Hydrothermal Synthesis of Hollow Al₂O₃ Microfibers for Thermal Insulation Materials

DOI PDF Web Site 参考文献36件

この論文をさがす

抄録

<jats:title>Abstract</jats:title> <jats:p>Hollow Al2O3 microfibers were successfully synthesized via a novel hydrothermal method using cotton fiber as a template followed by annealing. The hollow Al2O3 microfibers annealed at 1200 °C for 5 h contained no impurity phases, and the Al2O3 composing the microfibers was confirmed to exhibit the trigonal unit cell of α-Al2O3 with R$\bar{3}$c space-group symmetry. The synthesized hollow Al2O3 microfibers were 5–15 µm in diameter, with walls 500–800 nm thick; the walls were composed of Al2O3 primary particles 100–200 nm in diameter. The specific heat capacity of the synthesized hollow Al2O3 microfibers was approximately the same as that reported in the literature for α-Al2O3. In addition, the annealing temperature of the hollow Al2O3 microfibers was studied to elucidate their mechanism of formation. The chemical and physical properties of the synthesized hollow Al2O3 microfibers indicate that they can be used as a thermal insulation material.</jats:p>

収録刊行物

参考文献 (36)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ