Material including boron suboxide and method of forming same

Patent metadata

Field	Value
Publication number	US-11066331-B2
Application number	US-201916396582-A
Country	US
Kind code	B2
Filing date	Apr 26, 2019
Priority date	Apr 27, 2018
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A material including a body including B6OX can include lattice constant c of at most 12.318. X can be at least 0.85 and at most 1. In a particular embodiment, 0.90≤X≤1. In another particular embodiment, lattice constant a can be at least 5.383 and lattice constant c can be at most 12.318. In another particular embodiment, the body can consist essentially of B6OX.

First claim

What is claimed is:

1. A material, having a body comprising B 6 O x , wherein the body has a thickness of at least 2 mm; and wherein the B 6 O x comprises lattice constant a and lattice constant c, wherein A represents a value of constant a, and C represents a value of constant c, wherein C is at most 12.318, wherein A is at least 5.386.

2. The material of claim 1 , wherein
X=(Xa+Xc)/2, wherein Xa=(A−5.26)/0.1347, Xc=(C−12.410)/(−0.10435); and
X is at most 1.2.

3. The material of claim 2 , wherein Xc is at least 0.85 and at most 1.1.

4. The material of claim 2 , wherein Xa is at least 0.85 and at most 1.2.

5. The material of claim 2 , wherein X is at least 0.91, and at most 1.1.

6. The material of claim 5 , wherein X is at least 0.95.

7. The material of claim 1 , wherein the A is at least 5.396.

8. The material of claim 1 , wherein the body comprises at most 10 vol % of an amorphous phase for a total volume of the body.

9. The material of claim 1 , wherein the body comprises:
a content of a compound of at most 5 wt % for a total weight of the body, wherein the compound includes an element other than boron and other than oxygen; and
a density of at least 90% of theoretical density.

10. A material, having a body comprising B 6 O x ,
wherein:
X=(Xa+Xc)/2, wherein Xa=(A−5.26)/0.1347, Xc=(C−12.410)/(−0.10435), A represents a value of lattice constant a, wherein A is at least 5.396, and C represents a value of lattice constant c; and
0.90≤X≤1.1; and

wherein the body comprises a width of at least 10.0 cm.

11. The material of claim 10 , wherein C is at most 12.318.

12. The material of claim 10 , wherein X is at least 0.95.

13. The material of claim 10 , wherein each of Xa and Xc is at least 0.90.

14. The material of claim 10 , wherein the body comprises a thickness of at least 2 mm.

15. The material of claim 10 , wherein the body comprises a volume of at least 108 cm 3 .

16. The material of claim 10 , wherein the body comprises an average V 50 ballistic limit (V 50 ballistic limit/thickness of the body) of at least 78.5 m/s·mm and at most 110.5 m/s·mm.

17. An armor component, comprising a body including the material of claim 10 .

18. The material of claim 10 , wherein the body comprises at least 90 vol % B 6 O x for a total volume of the body.

19. The material of claim 10 , wherein the body comprises a hardness of a Knoop hardness at 100 g of at least 2700 kg/mm 2 .

20. The material of claim 10 , wherein Xc is at least 0.96.

Assignees

• Saint Gobain Ceramics

Inventors

• Lacourse Brian C

Classifications

• C04B35/01 Primary

  based on oxide ceramics · CPC title

• C04B2235/421

  Boron · CPC title

• C01B35/1027

  Oxides · CPC title

• C04B2235/72

  Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina ceramics · CPC title

• C04B2235/96

  Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance · CPC title