| dc.description.abstract | Questions have been asked about the stability of RS-RDX with regard to shock sensitivity during the lifecycle of a PBX.
To study if RS-RDX does change properties due to ageing, PBXN-109 was selected as our composition for an ageing
study. RDX crystals were produced by Dyno Nobel. The study includes testing of virgin PBXN-109 and PBXN-109
aged at 60o
C for 3, 6, 12 and 18 months. In addition to shock sensitivity determined by Intermediate Scale Gap Test, the
test programme included testing of Critical Diameter and Shore A hardness.
This report contains test results for PBXN-109 aged 12 mounts at 60o
C. The obtained shock sensitivity and critical
diameter were equal to the properties of virgin PBXN-109 containing RS-RDX. For PBXN-109 aged 12 months a shock
sensitivity of 55 kbar and critical diameter of 7.5 mm was observed. The Shore A hardness has increased slightly after
ageing at 60o
C for 12 months both compared with the Shore A hardness properties of virgin and samples aged for 3 and
6 months. | en_GB |