SOURCES SOUGHT
66 -- 10 B Coatings on Thin Ti Foils
- Notice Date
- 6/16/2011
- Notice Type
- Sources Sought
- NAICS
- 331491
— Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
- Contracting Office
- Department of Energy, National Security Technologies LLC (DOE Contractor), National Security Technologies LLC, PO Box 98521, Las Vegas, Nevada, 89193
- ZIP Code
- 89193
- Solicitation Number
- 229382-SH-11
- Archive Date
- 7/7/2011
- Point of Contact
- Sheppy, Phone: 702-295-3060, Alta R McDowell, Phone: 702.295.5029
- E-Mail Address
-
herskosd@nv.doe.gov, mcdowear@nv.doe.gov
(herskosd@nv.doe.gov, mcdowear@nv.doe.gov)
- Small Business Set-Aside
- Total Small Business
- Description
- Scope of Work For an e-beam coating process, fabricate e-beam targets with enriched boron-10 ( ≥ 96% 10 B) where the crucibles are made of tungsten and use the new target to coat both sides of a of a set Ti foils with the dimensions 35 cm x 5 cm x 50 μ m thickness. The coating area would be about 30 cm x 5 cm. First, coat two foils with a 500 nm thin film of 10 B. Next, coat two foils with 1.1 μ m thin film of 10 B. Additionally, in-situ, coat small bend-test samples (possibly at the end of the long foil strips) and a glass witness for resistance measurements. Maintain records about the 10 B target, test foils, and coating production. Design and fabricate jigs & foil holders to adapt the foils to the existing e-beam chamber as needed. After the experiment ends, ship the coated foils, bend test foils, and glass witness to NSTec. If any of the 10 B slug remains in the target then ship the left-over target to NSTec. Send NSTec report with a description of the target's fabrication steps and foil coating properties. Preconditions / Recommendations •1. Design and fabricate jigs to adapt foils to the e-beam chamber. •2. Fabricate two e-beam targets with enriched boron-10 ( ≥ 96% 10 B) in a tungsten crucible. One target per run. •3. Set-up •3.1. Lining chamber •3.2. Calibration •3.3. Coat chamber with boron prior to foil coatings •4. Titanium foils •4.1. Vendor will purchase 6 foils. The four best foils will be used for the coatings and the remaining two will be backup foils. •4.2. Quality guidance for best foil selection •4.2.1. The foils should lay flat without dimples or wrinkles. •4.2.2. Foils should be continuous - without holes. •4.2.3. Foils should have minimal cutting ripples at the edge. •4.2.4. Contact Mike Berninger (505-662-2032) if four foils do not meet these criteria. •5. Pre-cleaning •5.1. Prior to coating clean foils with trichloroethylene and acetone. Add a new layer of titanium with an ION assist <.05 μm thickness •5.2. Limit material exposure to oxygen. •5.3. Recommendations for dilute hydrofluoric acid (HF) dip. •5.3.1. 2 oz HF per gallon of de-ionized water for ≤ 1 mi n ( Surfaces should be shiny - not "buttery" dull or pitted ). •5.3.2. H 2 0 rinse and blow dry with dry pure N or Ar. •6. Pre-post coating measurement: •6.1. Measure and record the mass of the titanium foils before and after coating. For the after coating mass measurement, measure the foils after they have been cut and the bend-test piece removed. •6.2. Coat a glass slide witness for resistivity measurements. Deliverables Vendor will supply the foils. Vendor will buy the boron, keep track of quantity used and supply NSTec with any leftover boron material. •1. Coat both sides of each foil with enriched Boron-10 ( ≥ 96% 10 B) as specified in table FOIL LIST QTY MATERIAL Nominal FOIL SIZE REQUIREMENT COATING THK 1 Titanium (Ti) 5cm x 35cm x 50μm Etch with HF (see sec. 2.3) 1.1 μm 1 Titanium (Ti) 5cm x 35cm x 50μm 1.1 μm 1 Titanium (Ti) 5cm x 2cm x 50μm Etch with HF (see sec. 2.2) Bend Test (see sec 3.5) Can be cut from the end of the long foil strip 1.1 μm 1 Titanium (Ti) 5cm x 2cm x 50μm Bend Test (see sec 3.5) Can be cut from the end of the long foil strip 1.1μm 1 Titanium (Ti) 5cm x 30cm x 50μm Etch with HF (see sec. 2.3) 0.5 μm 1 Titanium (Ti) 5cm x 30cm x 50μm 0.5 μm 1 Titanium (Ti) 5cm x 2cm x 50μm Etch with HF (see sec. 2.2) Bend Test (see sec 3.5) Can be cut from the end of the long foil strip 0.5 μm 1 Titanium (Ti) 5cm x 2cm x 50μm Bend Test (see sec 3.5) Can be cut from the end of the long foil strip 0.5 μm •1.1. Material thick tolerances width +/-.5cm length +/- 3cm thickness +/- 1 μm •1.2. Substrate temperature - as hot as possible: +300 C (+350 C if possible) •2. Quality control report documenting the following: •2.1. Report any impurities in the coatings. •2.2. Measure coating thickness with profilometer. •2.3. Observe surface characteristics with a microscope (1000x or better) and, if possible, record surface features with camera. •2.4. Perform a room temperature bend ductility test (per ASTM E290-09). The ASTM E290-09 test is a best effort basis and does not establish the requirements for the success or failure of the coatings. •2.4.1. ASTM E290-09 Section 3.75 on a round over.0625 plate •2.4.2. ASTM E290-09 Section 3.8 on a.0625 gage pin •2.4.3. Check for cracks with imaging microscope. •3. Material processing, handling and shipping. •3.1. Keep foils clean, and handle carefully. •3.2. No contamination of other metal impurities during coating process. •3.3. Tag each foil packaging with process requirement as an identifier. •3.4. Save unused targets in a container free from contamination. Supplemental Information Coating Electron beam deposition from ≥ 96% 10 B targets (pellets, or other appropriate source). Base pressure 10 -5 to 10 -6 torr. Pure Argon gas 99.999% 10 -3 torr to 10 -4 torr. Deposition rate, ~5 Å / s or lower (varied with source voltage?). Post deposition cool down In situ deposition anneal at substrate temp for about 5 hours. Then cool to room temperature.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/DOE/BNC/BV/229382-SH-11/listing.html)
- Place of Performance
- Address: Los Alamos Facility, Los Alamos, New Mexico, 87544, United States
- Zip Code: 87544
- Zip Code: 87544
- Record
- SN02474840-W 20110618/110616234813-e61a60170c510695ece68578fd0e1058 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
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