Accession Number:

ADA411065

Title:

Barrel Wear Reduction in Rail Guns: An Investigation of Silver Paste Liquid-Metal Interface

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

2002-12-01

Pagination or Media Count:

62.0

Abstract:

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 ms, while average current densities of 18 - 32 kAcm2 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 25kAcm2 anticipated for a naval rail gun. Voltages across the rails were monitored and changes in conductivity when solid electrical contact was broken were observed.

Subject Categories:

  • Guns
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE