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Study on Gelcasting of Fused Silica Glass Using Glutinous Rice Flour as Binder
Author(s) -
Wan Wei,
Huang Chune,
Yang Jian,
Qiu Tai
Publication year - 2014
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/ijag.12060
Subject(s) - materials science , flexural strength , composite material , ceramic , colloid , colloidal silica , chemical engineering , engineering , coating
Gelcasting is a colloidal processing method for fabricating high‐strength and complex shape ceramic green bodies. However, industry has been reluctant to use the gelcasting technique because the most commonly used gel, acrylamide ( AM ), is a neurotoxin. Here, we report an attempt at the gelcasting of fused silica glass using a natural and nontoxic gel, glutinous rice flour ( GRF ) as binder. The GRF ‐based aqueous system was found to behave excellently in the gelcasting process. Flexural strength of fused silica green bodies solidified with only 3 wt% GRF is up to 11.87 MP a. Bulk density and flexural strength of fused silica glass sintered at 1275 °C are 1.75 g/cm 3 and 47.02 MP a, respectively.