SATPC0030368 Tab 04 4 SOW_Redacted.pdf

Statement of Work

1. Si / YBS2 (5 mil / 10 mil)

a. 2.5” x 0.3” x 0.05” Hexoloy SiC – 50 pieces (mixed mode testing)

b. 1” dia Hexoloy SiC – 100 pieces (CMAS/Erosion testing & pull testing)

c. 1’’ x ½’’ Hexoloy SiC – 46 pieces (oxidation at various P(H2O))

d. 1” x ½” MI CMC – 50 pieces (FOD testing)

e. 3’’ x 3’’ MI CMC – 1 piece (QARE exposure)

2. Si / YBS2 Mod #1 (M5Y) (5 mil / 10 mil)

a. 1” dia Hexoloy SiC – 50 pieces

b. 1” x ½” MI CMC – 10 pieces

c. 6’’ dogbone MI CMC tensile samples; coat 4 sides as depicted in figure on next page – 6 pieces (retained strength QARE)

d. 3’’ x 3’’ MI CMC – 2 pieces (QARE exposure)

e. 3’’ x 1’’ MI CMC – 3 pieces (QARE exposure)

f. 0.5’’ dia Hexoloy SiC – 3 pieces (laser flash)

3. Si / YBS2 Mod #1 (5 mil / 10 mil)

a. 1’’ x ½’’ Hexoloy SiC – 20 pieces

4. Si / YBS2 Mod #2 (5 mil / 10 mil)

a. 1’’ x ½’’ Hexoloy SiC – 10 pieces

5. Si / YBS2 Mod #3 (5 mil / 10 mil)

a. 1’’ x ½’’ Hexoloy SiC – 10 pieces

6. YBS2

a. 10 mil thick on 1’’ dia graphite substrate – 4 pieces (emissivity)

b. 0.12’’ thick on 4’’ x 6’’ graphite substrate – 2 pieces (thermal and mechanical characterization)

7. YBS2 Mod #1 (M5Y)

a. 0.12’’ thick on 4’’ x 6’’ graphite substrate – 2 pieces (thermal and mechanical

b. 10 mil thick on 1’’ dia graphite substrate – 4 pieces (emissivity)

8. Si

a. 0.12’’ thick on 4’’ x 6’’ graphite substrate – 2 pieces (thermal and mechanical

b. 5 mil thick on 0.5’’ dia Hexoloy SiC – 3 pieces (laser flash)

9. Si Powder

a. 30 kg

1. NASA shall provide SiC coupons and EBC powders

- YBS2 = Yb2Si2O7

- Mod YBS2 = Modified Yb2Si2O7 sprayed in the past

2. Curtiss Wright shall purchase 30 kg Si powder from HAi and add the cost in the quote

3. Curtiss Wright shall use the same spray parameters used in the previous NASA EBC fabri cation.

4. Hexoloy SiC coupons require cubic boron nitride (CBN) grit blasting.

5. MI CMC coupons require SiC grit blasting