EP 2776378 A1 20140917 - METHOD FOR PRODUCING TRANSPARENT CERAMIC OBJECTS BY MEANS OF FLUIDISED BED GRANULATION
Title (en)
METHOD FOR PRODUCING TRANSPARENT CERAMIC OBJECTS BY MEANS OF FLUIDISED BED GRANULATION
Title (de)
VERFAHREN ZUR HERSTELLUNG TRANSPARENTER KERAMIKGEGENSTÄNDE MITTELS WIRBELSCHICHTGRANULATION
Title (fr)
PROCÉDÉ POUR PRODUIRE DES OBJETS EN CÉRAMIQUE TRANSPARENTE PAR GRANULATION EN LIT FLUIDISÉ
Publication
Application
Priority
- DE 102011086100 A 20111110
- EP 2012072344 W 20121112
Abstract (en)
[origin: WO2013068576A1] The invention relates to a method for producing transparent ceramic objects having an RIT > 10% in the wave length range of 300nm to 4000nm and a wall thickness of 2 mm. Said method consists of the following steps: producing a slip by dispersing a ceramic powder, the particle size of which is d50 < 5µm, preferably between 5nm and 500nm; producing a granular material, the particle size of which is d50 < 1mm, preferably between 50µm and 500µm, more preferably between 80µm and 300µm, from the slip by means of fluidised bed granulation; pressing the granular material in a simple, non-cyclical manner to form a green body; sintering the green body to form a sintered body; and re-densifying the sintered body.
IPC 8 full level
C04B 35/115 (2006.01); B01J 2/16 (2006.01); C04B 35/44 (2006.01); C04B 35/443 (2006.01); C04B 35/581 (2006.01); C04B 35/626 (2006.01); C04B 35/645 (2006.01)
CPC (source: EP US)
B01J 2/16 (2013.01 - EP US); C04B 35/115 (2013.01 - EP US); C04B 35/44 (2013.01 - EP US); C04B 35/443 (2013.01 - EP US); C04B 35/581 (2013.01 - EP US); C04B 35/6261 (2013.01 - EP US); C04B 35/6263 (2013.01 - EP US); C04B 35/62655 (2013.01 - EP US); C04B 35/62695 (2013.01 - EP US); C04B 35/645 (2013.01 - US); C04B 35/6455 (2013.01 - EP US); C04B 2235/3225 (2013.01 - EP US); C04B 2235/5427 (2013.01 - EP US); C04B 2235/5436 (2013.01 - EP US); C04B 2235/5445 (2013.01 - EP US); C04B 2235/604 (2013.01 - EP US); C04B 2235/608 (2013.01 - EP US); C04B 2235/656 (2013.01 - EP US); C04B 2235/661 (2013.01 - EP US); C04B 2235/764 (2013.01 - EP US); C04B 2235/77 (2013.01 - EP US); C04B 2235/9653 (2013.01 - EP US)
Citation (search report)
See references of WO 2013068576A1
Citation (examination)
- DD 274980 A1 19900110 - LEUNA WERKE VEB [DD]
- WO 2013068418 A1 20130516 - CERAMTEC ETEC GMBH [DE], et al
- WO 2011077379 A1 20110630 - SAINT GOBAIN CT RECHERCHES, et al
- DE 19602525 A1 19970807 - STARCK H C GMBH CO KG [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102012220518 A1 20130516; BR 112014011382 A2 20170613; BR 112014011382 A8 20170620; CN 104220397 A 20141217; EP 2776378 A1 20140917; IL 232543 A0 20140630; IN 4217CHN2014 A 20150717; JP 2015501775 A 20150119; KR 20140103938 A 20140827; RU 2014123398 A 20151220; US 2014374931 A1 20141225; WO 2013068576 A1 20130516
DOCDB simple family (application)
DE 102012220518 A 20121112; BR 112014011382 A 20121112; CN 201280066625 A 20121112; EP 12783242 A 20121112; EP 2012072344 W 20121112; IL 23254314 A 20140511; IN 4217CHN2014 A 20140605; JP 2014540497 A 20121112; KR 20147015766 A 20121112; RU 2014123398 A 20121112; US 201214357472 A 20121112