Cathodic Arc Synthesis of Sand-Erosion Resistant, Boride Coatings for Titanium Alloy Compressor Impeller Blades

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00421-05-C-0014
Agency Tracking Number: N043-261-0102
Amount: $79,959.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2004
Solicitation Topic Code: N04-261
Solicitation Number: 2004.3
Small Business Information
104 Centre Ct., Radford, VA, 24141
DUNS: 101711786
HUBZone Owned: Y
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 C. Christopher Klepper
 PI/Sr. Scientist
 (540) 639-4019
Business Contact
 Robert Hazelton
Title: Secretary/Treasurer
Phone: (540) 639-4019
Research Institution
In environments where the atmosphere can contain a high concentration of sand, the erosion of jet engine turbine blades becomes a dominant mechanism for reduced aircraft engine lifetime. NAVAIR is seeking a coating solution that will dramatically decrease this sand erosion wear mechanism, especially for titanium alloy impeller blades in the compressor side of its aircraft engines. HY-Tech is offering to apply its surface treatment technology, which is uniquely able to apply a super-high hardness (3 times that of sand), yet low modulus (i.e. elastic, providing good impact resistance), boron-rich thin film coating, with excellent adhesion to titanium alloys (as well as steels). The adhesion is achieved without the need for a bond coating, by using the energetic ions of boron involved in this process to form a reacted diffusion layer. Boron forms strongly bonded compounds with titanium; the compounds themselves are also hard and erosion resistant. The Phase I project will seek to demonstrate this solution by means of sand erosion testing of boron-coated flat-samples at a qualified facility and to determine the relationship of sand erosion performance to the depth and quality of the reacted layer.

* information listed above is at the time of submission.

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