Silica Crucibles for Molten Germanium with a Boron Nitride-Containing Composite Inner Layer

Silica Crucibles for Molten Germanium with a Boron Nitride-Containing Composite Inner Layer

— A process has been developed for the fabrication of double-layer silica ceramic crucibles with a composite inner layer containing 25 wt % boron nitride. We have studied the wettability of the container material by molten germanium in an argon atmosphere at a temperature of 1000°C. The contact angl...

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Veröffentlicht in:Inorganic materials 2021-02, Vol.57 (2), p.208-212
Hauptverfasser: Shimanskii, A. F., Podshibyakina, E. Yu, Samoilo, A. S., Zhizhaev, A. M., Gorodishcheva, A. N., Vasil’eva, M. N.
Format: Artikel
Sprache:eng
Schlagworte:
Argon
Boron nitride
Chemistry
Chemistry and Materials Science
Contact angle
Crucibles
Germanium
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Silicon dioxide
Silicones
Wettability
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Beschreibung
Zusammenfassung:— A process has been developed for the fabrication of double-layer silica ceramic crucibles with a composite inner layer containing 25 wt % boron nitride. We have studied the wettability of the container material by molten germanium in an argon atmosphere at a temperature of 1000°C. The contact angle has been determined to be 128°, exceeding that of BN-free silica ceramics by ~8°. The work of adhesion evaluated from the contact angle is 0.25 J/m 2 .
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168521020114