1. © 2016 ATI. All Rights Reserved. ® Registered Trademark of ATI Properties Inc. R&D Department, Specialty Alloys & Components (SA&C) August 12, 2016

2. © ATI 2016. All Rights Reserved. 2 Products at SA&C Refractory and reactive alloys and components

3. © ATI 2016. All Rights Reserved. 3 Project Description Scope: Design, fabricate, and test apparatus that applies a uniform silicide coating to the inside surface of a niobium based alloy (C-103) thrust chamber and rocket nozzle. Design Requirements: Manipulate nozzles from 10 to 28 cm in length Uniform inside surface coatings free of drips and runs Simple, automated operation Potential Design Direction: Fill and drain method where a fixture holds and seals a nozzle partly filled with glaze, while a computer controlled stage rotates and tilts the fixture before draining.

4. © ATI 2016. All Rights Reserved. 4 Application Second Stage thruster formed from Niobium alloy with ceramic coating to withstand high heat flux Test firing, December 2015

5. © ATI 2016. All Rights Reserved. 5 Motivation Without coating With coating

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