Synthesis and oxidation of Zr(3)Al(3)C(5) powders

IMR OpenIR

	Synthesis and oxidation of Zr(3)Al(3)C(5) powders
	L. F. He; Y. C. Zhou; Y. W. Bao; J. Y. Wang; M. S. Li
	2007
发表期刊	International Journal of Materials Research
ISSN	1862-5282
卷号	98 期号:1 页码:40977
摘要	Predominantly single phase Zr(3)Al(3)C(5) powders were synthesized in an Ar atmosphere using Zr-Al intermetallics and graphite as starting materials. The reaction path of Zr(3)Al(3)C(5) synthesis was discussed based on differential scanning calorimetry and X-ray diffraction results. Lattice parameters of Zr(3)Al(3)C(5) determined using the Rietveld method are a = 3.347 angstrom and c = 27.642 angstrom. In addition, the oxidation of Zr(3)Al(3)C(5) powders was tested by using thermogravimetry-differential scanning calorimetry. The starting and complete oxidation temperatures are 400 degrees C and 1200 degrees C, respectively. These temperatures are much higher than those for ZrC, suggesting that Zr(3)Al(3)C(5) has better oxidation resistance than ZrC. On the other hand, the oxidation degree of Zr(3)Al(3)C(5), defined for the complete carbideoxide transformation, overshot 100% during oxidation. This overshooting is attributed to the formation of amorphous carbon. The phase evolution during the oxidation of Zr(3)Al(3)C(5) was also investigated.
部门归属	chinese acad sci, met res inst, high performance ceram div, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, grad sch, beijing, peoples r china.;zhou, yc (reprint author), chinese acad sci, met res inst, high performance ceram div, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;yczhou@imr.ac.cn
关键词	Zr(3)Al(3)c(5) Zrc Oxidation Xrd Dsc Liquid Reaction Synthesis Single-crystals Carbon Ti3alc2 Microstructure Composites Carbide Hafnium Alzrc2 Zrc
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33575
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. F. He,Y. C. Zhou,Y. W. Bao,et al. Synthesis and oxidation of Zr(3)Al(3)C(5) powders[J]. International Journal of Materials Research,2007,98(1):40977.
APA	L. F. He,Y. C. Zhou,Y. W. Bao,J. Y. Wang,&M. S. Li.(2007).Synthesis and oxidation of Zr(3)Al(3)C(5) powders.International Journal of Materials Research,98(1),40977.
MLA	L. F. He,et al."Synthesis and oxidation of Zr(3)Al(3)C(5) powders".International Journal of Materials Research 98.1(2007):40977.