| 石墨烯改性PDC-SiCNO陶瓷的制备及其介电性能 |
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| 引用本文： | 余煜玺,夏范森,黄奇凡.石墨烯改性PDC-SiCNO陶瓷的制备及其介电性能[J].材料工程,2019,47(3):8-14. |
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| 作者姓名： | 余煜玺 夏范森 黄奇凡 |
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| 作者单位： | 厦门大学 材料学院 材料科学与工程系 福建省特种先进材料重点实验室,福建 厦门,361005;厦门大学 材料学院 材料科学与工程系 福建省特种先进材料重点实验室,福建 厦门,361005;厦门大学 材料学院 材料科学与工程系 福建省特种先进材料重点实验室,福建 厦门,361005 |
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| 基金项目： | 国家自然科学基金;装备预研项目;反应堆燃料;材料重点实验室基金 |
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| 摘 要： | 以聚乙烯基硅氮烷(PVSZ)为原料,氧化石墨烯(GO)为碳源,无水乙醇(ETOH)为分散剂,制备石墨烯球增强SiCNO陶瓷(SiCNO-GO)。利用拉曼光谱(Raman)、电子自旋共振(EPR)和扫描电子显微镜(SEM)等表征手段,研究SiCNO-GO陶瓷结构对其介电性能的影响。结果表明:SiCNO-GO陶瓷的微球密度和粒径的大小与GO的含量有关;随着SiCNO-GO陶瓷中GO含量的增加,SiCNO-GO陶瓷的介电常数和介电损耗也随之增大,在GO含量为0.1%(质量分数)时达到最大值,而当GO质量分数为0.3%时,SiCNO-GO陶瓷的介电常数和介电损耗降低。
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| 关 键 词： | 聚合物先驱体陶瓷 石墨烯 电学性能 制备 |
Preparation of graphite modified PDC-SiCNO ceramics and its dielectric properties |
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| YU Yu-xi,XIA Fan-sen,HUANG Qi-fan.Preparation of graphite modified PDC-SiCNO ceramics and its dielectric properties[J].Journal of Materials Engineering,2019,47(3):8-14. |
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| Authors: | YU Yu-xi XIA Fan-sen HUANG Qi-fan |
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| Affiliation: | (Fujian Key Laboratory of Advanced Materials,Department ofMaterials Science and Engineering,College of Materials,Xiamen University,Xiamen 361005,Fujian,China) |
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| Abstract: | Graphene ball reinforced SiCNO ceramics (SiCNO-GO) were prepared by using polyvinylsi-lazane (PVSZ) as raw material and graphene oxide (GO) as carbon source and anhydrous ethanol (ETOH) as dispersant. X-ray diffraction (XRD), Raman spectroscopy (Raman), electron spin resonance (EPR) and SEM were used to study the effect of SiCNO-GO ceramics on the dielectric properties. The results show that the microsphere density and particle size of SiCNO-GO ceramics are related to the content of GO. With the increase of GO content in SiCNO-GO ceramics, the dielectric constant and dielectric loss of SiCNO-GO ceramics also increase, reach the maximum value when the GO mass fraction is 0.1%. When the GO mass fraction is 0.3%, the dielectric constant and dielectric loss of the SiCNO-GO ceramics decrease. |
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| Keywords: | polymer derived ceramic(PDC) graphene dielectrical performance preparation |
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