采用碳热还原法和不同的添加剂在温度为970~1120℃、压力为0.1MPa的N2条件下,在石墨电阻炉内首次制备出NbCx(x=0.98)-C三维网状纤维.三维网状纤维的直径为12~38m,网的环长为0.22~2.2μm,网孔径为70~701μm.本文详细研究了制备的工艺条件及相应的网状纤维的形貌.
By the carbothermal method and different additives, NbCx(x=0.98)--C three-dimensional netted fibers were prepared in graphite resistance furnace with 0.1 MPa/N2 ambient atmosphere attemperatures of 1070 to 1670℃. The diameters of 3-D netted fibers are 12-38μm, the circumferences are 0.22-2.2mm, the hole diameters are 70-701μm. The proccesing conditions for fabricating NbCx-C 3-D netted fibers, and relative morphology of NbCx-C netted fibers were investigated indetail.
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