Boron doped rare earth metal oxide compound

Patent metadata

Field	Value
Publication number	US-2018079648-A1
Application number	US-201615267517-A
Country	US
Kind code	A1
Filing date	Sep 16, 2016
Priority date	Sep 16, 2016
Publication date	Mar 22, 2018
Grant date	—

Abstract

A compound is generally provided that has the formula: Ln 3-x B x M 5-y B y O 12 , where Ln comprises Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or a mixture thereof; x is 0 to about 1.5; M comprises Ga, In, Al, Fe, or a combination thereof; y is 0 to about 2.5; and x+y is greater than 0. A composition is also provided that includes a silicon-containing material (e.g., silicon metal and/or a silicide) and the boron-doped refractory compound having the formula described above, such as about 0.001% to about 85% by volume of the boron-doped refractory compound.

First claim

1 .- 5 . (canceled)

6 . A compound having the formula:
Ln 3-x B x M 5-y B y O 12 where Ln comprises Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or a mixture thereof; x is 0; M comprises Ga, In, Al, Fe, or a combination thereof; y is 0 to about 2.5; and x+y is greater than 0.

7 . The compound as in claim 6 , wherein y is about 0.01 to about 2.

8 . The compound as in claim 6 , wherein y is about 0.01 to about 1.

9 . The compound as in claim 6 , wherein y is about 0.01 to about 0.5.

10 . The compound as in claim 6 , wherein y is about 0.01 to about 0.5.

11 .- 14 . (canceled)

15 . A compound having the formula:
Ln 3-x B x M 5-y B y O 12 where Ln comprises Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or a mixture thereof; x is 0 to about 1.5; y is 0 to about 2.5; and x+y is greater than 0, wherein M comprises In.

16 . (canceled)

17 . A compound having the formula:
Ln 3-x B x M 5-y B y O 12 where Ln comprises Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or a mixture thereof; x is 0 to about 1.5; y is 0 to about 2.5; and x+y is greater than 0, wherein M comprises Fe.

18 . A composition, comprising: silicon metal and the compound having the formula:
Ln 3-x B x M 5-y B y O 12 where Ln comprises Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or a mixture thereof; x is 0 to about 1.5; M comprises Ga, In, Al, Fe, or a combination thereof; y is 0 to about 2.5; and x+y is greater than 0.

19 . A composition, comprising: a silicide and the compound having the formula:
Ln 3-x B x M 5-y B y O 12 where Ln comprises Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, or a mixture thereof; x is 0 to about 1.5; M comprises Ga, In, Al, Fe, or a combination thereof; y is 0 to about 2.5; and x+y is greater than 0.

20 . The composition as in claim 19 , wherein the silicide comprises a rare earth silicide, a molybdenum silicide, a rhenium silicide, or mixtures thereof.

Assignees

• Gen Electric

Inventors

• Kirby Glen Harold
• Wan Julin

Classifications

• C01B35/128 Primary

  containing plural metal or metal and ammonium · CPC title

• C04B2235/428

  Silicon · CPC title

• C04B35/62222

  obtaining ceramic coatings (coating of mortars, concrete, artificial or natural stone or ceramics C04B41/45; laminated ceramic products B32B18/00; coating of glass C03C17/00, applying ceramic coatings on silicon for semi-conductor purposes H10W; coating metallic materials C23) · CPC title

• C04B35/50

  based on rare-earth compounds {(non-oxide rare earth compounds C04B35/5156)} · CPC title

• C04B2235/3224

  Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide · CPC title