Thermal conductivity of silica nanoparticle powder: Measurement and theoretical analysis Congliang Huang, Zizhen Lin, Yanhui Feng, Xinxin Zhang and Ge Wang Eur. Phys. J. Plus, 130 12 (2015) 239 Published online: 04 December 2015 DOI: 10.1140/epjp/i2015-15239-5