Premium
Synthesis and Thermal Conductivities of the Biomorphic Al 2 O 3 Fibers Derived from Silk Template
Author(s) -
Wang Tianchi,
Kong Song,
Jia Yang,
Chang Lijing,
Wong Chingping,
Xiong Dangsheng
Publication year - 2012
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2012.02841.x
Subject(s) - materials science , silk , composite material , thermal conductivity , infrared , microstructure , electrical resistivity and conductivity , thermal , fiber , absorption (acoustics) , chemical engineering , optics , physics , meteorology , electrical engineering , engineering
Silk was used as the template to prepare biomorphic Al 2 O 3 fibers. Silk fibers were first immersed into an AlCl 3 solution and then sintered at high temperatures to produce the final Al 2 O 3 fibers. Their microstructures, phases, synthesis process, infrared absorption spectra, and thermal conductivity were analyzed. The results show that these Al 2 O 3 fibers retained the morphologies of silk. Different from the traditional Al 2 O 3 fibers, these biomorphic fibers exhibit hollow and possess a good ability of absorbing infrared got from the silk, so that they possessed better heat‐insulating property than the traditional Al 2 O 3 fibers.