[2] Los Alamos Natl Lab, Mat Synth & Integrated Devices, Los Alamos, NM USA

[3] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM USA

[4] Univ Calif Davis, Dept Chem Engn, Davis, CA 95616 USA

来源：

JOURNAL OF ENERGETIC MATERIALS | 2018年 / 36卷 / 01期

关键词：

HMX; neutron reflectometry; PBX; phase transformation; DELTA PHASE-TRANSITION; BONDED EXPLOSIVES; SHELF-LIFE; KINETICS; BETA; OCTAHYDRO-1,3,5,7-TETRANITRO-1,3,5,7-TETRAZOCINE; DECOMPOSITION; DEFORMATION; MECHANISM; FAILURE;

D O I：

10.1080/07370652.2017.1301597

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Thermal ignition via self-heating (cook-off) of cyclotetramethylene-tetrani-tramine (HMX)-containing plastic-bonded explosives (PBXs) is driven by the beta -> delta phase transition in the HMX, which is affected if not dominated by microstructure. Here, the HMX-binder interface and phase transition were studied for several variations of PBX 9404 (HMX with plasticized nitrocellulose [NC] binder). Neutron reflectometry was used to examine the interface under several conditions-pristine, after aging, and after thermal treatment. The initial interfacial structure depended on the plasticizer, but the interface homogenized over time. Thermal and optical analyses showed that all formulated materials had higher transition temperatures than neat HMX. This effect increased with NC content.

引用

页码：13 / 28

页数：16

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