Low thermal conductivity lanthanum zirconate nanofibrous membranes for thermal insulation

Lanthanum zirconate (LZO) has high-temperature advantages including high melting point, low thermal conductivity and structure stability, which the potential to be used in insulation field. However, mechanical properties of LZO porous ceramics have limited further applications. In this work, nanofibrous membranes were prepared by electrospinning, preparation parameters PVP content, spinning voltage, feeding rate, received distance heating process investigated optimize microstructure membranes. The with grain size 34.5 nm displayed good morphology after calcining at 1000°C. fibrous had a very 0.0716 W/(m·K) room temperature, showing excellent insulating performance. This work indicates that are promising candidate materials for application. article is protected copyright. All rights reserved