✦ LIBER ✦

Interaction between a dislocation and various divalent impurities in KCl single crystals

✍ Scribed by Y. Kohzuki; T. Ohgaku; N. Takeuchi

Publisher: Springer
Year: 1995
Tongue: English
Weight: 330 KB
Volume: 30
Category: Article
ISSN: 0022-2461
DOI: 10.1007/bf00352137

No coin nor oath required. For personal study only.

✦ Synopsis

The strain-rate cycling test during the Blaha effect measurement at 77-254 K was carried out for four kinds of single crystals: KCI doped with Mg 2 § Ca 2 § Sr z+ or Ba z+ as a weak obstacle. It was found that the critical temperature, at which the effective stress is zero, increases when the divalent ionic size approaches increasingly that of the K § ion. Furthermore, the activation energy for the interaction between a dislocation and the divalent ion-vacancy dipole was determined. The activation energy increases with the divalent ionic size. Fleischer's model attributes this to the difference of tetragonality around the dipole for each specimen.

📜 SIMILAR VOLUMES

Interaction between a Dislocation and Mo

Interaction between a Dislocation and Monovalent Impurities in KCl Single Crystals

✍ Ohgaku, T. ;Takeuchi, N. 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 345 KB

Interaction between a dislocation and im

Interaction between a dislocation and impurities in KCI single crystals

✍ Y. Kohzuki; T. Ohgaku; N. Takeuchi 📂 Article 📅 1993 🏛 Springer 🌐 English ⚖ 400 KB

Influence of a state of impurities on th

Influence of a state of impurities on the interaction between a dislocation and impurities in KCl single crystals

✍ Y. Kohzuki; T. Ohgaku; N. Takeuchi 📂 Article 📅 1993 🏛 Springer 🌐 English ⚖ 354 KB

Interaction between a dislocation and mo

Interaction between a dislocation and monovalent anion in various alkali halide crystals

✍ Y. Kohzuki 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 197 KB 👁 1 views

It was investigated from (L 0 /L) 2 versus φ 0 curve that the Friedel relation between the effective stress and the average length of dislocation segments, L, is appropriate for the interaction between a dislocation and the monovalent anion in various alkali halides single crystals (NaCl: Br -, NaBr

Dislocation indentation size effect in K

Dislocation indentation size effect in KCl single crystals

✍ Soifer, Ya. M. ;Verdyan, A. 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 265 KB

## Abstract A systematic range of nanoindentation measurements on (001) KCl single crystals was performed to differentiate between true size effects and other factors that can give rise to an apparent increase in hardness. The hardness and Young's modulus values were determined by combining the loa

Investigation of Interaction between a D

Investigation of Interaction between a Dislocation and a Br? Ion in NaCl:Br? Single Crystals

✍ Ohgaku, T. ;Teraji, H. 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB 👁 2 views

Subject classification: 62.20.Hh; S9.11 Strain rate cycling tests were carried out under simultaneous Blaha effect measurement on NaCl single crystals doped with Br --. Curves of strain rate sensitivity (SRS) of flow stress versus stress decrement due to superimposition of oscillatory stress were ob