Stacking fault formation during epitaxial SiGe layer growth in bipolar complementary metal oxide semiconductor (BiCMOS) process which caused high yield loss due to its leakage current on bipolar transistors has been studied. Through the analysis of process flow, oxidation induced stacking faults were indicated as a possible root cause of the yield loss. The identification of the oxidation induc...

The dissociation of dislocations in the NaCl structure is discussed in terms of Fontaine's model. There are no well-defined partials in the dissociation of the Burgers vector a/2 [I101 on the (1x0) slip plane. The stacking fault on this plane is connected with a dilatation normal to (170). This leads to an unique effect of hydrostatic pressure on the frequency of cross slip. Cross slip in stage...

Grain boundaries (GBs) provide a strengthening mechanism in engineering materials by impeding dislocation motion. In a polycrystalline material, there is a wide distribution of GB types with characteristic slip transmission and nucleation behaviors. Slip–GB reactions are not easy to establish analytically or from experiments; furthermore, there is a strong need to quantify the energy barriers o...

Introduction The mechanical properties of austenitic stainless steels, including the low cyclic fatigue behavior have been a subject of numerous studies [1-8]. Nitrogen addition, in general, increases the fatigue strength by decreasing the stacking fault energy of austenitic stainless steels [6]. The stacking fault energy has a strong influence on the cross slip difficulty, thus it affects the ...

The intrinsic stacking-fault energies and free energies for Ag, Cu, and Ni are derived from molecular-dynamics simulations using the empirical tight-binding potentials of Cleri and Rosato [Phys. Rev. B 48, 22 (1993)]. While the results show significant deviations from experimental data, the general trend between the elements remains correct. This allows to use the potentials for qualitative com...

In an effort to establish a scientific foundation for the computational development of advanced Mg-based alloys, a systematic study of the generalized stacking fault (GSF) energy curves has been undertaken. Additionally, the associated stable and unstable stacking and twinning fault energies, ideal shear strengths, and comparative twinnability have been investigated in terms of first-principles...

Basic factors that influence the physical metallurgy and the mechanical properties of cobalt-base alloys are discussed in this study; these factors include the coherency of the interphase interface, the stacking fault energy, and the average electron hole number. Control of these factors and considerations of corrosion resistance and body compatibility determined the compositions for alloys tha...

The application of the weak-beam method of electron microscopy to the measurement of the separation of partial dislocations 2 2.0 nrn is discussed. The accuracy of the experimental results is analysed, and approximations in obtaining values of the stacking-fault energy, y, are outlined.