CAJ | 학술논문

系统研究了含钴聚碳硅烷交联丝的氧含量对所成含钴碳化硅(Co-SiC)纤维结构与性能的影响。研究结果显示,较之交联丝Co-PCS-air, Co-PCS-O2的氧含量较高,陶瓷产率较高,所成纤维的SiCxOy相含量较高、β-SiC和CoSi晶粒的增长速度较快,晶粒的尺寸较大,达到最大力学性能的烧结温度较低,电阻率也较低。该纤维电阻率在100~103Ω?cm之间可调,且具有一定的磁性,有望用作吸波纤维。
계통연구료함고취탄규완교련사적양함량대소성함고탄화규(Co-SiC)섬유결구여성능적영향。연구결과현시,교지교련사Co-PCS-air, Co-PCS-O2적양함량교고,도자산솔교고,소성섬유적SiCxOy상함량교고、β-SiC화CoSi정립적증장속도교쾌,정립적척촌교대,체도최대역학성능적소결온도교저,전조솔야교저。해섬유전조솔재100~103Ω?cm지간가조,차구유일정적자성,유망용작흡파섬유。
In this work,it was systematically studied that how oxygen content of cured cobalt-containing polycar-bosilance (PCS)fibers influences the structure and properties of cobalt-containing silicon carbide(Co-SiC)fi-bers.Compared to cured Co-PCS-air fibers,Co-PCS-O2 fibers have a higher oxygen content and higher ceramic yield.For Co-PCS-O2 fibers derived from cured Co-PCS-O2 ,lower pyrolysis temperature was required to reach maximum mechanical properties.And higher SiCx Oy content,higher growing speed and final sizes ofβ-SiC and CoSi grains and lower electrical conductivity were observed.Co-PCS-O2 fibers have a electrical conductivity con-trollable between 100- 103Ω??cm and were magnetic to some degree,enabling this kind of fibers to have the po-tential to be used as wave-absorbing materials.