Structural panel having boron reinforce face sheets and associated fabrication method
US5955207A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Nov 24, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12806
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The face sheet is formed of a titanium alloy which includes boron that can be superplastically formed and diffusion bonded to form a structural panel. The structural panel generally includes a pair of face sheets that are disposed on and bonded to opposite sides of a metallic core. By forming at least one of the face sheets of a titanium alloy which includes boron, such as between about 0.2 weight percent and about 2 weight percent of boron, the resulting structural panel is stiffened without any corresponding increase in weight relative to structural panels formed of conventional titanium alloys. Preferably, powdered titanium diboride (TiB.sub.2) is added to a titanium alloy charge that is subsequently formed into a boron reinforced titanium alloy sheet. During the forming process, the TiB.sub.2 reacts to produce TiB reinforcements that are scattered throughout the metal matrix to increase the modulus and correspondingly stiffen the resulting face sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.