The interaction of hydrogen with microstructural defects studied by internal friction

Dislocation-solute Atom Interaction in Aluminum Studied by Amplitude-dependent Internal Friction

In order to get the information on the force-distance curve for the interaction between a dislocation and a solute atom, amplitude-dependent interna1 friction was measured at 1.7 30 K on Al-100 at ppm Zn and Al-50 at ppm Zn single crystals. The temperature dependence of applied strain under a constant decrement is the same for two concentrations with high accuracy. The data were analyzed by the...

STUDY OF DISLOCATION - POINT DEFECTS INTERACTION IN MgO SINGLE CRYSTALS BY INTERNAL FRICTION

The Interaction of Hydrogen with Deep Level Defects in Silicon

6 Self-interstitial–hydrogen complexes in silicon and germanium . . . . . . . . 21 6.1 Experimental work on IH2 defects . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.2 The silicon self-interstitial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.3 Interstitial complexes with one hydrogen atom . . . . . . . . . . . . . . . . . . . 23 6.4 Di-hydrogenated split intersti...

Internal Friction Transient Effects of Titanium Hydrogen Solid Solution

The internal friction of pure Ti between 500K and700K is constant at 10-4 when measured during a continuous increase of temperature. In opposite when the temperature is increased stepby step, each increase of 10K induces immediatly a raising up of 4 10-4 internal friction. During the following stage at the new temperature the internal friction falls slowly down to its initial value. This behavi...

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...