変態誘起原子空孔-新しい原子空孔形成機構とその役割の検証-

相变诱导原子空位 -新型原子空位形成机制及其作用的验证-

• 批准号: 05805053
• 负责人: 白井 泰治
• 金额: $ 1.15万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05805053/
• 关键词: 規則・不規則変態; 陽電子消滅; 原子空孔; 相変態

本研究を着想させるに到った異常現象をいくつかの観点から実験的に検証する事を試みた.これまでに得られた結果は,以下のようにまとめられる.1.異常現象を発見したCu_3Auを用いて,変態温度以上の種々の急冷温度から種々の急冷速度で不規則相を凍結したのち等温焼鈍を行い,異常現象の発現する度合を明らかにした.その結果,当初異常が発見された等時焼鈍時に限らず,等温焼鈍時にも明瞭な欠陥形成現象が確認された.急冷温度が高い程異常は大きく,一方急冷速度は速い方が異常が顕著である.また同一の急冷温度・急冷速度を用いた場合は,焼鈍温度が高い程異常の発現する時間は短いことが明かとなった.2.Cu_3Auと同じくL1_2規則構造に変態するAu_3Cdを変態点以上の800Kから急冷し,室温から750Kまで等時焼鈍を加えながら陽電子消滅寿命測定を行った.その結果凍結空孔の消滅および熱平衡空孔の形成が明瞭に捉えられた反面,相変態に起因すると考えられる異常な原子空孔の形成は認められなかった.以上の実験事実をもとに,相変態に伴う原子空孔形成の条件およびメカニズムの解明を進めている.今後規則・不規則変態以外の相変態についても研究を進め,相変態誘起原子空孔の全容を明らかにしたい.

The purpose of this study is to tell you that it is often the same as that in the middle of the day. You can get the results. The following is the best result. 1. As you can see, there are several kinds of rapid cooling temperature above the normal temperature, such as Cu_3Au temperature, temperature and temperature. According to the results of the test, it is common to see that the temperature is limited at the same time, and that it is clear that the defect forms an image to confirm the temperature at the same time. The quench temperature is very high, and the speed of one side is very high. The temperature at the same temperature and the speed at which the quench temperature is quenched at the same temperature are combined, and the temperature at room temperature is very high. The temperature at room temperature is very high, and the temperature at room temperature is 750K. The temperature at room temperature and the temperature at room temperature are 750K and 750K, respectively. Cu _ 3Au is the same as the L1N2 rule. The cycle temperature is above 800K at room temperature. The results show that the empty hole eliminates the balance of the empty hole to form the opposite side of the hole, and the cause is different. The atomic hole is often formed. The above information is related to the formation of atomic holes in the presence of atomic voids. In the future, the study of non-rule behavior has been carried out, and the atomic hole is fully open and clear.