Publication detail

Influence of Pressure on the Interaction between Alumina-Mullite Shell Moulds and Molten Nickel Alloys

CIHLÁŘ, J. MACA, K. MARQUIS, P.

Czech title

Vliv tlaku na interakci mezi korund-mulitovou formou a roztavenými niklovými slitinami

English title

Influence of Pressure on the Interaction between Alumina-Mullite Shell Moulds and Molten Nickel Alloys

Type

journal article - other

Language

en

Original abstract

The interaction of ceramic alumina-mullite mould with nickel and nickel alloys (ZhS6K, NiTi and NiCr) was studied at a temperature of 1773K in the pressure range from 0.1 Pa to 1 atm. The ceramic mould contained a continuous network of pores, which provided for the releasing of the gaseous phase at the mould/metal interface and thus facilitated physical and chemical erosion of the face layer of the mould at low pressures. Increasing the pressure of gaseous atmosphere to over 0.1 atm practically prevented the erosion of mould surface by nickel and its alloys.

Czech abstract

Byla studována interakce keramických korund-mulitových forem s niklem a jeho slitinami (ŽS6K, NiCr a NiTi) za teploty 1500C a tlacích od 0,1 Pa do 1 atm. Keramické formy obsahovaly spojitou síť pórů, což umožnilo přístup plynné fáze na rozhraní roztavený kov/forma a napomohlo fyzikální a chemické erozi lícní vrstvy formy při nízkých tlacích. Zvýšení tlaku okolní inertní atmosféry nad 0,1 atm prakticky zabránilo erozi formy kovem.

English abstract

The interaction of ceramic alumina-mullite mould with nickel and nickel alloys (ZhS6K, NiTi and NiCr) was studied at a temperature of 1773K in the pressure range from 0.1 Pa to 1 atm. The ceramic mould contained a continuous network of pores, which provided for the releasing of the gaseous phase at the mould/metal interface and thus facilitated physical and chemical erosion of the face layer of the mould at low pressures. Increasing the pressure of gaseous atmosphere to over 0.1 atm practically prevented the erosion of mould surface by nickel and its alloys.

Keywords in English

ceramic, metal, interaction

Released

01.01.1995

Publisher

Institute of Chemical Technology in Prague and Academy of Sciences of the Czech Republic

ISSN

0862-5468

Journal

Ceramics-Silikáty

Volume

39

Number

4

Pages from–to

145–154

Pages count

10

BIBTEX


@article{BUT46660,
  author="Jaroslav {Cihlář} and Karel {Maca} and Peter {Marquis},
  title="Influence of Pressure on the Interaction between Alumina-Mullite Shell Moulds and Molten Nickel Alloys",
  journal="Ceramics-Silikáty",
  year="1995",
  volume="39",
  number="4",
  month="January",
  pages="145--154",
  publisher="Institute of Chemical Technology in Prague and Academy of Sciences of the Czech Republic",
  issn="0862-5468"
}