Small Ceramic Piston for Hydraulic Brakes
| Publication Number: | SI21859A |
| Application Date: | 21. 7. 2004 |
| Assignee/Applicant: | Jožef Stefan Institute [SI], MS Production Miklavž Zornik s.p. [SI] |
| Inventor: | Aleš Dakskobler, Tomaž Kosmač, Zmagoslav Stadler |
| Title: | Keramični batek za hidravlične zavore [SL], Small Ceramic Piston for Hydraulic Brakes [EN] |
| Description: | The subject of the invention is a small piston for hydraulic brakes, preferably for vehicles, manufactured from transformation stabilised mullite ceramic (ZTM ceramic), consisting of a mullite matrix and dispersed parts of predominantly tetragonal ZrO2. The piston according to the invention protects the brake cheeks and hydraulic fluid within them against overheating, is resistant to quick temperature changes, and it does not break with catastrophic destruction upon mechanical and/or thermal overloads. This way it enables effective and safe operation of the braking system upon aggressive and long braking, which is provided by modern braking systems. The piston according to the invention is made in such a way that the synthetic mullite powder, made either by remelting sintering, coprecipitation, salt-gel reaction or any other reaction in solid, liquid or gas form, and ZrO2 powder, eventually doped with Y2O3 or CeO2 or any other oxide stabilizing the ZrO2 tetragonal phase, are used as basic raw materials, or a mixture of constituents in corresponding mole proportions or their compounds along with natural minerals, which during sintering react upon generation of mulllite and ZrO2, which can be doped by Y2O3 or CeO2 or any other oxide stabilizing the ZrO2 tetragonal phase; for preparing stock any known procedure of dry, wet or plastic processing like pressing, casting, spraying, extrusion with subsequent mechanical processing can be applied, while after processing the samples are dried or the organic additives, required for processing are removed from them, and sintered at temperatures, when such type of ceramics thickens to sealed porosity or maximum relative thickness. |
| Drawings: | / |
| Category: | Nanotechnology and New Materials |
| Technology application codes: | Industrial manufacturing, material and transport |
| Market application codes: | Industrial products |
| www: | https://worldwide.espacenet.com/patent/search/family/035457721/publication/SI21859A?q=si21859 |
| Patent offices: | UIL RS |
Extended patent application
| Publication Number: | WO2006009522A1 |
| Application Date: | 14. 7. 2005 |
| Assignee/Applicant: | Jožef Stefan Institute [SI], Aleš Dakskobler [SI], Tomaž Kosmač [SI], MS Production Miklavž Zornik s. p. [SI], Zmagoslav Stadler [SI] |
| Inventor: | Aleš Dakskobler, Tomaž Kosmač, Zmagoslav Stadler |
| Title: | Ceramic Piston for Hydraulic Brakes |
| www: | https://worldwide.espacenet.com/patent/search/family/035457721/publication/WO2006009522A1?q=%20WO2006009522A1 |