TY - JOUR TI - Effect of acid type and gelation pH on the structural properties of silica aerogels prepared by use of rice hull biosilica AU - KARAKUZU, B. AU - TEMEL, T.M. AU - YÜCEL, S. AU - TERZİOĞLU, P. AU - ELALMIŞ, Y. JO - Sigma Journal of Engineering and Natural Sciences PY - 2016 VL - 34 SP - 175 EP - 182 DO - ER -