Premium
Development of Low‐Toxicity Gelcasting Systems
Author(s) -
Janney Mark A.,
Omatete Ogbemi O.,
Walls Claudia A.,
Nunn Stephen D.,
Ogle Randy J.,
Westmoreland Gary
Publication year - 1998
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.1151-2916.1998.tb02377.x
Subject(s) - materials science , casting , acrylamide , silicon nitride , reagent , pyrolysis , machining , chemical engineering , polymer , silicon , composite material , metallurgy , organic chemistry , chemistry , monomer , engineering
A series of low‐toxicity gelcasting systems has been developed. The reagents used in these systems have very low acute toxicity. The new systems perform at least as well as, and in some cases better than, the original acrylamide‐based system. The development of these systems is described herein, including the search for new gel compositions, the study of suspensions made with the new gel precursor solutions, and pyrolysis of the dried gels and gelcast parts. Applications of the new gelcasting systems include complex silicon nitride parts, large‐diameter rings, rapid prototyping by green machining, and metal‐powder gel casting.