THERMAL-EXPANSION BEHAVIORS IN NANOCRYSTALLINE MATERIALS WITH A WIDE GRAIN-SIZE RANGE
文献类型：期刊论文
| 作者 | K. Lu ; M. L. Sui |
| 刊名 | Acta Metallurgica Et Materialia
 |
| 出版日期 | 1995 |
| 卷号 | 43期号:9页码:3325-3332 |
| 关键词 | ni-p alloys thermodynamic properties ultrafine grains boundaries metals energy state |
| ISSN号 | 0956-7151 |
| 中文摘要 | Thermal expansion behaviors of nanocrystalline (NC) Ni-P alloy samples with grain sizes ranging from a few to 127 nm were studied experimentally using thermal mechanical analysis. Porosity-free NC Ni-P samples with a wide grain size range were synthesized by completely crystallizing amorphous Ni-P alloy at different annealing temperatures. Measurements showed that the linear thermal expansion coefficient (alpha(L)) increases markedly with a reduction of the average grain size in the as-crystallized NC Ni-P samples. The thermal expansion coefficient was also found to decrease during grain growth in the as-crystallized NC sample upon annealing. From the grain size dependence of alpha(L) in these NC samples, we deduced that the difference in thermal expansion coefficients between the interfaces and the nm-sized crystallites diminishes when the grain size becomes smaller. This tendency agrees well with other experimental results on the structural characteristics of the interfaces and the nm-sized crystallites in NC materials. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/38628]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | K. Lu,M. L. Sui. THERMAL-EXPANSION BEHAVIORS IN NANOCRYSTALLINE MATERIALS WITH A WIDE GRAIN-SIZE RANGE[J]. Acta Metallurgica Et Materialia,1995,43(9):3325-3332. |
| APA | K. Lu,&M. L. Sui.(1995).THERMAL-EXPANSION BEHAVIORS IN NANOCRYSTALLINE MATERIALS WITH A WIDE GRAIN-SIZE RANGE.Acta Metallurgica Et Materialia,43(9),3325-3332. |
| MLA | K. Lu,et al."THERMAL-EXPANSION BEHAVIORS IN NANOCRYSTALLINE MATERIALS WITH A WIDE GRAIN-SIZE RANGE".Acta Metallurgica Et Materialia 43.9(1995):3325-3332. |
入库方式： OAI收割
来源：金属研究所
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