Search -
Barrel Wear Reduction in Rail Guns: An Investigation of Silver Paste Liquid-Metal Interface
Barrel Wear Reduction in Rail Guns An Investigation of Silver Paste Liquid-Metal Interface Author:Michael W. Smith This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A560114. The abstract provided by... more » the Pentagon follows: This thesis tests the effects a commercial silver paste has on the damage at the projectile-rail interface of a 4" long rail gun test section. Projectiles (0.635 x 0.635 x 0.953 cm) were pushed through the rail test section at 34 plus or minus 19 m/s, while average current densities of 18 - 32 kA/cm2 was passed through the projectile - rail interface material. The specific objective is to examine rail and projectile damage at current densities near or above those (^25kA/cm2) anticipated for a naval rail gun. Voltages across the rails were monitored and changes in conductivity when solid electrical contact was broken were observed.« less