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Oxynitride Glass Reinforced Cement Composites

Published online by Cambridge University Press:  16 February 2011

Gary. L. Leatherman ,
Tahar El-Korchi ,
Thomas M. Holmes  and
R. Nathan Katz
Gary. L. Leatherman
Affiliation:
Worcester Polytechnic Institute Worcester, Massachusetts
Tahar El-Korchi
Affiliation:
Worcester Polytechnic Institute Worcester, Massachusetts
Thomas M. Holmes
Affiliation:
Worcester Polytechnic Institute Worcester, Massachusetts
R. Nathan Katz
Affiliation:
Worcester Polytechnic Institute Worcester, Massachusetts
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Abstract

Glass fiber reinforced composites made with an oxynitride analogue of alkali resistant glass were tested in tension after accelerated aging. The results were compared to composites made from oxide alkali resistant glass. The strength of the oxynitride glass reinforced composites was almost double that of the oxide glass based material. The results are related to the improved properties of oxynitride glass over oxide glass. In particular previous work has shown that surface chemistry of the oxynitride glass inhibits the formation of a strong bond between fiber and matrix. The difference in surface chemistry was examined by measuring the contact angle of aqueous solutions with respect to nitrogen content of the glass.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 211: Symposium O – Fiber-Reinforced Cementitious Materials , 1990 , 105
Copyright
Copyright © Materials Research Society 1991

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