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GARNET

GARNET Struktur
CAS-Nr.
Englisch Name:
GARNET
Synonyma:
GARNET
CBNumber:
CB51441106
Summenformel:
Molgewicht:
0
MOL-Datei:
Mol file

GARNET Eigenschaften

Sicherheit

GARNET Chemische Eigenschaften,Einsatz,Produktion Methoden

Definition

garnet: Any of a group of silicateminerals that conform to the generalformula A3B2(SiO4)3. The elementsrepresenting A may include magnesium,calcium, manganese, andiron(II); those representing B mayinclude aluminium, iron(III),chromium, or titanium.

Industrielle Verwendung

Garnet is a general name for a group of mineralsvarying in color, hardness, toughness, and method of fracture, used for coating abrasivepaper and cloth, for bearing pivots in watches,for electronics, and the finer specimens forgemstones. Garnets are trisilicates of alumina,magnesia, calcia, ferrous oxide, manganeseoxide, or chromic oxide. The general formulais 3R″O·R2O3·3SiO2, in which R″is calcium,magnesium, iron, or manganese, and R″is aluminum,chromium, or iron.
Garnet-coated paper and cloth are preferred to quartz for the woodworking industries,because garnet is harder and gives sharper cuttingedges, but Al2O3 is often substituted forgarnet.
Synthetic garnets for electronic applicationare usually rare earth garnets with a rare earthmetal substituted for the calcium, and iron substitutedfor the aluminum and the silicon.Yttrium garnet, is thus Yt3Fe2(FeO4)3.Yt–Algarnets of 3-mm diameter are used for lasers.Gadolinium (Gd) garnet has been chosen formicrowave use. Gd–Ga garnet made from GdOand GaO is used for computer bubble memories.

GARNET Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


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  • GARNET
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