Effect of High Temperature Treatment on Tensile Strength and Structure of Basalt Fiber

被引：0
|
作者：
Miao, Shitan [1 ]
Liu, Jiaqi [1 ,2 ]
Guo, Ling [1 ]
Liu, Zhong [1 ]
Ding, Baoming [3 ]
Zhang, Lei [2 ]
机构：
[1] Hebei Key Laboratory of Green Development of Rock and Mineral Materials, Institute of Basalt Fiber Materials, School of Gem and Materials, Hebei GEO University, Shijiazhuang,050031, China
[2] Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing,100029, China
[3] School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing,100083, China
来源：
Cailiao Daobao/Materials Reports | 2024年 / 38卷 / 11期
关键词：
After-heat treatment - Air atmosphere - Basalt fiber - Effect of heat treatments - Heat treatment temperature - High temperature treatments - Shandong province - Strength surface - Surface crystallization - Surface microstructures;
D O I：
10.11896/cldb.22090168
中图分类号：
学科分类号：
摘要：
In this work, continuous basalt fibers were prepared from basalt in Shandong Province. Basalt fibers were heat treated at 200-900 ℃ under air atmosphere. The effects of heat treatment temperature on tensile strength, surface morphology, microstructure and crystallization beha-vior of basalt fibers were studied by various modern analysis and testing methods. The results showed that the tensile strength of the fibers decreased linearly with the increase of heat treatment temperature. Defects on the surface that distribute along the axial cracks increased in number and severity. The fiber structure gradually decomposed and the degree of disorder of internal units increased. After heat treatment at 800 ℃, the main crystallization phases were augite phase and magnetite phase. Hematite phase occurs after heat treatment at 900 ℃. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
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