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 : https://apps.dtic.mil/dtic/tr/fulltext/u2/1042115.pdf


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