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Polymer precursor synthesis of TaC-SiC ultrahigh temperature ceramic nanocomposites
Lu, Y; Chen, FH; An PF(安鹏飞); An, PF; Ye, L; Qiu, WF; Zhao, T
2016
发表期刊RSC ADVANCES
卷号6期号:91页码:88770-88776
文章类型期刊论文
摘要TaC-SiC ultrahigh temperature ceramic nanocomposites were prepared by cross-linking and subsequent pyrolysis of a novel soluble blend precursor in argon atmosphere. The precursor was synthesized by blending polycarbosilane (PCS) with polytantaloxane (PT). The geometry of metal-ligand interaction of polymer PT was determined by the X-ray absorption fine structure (XAFS). The prepared ceramic nanomaterials were investigated with respect to their chemical and phase composition, by means of FTIR, TG, X-ray diffraction (XRD), Micro-Raman spectroscopy, scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM). Annealing experiments of the TaC-SiC samples at temperatures in the range of 1000-1800 degrees C showed conversion into nanostructured ultrahigh temperature ceramic composites with a trace amount of free carbon. The average grain sizes of the precursor-derived TaC and SiC ceramics were both less than 50 nm. Ta, Si and C elements were homogeneously distributed in the sample at the submicron scale.
DOI10.1039/c6ra17723a
关键词[WOS]MECHANICAL-PROPERTIES ; OXIDATION BEHAVIOR ; ORGANIC-COMPOUNDS ; IN-SITU ; ZRB2 ; COMPOSITES ; HAFNIUM ; RESISTANCE ; ZIRCONIUM ; PYROLYSIS
语种英语
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000384571800108
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260335
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Lu, Y,Chen, FH,An PF,et al. Polymer precursor synthesis of TaC-SiC ultrahigh temperature ceramic nanocomposites[J]. RSC ADVANCES,2016,6(91):88770-88776.
APA Lu, Y.,Chen, FH.,安鹏飞.,An, PF.,Ye, L.,...&Zhao, T.(2016).Polymer precursor synthesis of TaC-SiC ultrahigh temperature ceramic nanocomposites.RSC ADVANCES,6(91),88770-88776.
MLA Lu, Y,et al."Polymer precursor synthesis of TaC-SiC ultrahigh temperature ceramic nanocomposites".RSC ADVANCES 6.91(2016):88770-88776.
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