Szczegóły publikacji
Opis bibliograficzny
Method for producing a high-temperature refractory composite from boron carbide and an intermetallic phase of the $Ti-Al$ system / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie ; wynalazca: KOZIEŃ Dawid, PĘDZICH Zbigniew, NIERODA Paweł. — Int.Cl.: C04B 35/56(2006.01). — European Patent Office. — Opis zgłoszeniowy wynalazku ; EP4759787A1 ; Opubl. 2026-06-17. — Zgłosz. nr EP25163719A z dn. 2025-03-14
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 169129 |
|---|---|
| Data dodania do BaDAP | 2026-09-20 |
| Tekst źródłowy | URL |
| Rok publikacji | 2026 |
| Typ publikacji | zgłoszenie patentowe |
| Otwarty dostęp |  |
Abstract
The subject matter of the invention is a method for producing a high-temperature refractory composite from boron carbide B4C and an intermetallic phase of the Ti-Al system, which is characterized in that a powder of the intermetallic phase of the Ti-Al system and optionally boron B is added to the boron carbide B4C powder, and then the whole is mixed in an isopropyl alcohol environment for 1 to 60 minutes and dried until complete alcohol evaporation for 20 to 120 minutes, after which the obtained powder is granulated, and then the shaped pieces are pre-formed and subjected to an isostatic pressing at a pressure of 100 to 200 MPa, and the obtained compacts are subjected to a free sintering process in an argon or nitrogen atmosphere, at a temperature of 1050 to 1750°C, with a temperature increase of 2 to 10°C/minute and a holding time at the maximum temperature of 5 to 30 minutes, to obtain the high-temperature refractory composite, wherein as the intermetallic phase of the Ti-Al system is used: a) TiAl in a B4C:TiAl:B molar ratio of 1:2:1, to obtain a high-temperature refractory composite TiB2-AlC-AlB2-TiAl consisting of 40 to 70% TiB2, 2 to 25% AlC, 5 to 40% AlB2 and 0.2 to 1.0% TiAl by weight, or b) Ti3Al in a B4C:Ti3Al molar ratio of 4:3, to obtain a high-temperature refractory composite TiB2-TiC-AlB2-Ti3Al consisting of 30 to 70% TiB2, 10 to 30% TiC, 5 to 40% AlB2 and 0.1 to 1.0% Ti3Al by weight, or c) TiAl3 in a B4C:TiAl3 molar ratio of 6:5, to obtain a high-temperature refractory composite TiB2-Al4C3-AlB2-TiAl3 consisting of 30 to 70% TiB2, 5 to 30% Al4C3, 5 to 40% AlB2 and 0.1 to 1.5% TiAl3 by weight,and the process efficiency is at least 99%.
