欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
本文利用X射线小角散射（SAXS）研究碳纤维原丝预氧化过程中微孔的变化。计算出随着预氧化过程中牵伸比的加大，预氧化丝中微孔结构的变化。预氧化丝中的微孔大多是一些长条状微孔，并且取向趋向于纤维轴方向。碳纤维中的微孔对于其模量有着重大影响，因而对于碳纤维以及其原丝中微孔结构的研究有着重要的意义。
英文摘要：
In this paper, Small-angle X-ray scattering has been used to identify the micro- porosity of the pre-oxidized fibers in different conditions. Given different draw ratios, we use SAXS to find out the changes of the void structures in the pre-oxidized fibers. Microporosity in carbon fibers and pre-oxidized fibers consists primarily of needle-shaped voids whose long axes are oriented preferentially along the fiber axis. The microporosity is the major deciding factor in controlling the modulus of carbon fibers.
同期刊论文项目
同项目期刊论文
Single-Crystalline Dodecahedral and Octodecahedral ?-Fe2O3 Particles Synthesized by a Fluoride Anion
The evolution of crystalline structure in the preparation of PAN-based carbon fibers studied by whol
Investigation of the silicon concentration effect on anatase Si-doped TiO2 by first- principles calc
Real-time SAXS and ultraviolet-visible spectral studies on size and shape evolution of gold nanopart
Temperature-Induced Interfacial Change in Au@SiO2 Core-Shell Nanoparticles Detected by Extended X-ra
Structural change of Ni-Cu alloy nanowires with temperature studied by in situ X-ray absorption fine
Small-Angle X-Ray Scattering Studies of Carboxyl Functionalized SBA-15 Type Mesoporous Molecular Sie
Characterization of the nanopore structures of PAN-based carbon fiber precursors by small angle X-ra
Thermal expansion behavior study of Co nanowire array with in situ x-ray diffraction and x-ray absor
A furnace to 1200K for in situ heating x-ray diffraction, small angle x-ray scattering, and x-ray ab
Novel Micro- and Mesoporous Composite Molecular Sieve Assembled by Zeolite L Nanocrystal and Its Per
Synthesis and application of a novel mesoporous zeolite L in the catalyst for the HDS of FCC gasolin
位置：