Accession Number : AD1042115

Title :   Influence of Thermal Annealing and a Glass Coating on the Strength of Soda-Lime-Silicate Glass

Descriptive Note : Technical Report,31 Aug 2012,01 Sep 2013

Corporate Author : US Army Research Laboratory Aberdeen Proving Ground United States

Personal Author(s) : Gaviola,Mariel H ; Kilczewski,Steven ; Swab,Jeffrey J ; Patel,Parimal J ; Gilde,Luke

Full Text :

Report Date : 01 Nov 2017

Pagination or Media Count : 16

Abstract : This project investigated the influence that thermal annealing and the addition of a glass coating has on the flexure strength of a soda-lime-silicate glass used in a variety of military ballistic armor applications. A mixture of glass powder and isopropyl alcohol was sprayed onto the tin side of as-manufactured soda-lime-silicate glass plates and on plates with a 10-mm-long scratch created with either a 1- or 10-N scratch load. The glass coating was cured using an annealing cycle of 6 C/min from room temperature to 675 C, followed by a 1.5-h hold at temperature, and then cool down to room temperature at 3 C/min. Plates that were scratched showed a noticeable strength increase following the annealing process; however, the addition of the glass coating did not result in an additional strength increase for the scratched plates.

Descriptors :   annealing , dynamic pressure , silicates , static pressure , bulletproof glass , spray guns , water vapor , thickness , adhesion , military applications , armor , military vehicles

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE