CX-100814 Categorical Exclusion Determination

Polydopamine/PTFE Composite Coating for Large-Scale journal Bearings in Next Generation Electric Machines Award Number: DE-EE0007874 CX(s) Applied: A9, B3.6. B3.15 Advanced Manufacturing Office Date: 2/15/2017 Location(s): AR Office(s): Golden ...

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February 21, 2017
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Polydopamine/PTFE Composite Coating for Large-Scale journal Bearings in Next Generation Electric Machines
Award Number: DE-EE0007874
CX(s) Applied: A9, B3.6, B3.15
Advanced Manufacturing Office
Date: 2/15/2017
Location(s): AR
Office(s): Golden Field Office

The U.S. Department of Energy (DOE) is proposing to provide funding to SurfTec, LLC to develop and scale a coating technology to a readiness level for industry adoption.

The proposed polydopamine/polytetrafluoroethylene nanoparticle composite coating would replace traditional journal bearing liners that use lead and bismuth with a high-performance, sustainable alternative. The proposed project activities would include:
1. Lab-scale demonstration and optimization of coating performance in lubrication regimes relevant to hydrodynamic journal bearing operation and validation at a third-party test site.
2. Scale-up of coating deposition techniques to coat large-scale journal bearings for megawatt-class megavolt electric motors and generators and testing at partner motor and generator manufacturer.
3. Inclusion of coated journal bearings in a full-scale prototype system for demonstration and evaluation. Prototype system would be used as a test bed for performance validation.