Effect of Aerogel Particle Concentration on Mechanical Behavior of Impregnated RTV 655 Compound Material for Aerospace Applications

Figure 6

Rupture load of RTV 655+PCSA compound specimens at 77 K impregnated with three particle size ranges: (a) = 300–425 μm, (b) = 180–300 μm, and (c) = 90–180 μm measured for three separate sample batches. A similar trend of reduction in the yield strength compared to room temperature measurements was observed. However, a considerable amount of stiffness of both neat RTV 655 and compound specimens was observed.

(a)

(b)

(c)