Glass matrix composites for transparent security measures

Boccaccini AR, McPhail D, Pang B (2011)

Publication Type: Journal article

Publication year: 2011

Journal

Materials World Maney Publishing

Publisher: Maney Publishing

Pages Range: 20-22

Journal Issue: 2

Abstract

The work at Imperial College London is processing and characterizing a range of opto-mechanical composites with a focus on alumina fiber-reinforced borosilicate glass matrix composites. In a typical experiment, oxalic acid solution is slowly poured into zirconyl chloride octahydrate solution and mixed under constant stirring. The air inside the fiber bundle can be evacuated using a vacuum pump. As the air is extracted, the sol is seen to bubble. Coated fibers are heat treated at 500°C for three hours at a slow heating rate of one degree per minute to diminish surface cracking. Sintering occurs at 1300°C after this calcination step. A hybrid sol-gel coating method has been developed to improve the coated surface's quality. After surface treatment, the composite exhibits qualitatively good transparency. The average strength of the composites is found to be in the range 30-4OMPa, with decreased spacing and increased fiber content resulting in a slightly higher average flexural strength.

Authors with CRIS profile

Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Imperial College London / The Imperial College of Science, Technology and Medicine GB United Kingdom (GB)

How to cite

APA:

Boccaccini, A.R., McPhail, D., & Pang, B. (2011). Glass matrix composites for transparent security measures. Materials World, 2, 20-22.

MLA:

Boccaccini, Aldo R., David McPhail, and Bo Pang. "Glass matrix composites for transparent security measures." Materials World 2 (2011): 20-22.

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