Novel hydrothermal synthesis method for tobermorite fibers and investigation on their thermal stability
Novel hydrothermal synthesis method for tobermorite fibers and investigation on their thermal stability
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DOI：
10.1016/s0025-5408(02)00854-1
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发表时间：
2002-09
影响因子：
5.4
通讯作者：
Xiang Huang;D. Jiang;S. Tan
中科院分区：
文献类型：
--
作者：
Xiang Huang;D. Jiang;S. Tan
以Ca(II)-EDTA络合物为前驱体，在200℃、2 Mpa、3~10h的水热反应条件下，成功地合成了托贝莫来石纤维。X-射线衍射图、热重-差热分析和扫描电子显微镜观察表明，产物为针状托贝莫来石纤维，其直径、长度和长径比分别在0.10~10、40~100和20~80μm之间。纤维在热处理过程中可保持高达1150°C的形状。
Tobermorite fibers have been successfully synthesized by hydrothermal reaction at 200°C under the pressure of 2MPa after 3–10h using a Ca(II)–EDTA complex precursor. XRD patterns, TG-DTA analysis, and SEM observations show that the products are needle-like tobermorite fibers, which have diameter, length, and aspect ratio in the range of 0.1–10, 40–100, and 20–80μm, respectively. The fibers can maintain their shapes up to 1150°C during the heat treatment.