The charge for the cultivation of yttrium-aluminum garnet

 

(57) Abstract:

The charge for the cultivation of yttrium-aluminum garnet from the melt, including the oxides of yttrium, aluminum, ytterbium, and one of group IV elements (zirconium, hafnium, silicon), characterized in that it further comprises the oxides of rare earth elements from lanthanum to terbium) or their mixture in the following ratio, wt.%:

Yttrium oxide - 20,71 - 56,47

The ytterbium oxide is 0.5 - 30,0

Dioxide element of group IV - 0,02 - 0,2

The oxide of rare earth element or a mixture of 0.005 - 15

Alumina - Rest

 

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FIELD: triple chalcogenide monocrystals designed for using in quantum electronics and optronics.

SUBSTANCE: monocrystal has chemical formula LiGaTe2, three-dimensional tetragonal-symmetry group I42d, lattice parameters a = 6.338Å, c = 11,704Å, volume of elemental cell V = 470.1Å, coordination number Z = 16, density 4.689 g/cm3 and it is grown by Bridgeman-Stockbarger process at preliminary synthesis of compound of elemental components Li, Ga, Te. Monocrystal is suitable for converting laser infrared irradiation from wavelength no less than 520 nm up to wavelength 20 micrometers.

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3 cl, 2 dwg

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5 cl, 1 tbl, 2 dwg

FIELD: chemistry.

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23 cl, 3 ex, 2 dwg

FIELD: chemistry.

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1 ex, 2 dwg

FIELD: metallurgy, crystal growing.

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EFFECT: producing lattice for matrix detector all cells of which are filled with mono-crystal material.

3 cl, 3 ex, 1 dwg

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