In-situ hot pressing/solid-liquid reaction synthesis of bulk Cr2AlC

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	In-situ hot pressing/solid-liquid reaction synthesis of bulk Cr2AlC
	Z. J. Lin; Y. C. Zhou; M. S. Li; J. Y. Wang
	2005
发表期刊	Zeitschrift Fur Metallkunde
ISSN	0044-3093
卷号	96 期号:3 页码:291-296
摘要	Single-phase bulk Cr2AlC, a non-Ti-containing carbide with superior expected properties, was successfully fabricated by in-situ hot pressing/solid-liquid reaction process. The reaction process was investigated using differential scanning calorimetry. The products were characterized using X-ray diffraction and scanning electron microscopy. Four distinguished stages of the reactions from Cr, Al, and C elemental powders were discussed. The obtained X-ray diffraction data are in good agreement with calculated ones and those from JCPDS card No. 29-0017. A new set of Xray diffraction data. comprising reflections, 2 theta, and intensities of Cr2AlC is presented. Lattice parameters obtained by Rietveld XRD refinement of Cr2AlC are a = 2.858 angstrom and c = 12.818 angstrom, respectively. The measured Vickers hardness of the as-synthesized Cr2AlC is 5.5 +/- 0.4 GPa, which is twice that of Ti2AlC. CrAlC displays excellent oxidation resistance. The parabolic rate constant of Cr2AlC was decreased by 3 - 4 orders of magnitude compared with those of Ti3SiC2 at 1200 degrees C.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, high performance ceram div, shenyang 110016, peoples r china. chinese acad sci, inst met res, int ctr mat phys, beijing 100864, peoples r china.;zhou, yc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, high performance ceram div, 72 wenhua rd, shenyang 110016, peoples r china;yczhou@imr.ac.cn
关键词	Cr2alc Solid-liquid Reaction Xrd Hardness Oxidation Oxidation Behavior Ti3alc2 Air Ti3sic2 Phases Composites Ti2alc Ti
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WOS记录号	WOS:000228395200011
引用统计	被引频次：143[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34925
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. J. Lin,Y. C. Zhou,M. S. Li,et al. In-situ hot pressing/solid-liquid reaction synthesis of bulk Cr2AlC[J]. Zeitschrift Fur Metallkunde,2005,96(3):291-296.
APA	Z. J. Lin,Y. C. Zhou,M. S. Li,&J. Y. Wang.(2005).In-situ hot pressing/solid-liquid reaction synthesis of bulk Cr2AlC.Zeitschrift Fur Metallkunde,96(3),291-296.
MLA	Z. J. Lin,et al."In-situ hot pressing/solid-liquid reaction synthesis of bulk Cr2AlC".Zeitschrift Fur Metallkunde 96.3(2005):291-296.