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Ultrasonic Sol/Gel Processing of Aluminoborosilicate Glass and Its Composite with Carbon Fiber Reinforcement
Author(s) -
Chiou Song,
Hahn H. Thomas
Publication year - 1994
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1994.tb06970.x
Subject(s) - materials science , composite material , composite number , glass fiber , fiber , fracture toughness , ultrasonic sensor , shrinkage , flexural strength , modulus , toughness , reinforcement , physics , acoustics
An ultrasonic sol/gel technique has been used to process aluminoborosilicate glass and its composite with carbon fiber reinforcement. In this new technique, ultrasonic energy is used in place of alcohol solvent. Gel time is easily controlled by varying the amount of ultrasonic energy and the resulting gel also exhibits less shrinkage during the densification process. The sonogel‐based composite has lower flexural strengths than the alcogel and has close values between the measured moduli, while still retaining the same fracture toughness. Micromechanical analysis produces higher values; however, ill is suspected that the in situ modulus of matrix is lower than the value used in the analysis.