Fabrication of lightweight and thin bulletproof windows using borosilicate glass strengthened by ion exchange. (February 2015)

• Record Type: Journal Article
• Authors: Shim, Gyu-In; Eom, Hyeng-Woo; Kim, Seong-Hwan; Park, Jong-Kyoo; Choi, Se-Young
• Is Part Of: Composites. Volume 69(2015)
• Page Start: 44
• Page End: 49
• Publication Date: 2015-02
• Subjects: A. Glasses -- A. Laminate -- B. Mechanical properties -- E. Autoclave; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2014.09.023
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Borosilicate glass was strengthened by ion-exchange for lightweight bulletproof windows. The conditions for ion-exchange for strengthening borosilicate glass (3, 4 and 6 mm thick) produced the ultimate mechanical properties at 560 °C for each duration of 10, 12 and 15 min. The flexural strength values of the ion-exchanged glass with thickness of 3, 4 and 6 mm were 0.745, 0.783 and 0.810 GPa, respectively, which were about 2.8 times higher than parent glass. A lightweight bulletproof window could thus be manufactured from strengthened glass with a ballistic velocity of 889.4 m/s. The transmittance of bulletproof windows (over 86%) satisfied the international standards.