Global Patent Index - EP 1054846 A1

EP 1054846 A1 2000-11-29 - Si/C/N-BASED CERAMICS OBTAINED BY POLYMER PYROLYSIS AS MATERIALS FOR TRIBOLOGICAL APPLICATIONS

Title (en)

Si/C/N-BASED CERAMICS OBTAINED BY POLYMER PYROLYSIS AS MATERIALS FOR TRIBOLOGICAL APPLICATIONS

Title (de)

POLYMER-PYROLYSE-KERAMIKEN AUF Si/C/N-BASIS ALS WERKSTOFFE FÜR TRIBOLOGISCHE ANWENDUNGEN

Title (fr)

CERAMIQUES A BASE DE Si/C/N OBENUES PAR PYROLYSE DE POLYMERE UTILISEES COMME MATERIAUX POUR LA REALISATION D'ELEMENTS A FRICTION

Publication

EP 1054846 A1 (DE)

Application

EP 99907545 A

Priority

  • DE 19806044 A
  • EP 9900921 W

Abstract (en)

[origin: DE19806044A1] The invention relates to a method for producing crack-free Si/C/N-based moulded ceramic bodies by hot press moulding of cross-linked polysilazane powder and subsequent pyrolysis of the moulded body obtained by hot press moulding. The press temperature is higher than the maximum temperature in the TMA diagram of the optimally cross-linked polymer.

IPC 1-7 (main, further and additional classification)

C04B 35/589; F16D 69/02

IPC 8 full level (invention and additional information)

C04B 35/571 (2006.01); C04B 35/589 (2006.01); F16D 69/02 (2006.01)

CPC (invention and additional information)

C04B 35/589 (2013.01); F16D 69/023 (2013.01); F16D 2200/0047 (2013.01)

Citation (search report)

See references of WO 9941211A1

Designated contracting state (EPC)

DE FR GB IE SE

EPO simple patent family

DE 19806044 A1 19990819; EP 1054846 A1 20001129; JP 2002503622 A 20020205; US 6458315 B1 20021001; WO 9941211 A1 19990819

INPADOC legal status


2006-04-12 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20050901

2000-11-29 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000807

2000-11-29 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IE SE