The Internet Archive has digitized a microfilm copy of this work. It may be possible to borrow a copy for reading.
Mike H.B. Gray, Lev Kurbanyan, Frederick Milstein. "Constitutive Properties of Silicone-Impregnated Reusable Ceramic Ablator in Compression: Poisson's Ratios." Journal of Spacecraft and Rockets 46.4 (2009) 923-928