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BETA SILICON NITRIDE [1 record]

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Record 1 2011-02-15

English

Subject field(s)
  • Powder Metallurgy
  • Industrial Ceramics
OBS

Silicon nitride [exists in] two crystal structures: alpha (1400°C) and β (1400-1800°C), both hexagonal.

OBS

The word "alpha" must be replaced by the corresponding Greek letter.

Key term(s)
  • beta silicon nitride

French

Domaine(s)
  • Métallurgie des poudres
  • Céramiques industrielles
OBS

Nitrures de silicium. Le frittage [...] s'effectue en présence d'ajouts [...] Aux environs de 1700°C les particules de Si3N4 alpha [nitrure de silicium alpha] réagissent, [...] Si3N4 alpha se dissout et reprécipite sous la forme Si3N4β [nitrure de silicium β]. Cette transformation alpha-β s'accompagne d'un allongement des grains [...]

OBS

Le mot «alpha» doit être remplacé par la lettre grecque correspondante.

Key term(s)
  • nitrure de silicium bêta

Spanish

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