DAPO‐LLM‐105: Improving the Particle Morphology and Thermal Stability

Pasquinet, Éric; Pin, Nicolas; Forzy, Alexandre; Palmas, P.; Rideau, Joël; Beaucamp, Arnaud; Lalière, Eric; Perdrigeat, Marie‐L.; Quéré, Stéphane; Barthet, Christelle; Wuillaume, Anne

doi:10.1002/prep.201800151

Cited by 12 publications

(6 citation statements)

References 3 publications

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“…LLM‐105, as synthesized by Lawrence Livermore National Laboratory in 1995, is known as a potential insensitive high explosive (IHE) which has good prospects for application in insensitive munitions (IM) or boosters . It has a nice safety performance and 15 % higher energy than 1, 3, 5‐triamino‐2, 4, 6‐trinitrobenzene (TATB) .…”

Section: Introductionmentioning

confidence: 99%

Effects of Crystal Quality and Morphology on the Mechanical Performance of LLM‐105 Based PBXs

Yang

Lin

Gong

et al. 2019

Propellants Explo Pyrotec

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Mechanical performance is significant for the application of pressed polymer bonded explosives (PBXs) materials. In this research, several types of 2,6‐diamino‐3,5‐dinitropyrazine‐1‐oxide (LLM‐105) were selected to study the effects of crystal quality and morphology on the mechanical performance of LLM‐105 based PBXs. The surface bonding status of the LLM‐105 crystal and molding powder was characterized by scanning electron microscopy (SEM) and contact angle analysis, and the moldability was evaluated by determining the relative density of pressed cylinders of corresponding PBXs. Besides, static and dynamic mechanical properties were studied and compared, presenting the compressive, tensile and creep curves. For LLM‐105 based PBXs, spherical morphology and rough surface could result improved mechanical strength and creep resistance, facilitating the structural and dimensional stability of charges. In this case, it can bring benefits for their reliability and safety performances during application.

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Section: Introductionmentioning

confidence: 99%

Effects of Crystal Quality and Morphology on the Mechanical Performance of LLM‐105 Based PBXs

Yang

Lin

Gong

et al. 2019

Propellants Explo Pyrotec

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“…It has an excellent safety performance and its calculated energy content is about 85 % that of HMX and 15 % higher than TATB [11]. LLM-105 has raised the interests of many scientists and been used in PBX explosives including insensitive boosters, detonators [12][13][14]. However, there were few reports on the LLM-105based network boosters.…”

Section: Introductionmentioning

confidence: 99%

Preparation of LLM‐105‐Based Explosive Ink and Its Detonating Transfer Performance in Explosive Network

Cai

Luo

Huang

et al. 2022

Propellants Explo Pyrotec

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A new explosive ink based on 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) was designed and prepared. The explosive ink was deposited into micro-size grooves by using direct ink writing (DIW) technology and its detonation properties in an explosive network were explored. The properties of impact sensitivity, detonation velocity and critical size of detonation were determined and analyzed. The results show that this explosive has a good impact safety. When the LLM-105 content is 88 % and the density is 95 % TMD, the detonation velocity and critical size of detonation values are 7,771 m/s and 0.5 × 0.5 mm respectively. Moreover detonation velocity results indicated the explosive ink in micro-size grooves loaded by DIW was uniform.

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“…2,6-diamino-3,5-dinitropyrazine-1-oxide (C 4 H 4 N 6 O 5 , LLM-105), as a new generation of energetic material and a typical nitro energetic materials, it was firstly synthesized by Lawrence Livermore National Laboratory in 1995. Comparing to commonly known energetic materials such as octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine(HMX) or 1, 3, 5-triamino-2, 4, 6-trinitrobenzene (TATB), LLM-105 presents a good safety performance and high energy density.For example, the drop-height value (Dh50) of LLM-105 is 117 cm and that of HMX is 30 cm.In the meantime, LLM-105 has high energy level which is equivalent to 85% of HMX and LLM-105 has 15% higher energy than that of TATB [1,2].Due to these outstanding properties, LLM-105 presents good prospects for usage in boosters [3] or insensitive munitions (IM) [4].…”

Section: Introductionmentioning

confidence: 99%

First-Principles Study of the Electronic Structure of LLM-105 Crystal and (101) Plane Under High Pressure

Gong¹,

Zhu²,

Qiao³

et al. 2022

Preprint

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The electronic structural evolution of LLM-105 crystal and the (101) plane of LLM-105 crystal under different pressures is investigated by the density functional theory (DFT) calculations and the surface properties of seven low-Miller-index planes of LLM-105 crystal were investigated in this study. The result demonstrates that the surface energy of (101) plane of LLM-105 is much smaller when compared with other low-Miller-index planes of LLM-105.In order to further investigate the stability of crystal structure and (101) plane of LLM-105 under different pressures, a series of pressures ranged from 0 GPa to 55 GPa were applied during the DFT calculation, and the result shows that the electronic structures of LLM-105 crystal and the (101) plane changed with the increase of external pressure and the evolution process of (101) plane is different from that of LLM-105 crystal structure.

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DAPO‐LLM‐105: Improving the Particle Morphology and Thermal Stability

Cited by 12 publications

References 3 publications

Effects of Crystal Quality and Morphology on the Mechanical Performance of LLM‐105 Based PBXs

Effects of Crystal Quality and Morphology on the Mechanical Performance of LLM‐105 Based PBXs

Preparation of LLM‐105‐Based Explosive Ink and Its Detonating Transfer Performance in Explosive Network

First-Principles Study of the Electronic Structure of LLM-105 Crystal and (101) Plane Under High Pressure

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