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BETA SILICON NITRIDE [2 records]
Record 1 - internal organization data 1989-07-15
Record 1, English
Record 1, Subject field(s)
- Industrial Ceramics
Record 1, Main entry term, English
- beta sialon
1, record 1, English, beta%20sialon
correct, see observation
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
The sialons consist essentially of silicon nitride with some of the silicon and nitrogen atoms substituted by aluminium and oxygen... There are... two basic types : 1) low levels of substitution yield materials with an expanded beta-phase-beta-and an intergranular glassy phase and 2) high levels of substitution yield beta grains and a semi-continuous phase of yttium aluminium garnett(YAG). 1, record 1, English, - beta%20sialon
Record number: 1, Textual support number: 2 OBS
Beta sialon: the word "beta" must be followed by the mathematical sign for prime (’). 2, record 1, English, - beta%20sialon
Record 1, French
Record 1, Domaine(s)
- Céramiques industrielles
Record 1, Main entry term, French
- sialon bêta
1, record 1, French, sialon%20b%C3%AAta
correct, see observation, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La micrographie (...) illustre (...) l'existence d'un film vitreux (...) entre la phase intragranulaire (grenat d'yttrium) et les grains de sialon bêta' (...). 1, record 1, French, - sialon%20b%C3%AAta
Record number: 1, Textual support number: 1 OBS
Sialon bêta : le mot bêta doit être suivi du signe mathématique prime ('). 2, record 1, French, - sialon%20b%C3%AAta
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1988-12-15
Record 2, English
Record 2, Subject field(s)
- Powder Metallurgy
- Industrial Ceramics
Record 2, Main entry term, English
- alpha silicon nitride
1, record 2, English, alpha%20silicon%20nitride
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
Silicon nitride [exists in] two crystal structures : alpha(1400°C) and beta(1400-1800°C), both hexagonal. 2, record 2, English, - alpha%20silicon%20nitride
Record 2, French
Record 2, Domaine(s)
- Métallurgie des poudres
- Céramiques industrielles
Record 2, Main entry term, French
- nitrure de silicium alpha
1, record 2, French, nitrure%20de%20silicium%20alpha
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
Nitrures de silicium. Le frittage sous charge ou naturel de Si3N4 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 Si3N4 [bêta] [nitrure de silicium bêta]. Cette transformation alpha-bêta s'accompagne d'un allongement des grains (...) 2, record 2, French, - nitrure%20de%20silicium%20alpha
Record 2, Spanish
Record 2, Textual support, Spanish
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