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

Figure 7

Effect of PCSA particle size and concentration on the stress-elongation behavior of the compound material at room temperature. At 25% IL (a) shows a modest deviation from elastomeric behavior in comparison to neat RTV 655. For 50% IL (b) the compound material shows sign of a stiff material while at 75% IL (c) characteristics of a stiff and strong and more brittle material become apparent. The effect of the particle sizes seems less significant compared to the IL.

(a)

(b)

(c)