Reduced Cost Fabrication of Optical Sapphire Hyper-hemispheres for Submarine Masts

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00178-18-C-8019
Agency Tracking Number: N161-036-0042
Amount: $957,502.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N161-036
Solicitation Number: 2016.1
Solicitation Year: 2016
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-02-23
Award End Date (Contract End Date): 2020-02-22
Small Business Information
120 Corliss Street, Providence, RI, 02904
DUNS: 001190248
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Theodore Turnquist
 (401) 331-3717
Business Contact
 David Lydon
Phone: (401) 331-3717
Research Institution
The objective of the proposal is to reduce the cost of fabrication of sapphire optical hyper-hemispheres for submarine masts. Due to the nature of sapphire, deriving complex geometries from grown boules using current conventional fabrication techniques is one of the major contributors to cost. Removing excess material requires long diamond tool grinding cycles. New advances in ultrasonic technology have been incorporated by machine tool manufacturers to couple this technology with conventional diamond grinding techniques in order to accomplish orders of magnitude increases in stock removal rates with no impact on surface finish and subsurface damage.

* Information listed above is at the time of submission. *

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