Spatio-temporal Structural Fluctuation in Radiation induced amorphization and 1/f noise

辐射引起的非晶化和 1/f 噪声中的时空结构涨落

• 批准号: 15560569
• 负责人: WATANABE Seiichi
• 金额: $ 2.3万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560569/
• 关键词: amorphous; metallic glass; nonequilibrium materials; TEM; radiation effect; fluctuation; scale invariance; far-from-equilibrium; エネルギービーム; 固有オーダリング; べき乗則; 非平衡開放系

Temporal nanostructural fluctuations brought about by transient, metastable atom-cluster formation during radiation-induced amorphizing transformation in the intermetallic compound NiTi, observed using a combination of high-resolution high-voltage electron microscopy and molecular dynamics simulations, were characterized in terms of power-law responses of nonequilibrium, energy-dissipative systems. Within the framework of the multi-Lorentzian picture, the resultant power law also describes the multirelaxation time (i.e., cluster lifetime) distribution. In addition, a unified relation for the autocorrelation functions for such fluctuation phenomena was newly proposed.

时间纳米结构的波动所带来的瞬态，亚稳态原子团簇形成辐射诱导的非晶化转变过程中的金属间化合物NiTi，观察使用高分辨率高压电子显微镜和分子动力学模拟相结合，其特征在于在幂律响应的非平衡，能量耗散系统。在多洛伦兹图像的框架内，所得的幂律也描述了多弛豫时间（即，簇寿命）分布。此外，新提出了这种涨落现象的自相关函数的统一关系。

项目成果

Nanostructural Fluctuation in Radiation-Amorphised Alloys

辐射非晶合金中的纳米结构涨落

• 发表时间: 2004
• 期刊: Radiation Effects and Ion Beam Modification of Materials, Proceedings of the Materials Reseach Society (L.M.Wang, R.Fromknecht, L.L.Snead, D.F.Downey, H.Takahashi (Eds.))(Materials Reseach Society, Warrendale, PA, USA) (ISBN1-55899-730-X) Vol.792(Invited
• 作者: Seiichi Watanabe;Heishichirou Takahashi;Nghi Q.Lam
• 通讯作者: Nghi Q.Lam

S.Watanabe, T.Koike, T.Suda, S.Ohnuki, H.Takahashi, N.Q.Lam: "Metastable defect cluster formation during radiation-induced amorphization in NiTi"Mater.Trans.. 45. 24-28 (2004)

S.Watanabe、T.Koike、T.Suda、S.Ohnuki、H.Takahashi、N.Q.Lam：“NiTi 辐射诱导非晶化过程中亚稳态缺陷簇的形成”Mater.Trans.. 45. 24-28 (2004)

A multi-scale approach to radiation-induced segregation at various grain boundaries

• DOI: 10.1016/j.jnucmat.2004.04.268
• 发表时间: 2004-08
• 期刊: Journal of Nuclear Materials
• 影响因子: 3.1
• 作者: N. Sakaguchi;Seiichi Watanabe;Heishichiro Takahashi;R. Faulkner

プロフェッショナル英和辞典スペットテラ(物質・工学編)

专业英日词典SPETTERA（材料/工程版）

• 发表时间: 2004
• 作者: 渡辺精一他著;堀内克明;蟹江幸博他編
• 通讯作者: 蟹江幸博他編

Radiation-induced glass transition and structural fluctuation in NiTi metallic glass system

NiTi 金属玻璃体系中辐射诱导的玻璃化转变和结构波动

• 发表时间: 2006
• 期刊: AIP Conference Proceedings (accepted,印刷中)
• 作者: S.Watanabe;S.Watanabe
• 通讯作者: S.Watanabe