Determination of pressure effect on the melting point elevation of Al nanoparticles encapsulated in Al2O3 without epitaxial interface

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	Determination of pressure effect on the melting point elevation of Al nanoparticles encapsulated in Al2O3 without epitaxial interface
	Q. S. Mei; S. C. Wang; H. T. Cong; Z. H. Jin; K. Lu
	2004
发表期刊	Physical Review B
ISSN	1098-0121
卷号	70 期号:12
摘要	We report a quantitative measurement of the pressure effect on melting point elevation of encapsulated nanoparticles without epitaxial interfaces. By means of in situ x-ray diffraction, a substantial melting point elevation of about 15 K in encapsulated Al nanoparticles in Al2O3 shells without epitaxial interfaces was observed. Meanwhile, a pressure buildup of about 0.25 GPa on the Al nanoparticles was determined due to constraint of the rigid Al2O3 shell. The correlation between the measured pressure and melting point elevation in the present system verified that the observed melting point elevation is a pressure-induced phenomenon and the pressure effect on melting point for encapsulated nanoparticles follows the rule for bulk solids.
部门归属	chinese acad sci, shaenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;lu, k (reprint author), chinese acad sci, shaenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;lu@imr.ac.cn
关键词	Matrix Temperature Particles Depression Crystals Aluminum Surface Ag
URL	查看原文
WOS记录号	WOS:000224209600084
引用统计	被引频次：14[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/321006/35500
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. S. Mei,S. C. Wang,H. T. Cong,et al. Determination of pressure effect on the melting point elevation of Al nanoparticles encapsulated in Al2O3 without epitaxial interface[J]. Physical Review B,2004,70(12).
APA	Q. S. Mei,S. C. Wang,H. T. Cong,Z. H. Jin,&K. Lu.(2004).Determination of pressure effect on the melting point elevation of Al nanoparticles encapsulated in Al2O3 without epitaxial interface.Physical Review B,70(12).
MLA	Q. S. Mei,et al."Determination of pressure effect on the melting point elevation of Al nanoparticles encapsulated in Al2O3 without epitaxial interface".Physical Review B 70.12(2004).