effect of side insulation on stress and dislocation in the multi-crystalline silicon

Influence of modified bottom insulation on the seeded

2020/2/1This study proposes two kinds of bottom insulation with a moveable insulation block, with either a narrower or large horizontal width, for use in an industrial-size seeded directional solidification (DS) furnace to produce high-performance multi-crystalline silicon ingot.

Nanomechanics of graphene

The stress fields described by Equation (23) significantly differ from those of a dislocation within the core, although they are similar for the region far away from the core. The accumulated effect by the local difference is important for understanding grain-boundary strength, as explained below.

Nanomechanics of graphene

The stress fields described by Equation (23) significantly differ from those of a dislocation within the core, although they are similar for the region far away from the core. The accumulated effect by the local difference is important for understanding grain-boundary strength, as explained below.

Review Of Multicrystalline Silicon Wafer Solar Cell

U Gangopadhyay, S K Dhungel, K Kim, et.al, Novel low cost chemical texturing for very large area industrial multi-crystalline silicon solar cells, Journal Semiconductor Science and Technology 20, 2005. J.D. Hvlton, Wet chemical etching for crystalline silicon

Progress on Failure Mechanism of Lithium Ion Battery

In this paper, research progress of the failure mechanism of lithium-ion battery caused by diffusion-induced stress in recent years is reviewed from different levels of the active particle, the active electrode, the half-cell, the cell unit, and the cell.

「strained layer」にしたのとい

Consequently, strained stress caused in the interface between the buried silicon oxide film 12 and the bulk layer 14 can be reduced, thus suppressing the occurrence of dislocation. に その、めみシリコン12とバルク14とのにじるみがし、のをするこ

Numerical Modeling of Stress and Dislocations in Si Ingots

Unsteady modeling of the thermal stress and dislocations in silicon ingots grown by seed-directional solidification has been done for three cooling regimes to study the effect of the model parameters. To track the history of dislocation multiplication, our computations continuously consider the growth process from the beginning of crystallization on the seed to the end of cooling of the grown

Snehanshu Pal, Ph.D. (Assistant Professor)

Stress ratio does not show any significant effect on the number of vacancies, clusters and dislocation density on structural evolution during the asymmetric cyclic loading. Slight change in the grain rotation has been observed with the increase in temperature, and

Kalpakjian 2

The yield stress is then defined as the stress where this offset line intersects the stress-strain curve. This simple procedure is shown on the left side in Fig. 2.2. As the specimen begins to elongate under a continuously increasing load, its cross-sectional area decreases permanently and uniformly throughout its

Types Requirements Of Insulating Materials

b. It is used for industrial insulation and insulation for buildings against extremes of climate. c. In the form of specially made flexible sheets, thermacole can be used on intermediate concrete floors in multi-storey buildings, to reduce impact sound transmission. d.

Advanced Material Science and Engineering (AMSE2016)

A novel stress relief method, i.e. inter-pass thermal-vibration stress relief (ITVSR), was proposed. The effects of ITVSR were compared to that of regular VSR and vibration welding (V-Welding). The results indicate that ITVSR is highly effective in decreasing the residual stress in the plates, which is very important for components to be used in offshore engineering.

Precipitation Hardening of Aluminum Alloys :: Total

Precipitation hardening, or age hardening, provides one of the most widely used mechanisms for the strengthening of metal alloys. The strongest aluminum alloys (2xxx, 6xxx and 7xxx) are produced by age hardening. In order for an alloy system to be able to be

Effect of Side Insulation on Stress and Dislocation in the Multi

Effect of Side Insulation on Stress and Dislocation in the Multi-crystalline Silicon Ingot during Cooling Process 90 designs of cooling process were proposed by numerical simulation in previous reports. However, there is a lack of casting experimental support to the

Deformation Mechanisms in Advanced Structural

On the other hand, the microcracks inside the slip bands are believed to have originated from the deformationinduced defects to relieve the stress associated with low dislocation mobility in the composite (e.g., Figs. 46 (A) and 46 (B) and Fig. 47 (B)).

Numerical analysis of the dislocation density in

2013/1/1However, it is known that a high dislocation density is commonly generated in the silicon ingot during this production process, which reduces minority carrier lifetime [2]. In addition, the large residual stress in the crystal causes large fracture rates from the mechanical yield perspective and an accumulation of impurities that affects the electrical performance [3].

Concepts for nondestructive and depth

2.1. Fundamental relations X-ray stress analysis is based on the measurement of lattice spacings by means of Bragg's law,, in various directions (, ψ) with respect to the sample reference system (see Fig. 1).The lattice strain (is the strain-free lattice spacing) in the measurement direction is related to the components of the stress tensor, σ ij, by the fundamental equation of XSA.

Fourier Transform Infrared Spectroscopy for Natural Fibres

Fourier Transform Infrared Spectroscopy for Natural Fibres 49 3600 3500 3400 3300 3200 3100 3000 0.000 0.005 0.010 0.015 0.020 0.025 0.030 0.035 4 3 2 Absorbance W avenumber (cm-1) 1 1 3451 cm-1 2 3350 cm-1 3 3264 cm-1 4 3167 cm-1 3600 3500 3400

Thermal Barrier Coatings for Aeroengine Applications

2012/5/23The Effect of an Applied External Tensile Stress on the Oxidation Behavior of a Nickel-Base Alloy with a Re-base Diffusion-barrier-coating 27 October 2007 | Oxidation of Metals, Vol. 68, No. 5-6 Formation of a Rhenium-base Diffusion-barrier-coating System on Ni-base Single Crystal Superalloy and its Stability at 1,423 K

Challenges in Ceramic Science: A Report from the

I. Introduction The purpose of this paper is to report on the findings of a workshop on emerging areas in ceramic science that was held in March 2012. The workshop participants (the coauthors of this paper) represent a cross‐section of the ceramics research

Reprinted from Mineral and Rock Deformation: Laboratory

If dislocation creep remains the dominant deformation mechanism, then a decrease in grainsize should result in an increase in flow stress at a constant strain-rate (e.g. Nicolas and Poirier, 1976, p. 129). This effect, however, is only important in rock deformation at low

Advances in Mechanical Behaviour, Plasticity and

Role of stress on hydrogen attack (A. Baker et al.). Cyclic response of superduplex stainless steels in seawater (A. Girons et al.). Effect of surface treatment on fatigue life of the aluminium alloy 2024-T351 (F. Moulinier et al.). A probabilistic model foret al.).

Types Requirements Of Insulating Materials

b. It is used for industrial insulation and insulation for buildings against extremes of climate. c. In the form of specially made flexible sheets, thermacole can be used on intermediate concrete floors in multi-storey buildings, to reduce impact sound transmission. d.

Dissertation theses in SearchWorks catalog

By analyzing the data, it was discovered that dislocation multiplication frequently occurs on slip systems which experience zero applied shear stress (i.e., zero Schmid factor) and have a plastic strain rate of zero; we termed such multiplication slip-free

Numerical Modeling of Stress and Dislocations in Si Ingots

Numerical Study on Effect of Side Insulation Movement in the Multi-crystalline Silicon Growth Process. Silicon 2018, 426 DOI: 10.1007/s12633-018-9927-8. M. Srinivasan, P. Ramasamy. Numerical Modelling on Industrial Scale Multi-Crystalline Silicon Growth

Advanced Material Science and Engineering (AMSE2016)

A novel stress relief method, i.e. inter-pass thermal-vibration stress relief (ITVSR), was proposed. The effects of ITVSR were compared to that of regular VSR and vibration welding (V-Welding). The results indicate that ITVSR is highly effective in decreasing the residual stress in the plates, which is very important for components to be used in offshore engineering.

The Crystalline Structure of Metals

The BCC crystalline structure is in the form of a cube with eight atoms distributed among the eight corners similar to the FCC crystalline structure. What is different about the BCC crystalline structure is that rather than having an atom at each of the six faces, it has only one atom that is inside the cube.

Thermal Barrier Coatings for Aeroengine Applications

2012/5/23The Effect of an Applied External Tensile Stress on the Oxidation Behavior of a Nickel-Base Alloy with a Re-base Diffusion-barrier-coating 27 October 2007 | Oxidation of Metals, Vol. 68, No. 5-6 Formation of a Rhenium-base Diffusion-barrier-coating System on Ni-base Single Crystal Superalloy and its Stability at 1,423 K

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