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Use of HEMA in Gelcasting of Ceramics: A Case Study on Fused Silica
Author(s) -
Zhang Yu,
Cheng YiBing
Publication year - 2006
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.1551-2916.2006.01152.x
Subject(s) - materials science , ceramic , composite material , methacrylate , aqueous solution , polymer , copolymer , organic chemistry , chemistry
Gelcasting is a useful method for producing high‐strength ceramic green parts. 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 material using a low‐toxicity gel, 2‐hydroxyethyl methacrylate (HEMA). The HEMA‐based aqueous system was found to perform as well as AM‐based systems in terms of the properties of gelcasting suspensions, cast green parts, and densified components. The new gelcasting system should be readily applicable to other ceramic materials.