Alumina-Based Ceramics for Armor Application : Mechanical Characterization and Ballistic Testing
Joint Authors
Hotza, Dachamir
al-Qureshi, H. A.
Stainer, Daniel
Montedo, Oscar Rubem Klegues
Silva, M. V.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-01-09
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
The aim of this work is to present results of mechanical characterization and ballistic test of alumina-based armor plates.
Three compositions (92, 96, and 99 wt% Al2O3) were tested for 10 mm thick plates processed in an industrial plant.
Samples were pressed at 110 MPa and sintered at 1600°C for 6 h.
Relative density, Vickers hardness, and four-point flexural strength measurements of samples after sintering were performed.
Results showed that the strength values ranged from 210 to 300 MPa depending on the porosity, with lower standard deviation for the 92 wt% Al2O3 sample.
Plates (120 mm × 120 mm × 12 mm) of this composition were selected for ballistic testing according to AISI 1045, using a metallic plate as backing and witness plates in the case of penetration or deformation.
Standard NIJ-0108.01 was followed in regard to the type of projectile to be used (7.62 × 51 AP, Level IV, 4068 J).
Five alumina plates were used in the ballistic tests (one shot per plate).
None of the five shots penetrated or even deformed the metal sheet, showing that the composition containing 92 wt% Al2O3 could be considered to be a potential ballistic ceramic, being able to withstand impacts with more than 4000 J of kinetic energy.
American Psychological Association (APA)
Silva, M. V.& Stainer, Daniel& al-Qureshi, H. A.& Montedo, Oscar Rubem Klegues& Hotza, Dachamir. 2014. Alumina-Based Ceramics for Armor Application : Mechanical Characterization and Ballistic Testing. Journal of Ceramics،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-485562
Modern Language Association (MLA)
Silva, M. V.…[et al.]. Alumina-Based Ceramics for Armor Application : Mechanical Characterization and Ballistic Testing. Journal of Ceramics No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-485562
American Medical Association (AMA)
Silva, M. V.& Stainer, Daniel& al-Qureshi, H. A.& Montedo, Oscar Rubem Klegues& Hotza, Dachamir. Alumina-Based Ceramics for Armor Application : Mechanical Characterization and Ballistic Testing. Journal of Ceramics. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-485562
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-485562