SATPC0039425 Tab 04 4 SOW.pdf

STATEMENT OF WORK TEMPLATE

1.0 Introduction/Background: NASA Langley Research Center requires specialized ceramic coating deposition services to support advanced materials research programs involving high-performance ceramic materials evaluation. The effort addresses the critical need for consistent, high-quality ceramic coatings on test substrates that will undergo extreme operational testing conditions. This requirement supports NASA's ongoing research into advanced ceramic materials performance, where specific coating compositions (boron carbide, silicon carbide, and silicon nitride) are essential for comparative analysis and performance validation. The work is necessary to provide uniformly coated test specimens that will enable accurate materials characterization and performance assessment under controlled laboratory conditions.

2.0 Scope of Work: This Statement of Work covers the thermal spray deposition of three distinct ceramic coating compositions onto NASA-furnished aluminum and titanium substrates. The work encompasses substrate preparation, robot programming, preproduction experiments, production coating operations, and quality assurance processes to ensure coating specifications are met.

3.0 Objectives: The overall objective is to provide NASA with consistently applied, high-quality ceramic coatings on 360 test substrates, enabling comprehensive materials research through controlled coating thickness and composition across multiple substrate materials.

4.0 Description of the Work/Contractor Tasks: The overall objective is to provide NASA with consistently applied, high-quality ceramic coatings that meet thickness and performance specifications.

Task 1: Substrate Preparation

• Perform chemical cleaning of all NASA-furnished substrates

• Conduct grit blast surface preparation to ensure proper coating adhesion

• Design and fabricate specialized fixturing for consistent substrate positioning

• Verify substrate dimensional requirements prior to coating

Task 2: Process Development and Programming

• Develop robot programming protocols for automated coating deposition and

• Conduct preproduction experiments to optimize coating parameters

• Establish process controls for thickness uniformity and coating quality

• Document optimized coating procedures for each ceramic composition

Task 3: Ceramic Coating Deposition

• Apply boron carbide coatings (~5 mils thick) to 60 aluminum and 60 titanium substrates

• Apply silicon carbide coatings (~2 mils thick) to 60 aluminum and 60 titanium substrates

• Apply silicon nitride coatings (~5 mils thick) to 60 aluminum and 60 titanium substrates

• Maintain coating thickness tolerances and uniformity standards Task 4: Quality Control and Verification

• Conduct coating thickness measurements and verification

• Perform visual inspection for coating defects and uniformity

• Document coating parameters and process controls for each batch

• Provide coating certification and test data

Review and Approval Points:

• Pre-coating inspection of substrate preparation

• Final visual inspection

5.0 Deliverables:

5.1 Coated Test Substrates

• 120 substrates with boron carbide coating (60 aluminum, 60 titanium)

• 120 substrates with silicon carbide coating (60 aluminum, 60 titanium)

• 120 substrates with silicon nitride coating (60 aluminum, 60 titanium)

• Total: 360 coated substrates

• Delivery: 10 working days after receipt of substrates

5.2 Technical Documentation

• Coating process procedures documentation

• Delivery: With coated substrates

Other Considerations:

Applicable Documents/Background:

• NASA furnished substrate specifications

• NTST coating process specifications

Milestones: N/A

Government-furnished property

• 360 test specimen substrates (180 Al6061 and 180 Ti-6Al-4V rounds, 1-inch diameter, ~0.25-inch thickness)

Government-furnished information

• Substrate material specifications

• Dimensional requirements and tolerances

• Specific coating thickness requirements

• Edge radius specifications for drum components