PL450556A1 - Sposób wytwarzania kompozytu wysokoogniotrwałego z węglika boru i fazy międzymetalicznej z układu Ti-Al - Google Patents

Sposób wytwarzania kompozytu wysokoogniotrwałego z węglika boru i fazy międzymetalicznej z układu Ti-Al

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Publication number
PL450556A1
PL450556A1 PL450556A PL45055624A PL450556A1 PL 450556 A1 PL450556 A1 PL 450556A1 PL 450556 A PL450556 A PL 450556A PL 45055624 A PL45055624 A PL 45055624A PL 450556 A1 PL450556 A1 PL 450556A1
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PL
Poland
Prior art keywords
alb2
tib2
highly refractory
tial3
ti3al
Prior art date
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PL450556A
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English (en)
Inventor
Dawid Kozień
Zbigniew Pędzich
Paweł Nieroda
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Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
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Application filed by Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie filed Critical Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Priority to PL450556A priority Critical patent/PL450556A1/pl
Priority to EP25163719.5A priority patent/EP4759787A1/en
Publication of PL450556A1 publication Critical patent/PL450556A1/pl

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Abstract

Przedmiotem zgłoszenia jest sposób wytwarzania kompozytu wysokoogniotrwałego z węglika boru B4C i fazy międzymetalicznej z układu Ti-Al, polegający na tym, że do proszku węglika boru B4C dodaje się proszek fazy międzymetalicznej z układu Ti-Al i ewentualnie boru B, a następnie całość miesza się w środowisku alkoholu izopropylowego przez 1 do 60 minut i suszy do całkowitego odparowania alkoholu przez 20 do 120 minut, po czym otrzymany proszek granuluje się, a następnie wstępnie formuje się kształtki i poddaje je prasowaniu izostatycznemu pod ciśnieniem od 100 do 200 MPa, a uzyskane wypraski poddaje się procesowi spiekania swobodnego w atmosferze argonu lub azotu, w temperaturze od 1050°C do 1750°C, z przyrostem temperatury wynoszącym od 2 do 10°C/minutę oraz czasem przetrzymania w temperaturze maksymalnej wynoszącym od 5 do 30 minut, uzyskując kompozyt wysokoogniotrwały, przy czym jako fazę międzymetaliczną z układu Ti-Al stosuje się: a) TiAl w stosunku molowym B4C:TiAl:B wynoszącym 1:2:1, z uzyskaniem kompozytu wysokoogniotrwałego TiB2-AlC-AlB2-TiAl składającego się wagowo z 40 do 70% TiB2, 2 do 25% AlC, 5 do AlB2 i 0,2 do 1,0% TiAl, albo b) Ti3Al w stosunku molowym B4C:Ti3Al wynoszącym 4:3, z uzyskaniem kompozytu wysokoogniotrwałego TiB2-TiC-AlB2-Ti3Al składającego się wagowo z 30 do 70% TiB2, 10 do 30% TiC, 5 do 40% AlB2 i 0,1 do 1,0% Ti3Al, albo c) TiAl3 w stosunku molowym B4C:TiAl3 wynoszącym 6:5, z uzyskaniem kompozytu wysokoogniotrwałego TiB2-Al4C3-AlB2-TiAl3 składającego się wagowo z 30 do 70% TiB2, 5 do 30% Al4C3, 5 do 40% AlB2 oraz 0,1 do 1,5% TiAl3, a wydajność procesu wynosi co najmniej 99%.
PL450556A 2024-12-13 2024-12-13 Sposób wytwarzania kompozytu wysokoogniotrwałego z węglika boru i fazy międzymetalicznej z układu Ti-Al PL450556A1 (pl)

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PL450556A PL450556A1 (pl) 2024-12-13 2024-12-13 Sposób wytwarzania kompozytu wysokoogniotrwałego z węglika boru i fazy międzymetalicznej z układu Ti-Al
EP25163719.5A EP4759787A1 (en) 2024-12-13 2025-03-14 Method for producing a high-temperature refractory composite from boron carbide and an intermetallic phase of the ti-al system

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PL450556A PL450556A1 (pl) 2024-12-13 2024-12-13 Sposób wytwarzania kompozytu wysokoogniotrwałego z węglika boru i fazy międzymetalicznej z układu Ti-Al

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