Helmar B. Mayr,Malte Korten,Christine M. Andres,Brant U. Kolb,Holger Hauptmann,Gallus Schechner,Michael Jahns,Kathleen M. Humpa,Melissa A. Lackey
申请号：
US15574630
公开号：
US20180148378A1
申请日:
2016.05.18
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The present invention relates to a process for producing a ceramic article, the process comprising the steps of providing a printing sol, the printing sol comprising solvent, nano-sized particles, radiation curable monomer(s) and photoinitiator, the printing sol having a viscosity of less than 500 mPa*s at 23° C., processing the printing sol as construction material in an additive manufacturing process to obtain a 3-dim article being in a gel state, the 3-dim article having a Volume A, transferring the 3-dim article being in a gel state to a 3-dim article being in an aerogel state, heat treating the 3-dim article to obtain a sintered 3-dim ceramic article, the ceramic article having a Volume F, Volume A of the 3-dim article in a gel state being more than 500% of Volume F of the ceramic article in its sintered state. The invention also relates to a ceramic article obtainable according to such a process. The ceramic article can have the shape of a dental or orthodontic article.
