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Cover Picture: Energy Performance and Aging of RDX‐based TiH 2 , MgH 2 Explosive Composites (Prop., Explos., Pyrotech. 7/2018)
Author(s) -
Xue Bing,
Lin Moujin,
Ma Honghao,
Wang Yixin,
Shen Zhaowu
Publication year - 2018
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201880701
Subject(s) - explosive material , materials science , composite material , hydrogen storage , decomposition , energetic material , hydride , accelerated aging , forensic engineering , metal , metallurgy , chemistry , alloy , organic chemistry , engineering
The cover picture shows the RDX based MgH 2 (MHR‐10) and TiH 2 (THR‐10) explosive charges aging in the ambient environment. During the 2‐year storage tests, the weights and sizes of MHR‐10 charges were increased significantly because of the hydrolysis and decomposition of MgH 2 . Micro‐cracks and defects due to hydrogen generation resulted in a remarkably strength loss of the MHR‐10 charges. Whereas, further degradation of TiH 2 was prevented by the formation of the external TiO 2 film, which ensured the compatibility and stability of the THR‐10 explosive composites. Though the energy performance of the studied fresh RDX based metal hydride explosives was promoted (illustrated by underwater explosion tests), the storage stability of MHR‐10 was unsatisfied for practical application. Details are discussed in the article by Bing Xue et al. on page 671 ff.