| Title |
Fabrication and Characteristics of Bioceramics for artificial dental Crowns ( Fabrication and Sintering Characteristics ) |
| Authors |
고영호(Y . Ho Koh) ; 한복섭(B . Seob Han) ; 이준희(J . Hee Lee) ; 최석규, 최진원(S . Kyu Choi) |
| Abstract |
Bioceramics for artificial dental crowns in dentistry have been fabricated by sol-gel process and melting method, respectively. Sintering characteristics have been investigated after compositing powder mixtures relative to leucite content(0∼30wt.%) added to glass matrix. Highly pure leucite powders have been fabricated by sol-gel process and glass powders have been manufactured with 20∼30㎛ particle size by a melting method. Sintering temperatures could be controlled from 1020℃ to 1175℃ relative to the powder mixtures of leucite and glass powders. The relative sintered density was 80∼83% of theoretical density. Shrinkage was about 20∼25% after sintering. |