CPC B28B 1/001 (2013.01) [C03B 19/06 (2013.01); C04B 35/111 (2013.01); C04B 35/14 (2013.01); C04B 35/443 (2013.01); C04B 35/46 (2013.01); C04B 35/565 (2013.01); C04B 35/581 (2013.01); C04B 35/584 (2013.01); C04B 35/6263 (2013.01); C04B 35/62625 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 80/00 (2014.12); C04B 2235/3217 (2013.01); C04B 2235/5427 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/602 (2013.01); C04B 2235/608 (2013.01); C04B 2235/61 (2013.01); C04B 2235/614 (2013.01); C04B 2235/658 (2013.01); C04B 2235/665 (2013.01); C04B 2235/80 (2013.01)] | 25 Claims |
1. A process for preparing a 3-dimensional vitreous or ceramic body, which comprises at least the following steps:
a) providing an electrostatically stabilized suspension of particles;
b) effecting a local destabilization of the suspension of particles by a localized electrical discharge between a charge injector and the suspension at a predetermined position and causing an aggregation and precipitation of the particles at said position;
c) repeating step b) at different positions and causing a formation of larger aggregates until a final aggregate of particles representing the 3-dimensional body having predetermined dimensions has been formed;
wherein the charge injector includes i) at least one discharge electrode which does not contact said suspension of particles or ii) a source of charged particles.
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