Composite materials having improved fracture toughness
US4939032A · kind A · utility
2Cited by
22References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1987 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Jun 25, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Composite materials having improved fracture toughness are formed by dispersing ductile inclusions in a less ductile matrix. The matrices may be formed from metals, such as high-strength aluminum alloys or ceramics. Bonding should be present between the inclusions and the matrix so that cracks in the composite material must pass through the inclusions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.