TY - JOUR
T1 - Low thermal conductivity lanthanum zirconate nanofibrous membranes for thermal insulation
AU - Wang, Hengchang
AU - Xu, Jie
AU - Wei, Mingyue
AU - Meng, Xuanyu
AU - Lin, Lang
AU - Feng, Xiaoying
AU - Gao, Feng
N1 - Publisher Copyright:
© 2023 The Authors. International Journal of Ceramic Engineering & Science published by Wiley Periodicals LLC. on behalf of the American Ceramic Society.
PY - 2023/7
Y1 - 2023/7
N2 - Lanthanum zirconate (LZO) has high-temperature advantages, including a high melting point, low thermal conductivity, and high structure stability, which has the potential to be used in high-temperature thermal insulation field. However, low mechanical properties of LZO porous ceramics have limited further applications. In this work, LZO nanofibrous membranes were prepared by electrospinning, and the preparation parameters, including PVP content, spinning voltage, feeding rate, received distance, and the heating process, were investigated to optimize the microstructure of the nanofibrous membranes. The LZO nanofibrous membranes with a grain size of 34.5 nm displayed good morphology after calcining at 1000°C. The LZO fibrous membranes had a very low thermal conductivity of 0.0716 W/m·K at room temperature, showing excellent insulating performance. This work indicates that LZO nanofibrous membranes are promising candidate materials for thermal insulation applications.
AB - Lanthanum zirconate (LZO) has high-temperature advantages, including a high melting point, low thermal conductivity, and high structure stability, which has the potential to be used in high-temperature thermal insulation field. However, low mechanical properties of LZO porous ceramics have limited further applications. In this work, LZO nanofibrous membranes were prepared by electrospinning, and the preparation parameters, including PVP content, spinning voltage, feeding rate, received distance, and the heating process, were investigated to optimize the microstructure of the nanofibrous membranes. The LZO nanofibrous membranes with a grain size of 34.5 nm displayed good morphology after calcining at 1000°C. The LZO fibrous membranes had a very low thermal conductivity of 0.0716 W/m·K at room temperature, showing excellent insulating performance. This work indicates that LZO nanofibrous membranes are promising candidate materials for thermal insulation applications.
KW - electrospinning
KW - lanthanum zirconate
KW - nanofibrous membranes
KW - parameter investigation
KW - thermal insulation
UR - http://www.scopus.com/inward/record.url?scp=85164171392&partnerID=8YFLogxK
U2 - 10.1002/ces2.10181
DO - 10.1002/ces2.10181
M3 - 文章
AN - SCOPUS:85164171392
SN - 2578-3270
VL - 5
JO - International Journal of Ceramic Engineering and Science
JF - International Journal of Ceramic Engineering and Science
IS - 4
M1 - e10181
ER -