Porous metal coatings using shockwave induced spraying
US11519075B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 5, 2017 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Apr 6, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C30/005
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A new spray process allows for deposition below a critical velocity limit of cold spray, while providing adhesion. Post deposition heat treatment has shown excellent coating strength. A wide variety of materials can be deposited. The spray process is based on ShockWave Induced Spraying (SWIS) but with much slower spray jet projection velocities. High porosity, pore size control, and porosity control are demonstrated to be controllable. Preheating of feedstock and uniform temperature of the SWIS delivery allow for the deposition below critical velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.