Search results

Substitution of IIB elements with Mn and Fe in II-VI compounds will introduce magnetic properties and forms the so-called dilute magnetic semiconductors [1].
The heat exchange between the crucible and the furnace is mainly through radiation at the high temperature, but affected by the convection of the air in the gap.
The micro-scale interface morphology is another factor related to the heat transfer during the growth process, which has great influences on the crystal qualities of II-VI compounds.
Kenworthy: Journal of Electronic Materials Vol. 15 (1986), p. 361 [12] Zhou Yaohe, Hu Zhuangqi, and Jie Wanqi: Solidification Technologies (Mechanical Industry Publication, China 1997) (in Chinese) [13] Liu Juncheng, Jie Wanqi and Zhou Yaohe: Progress in Natural Science Vol. 7 (1997), p. 215 [14] Xiaohua Liu, Wanqi Jie, Yaohe Zhou: Journal of Crystal Growth Vol. 209 (2000), p. 751 [15] A.

In the past, many researchers have attempted to modify the electronic properties of another photocatalyst TiO2 in order to extend its optical absorption edge into the visible light region and to improve the photocatalytic activity.
During high energy milling, SrTiO3 powders were subjected to severe mechanical deformation by the collisions with milling balls and pot.
Specific surface area of the sample is another important factor which affects the photocatalytic activity.

A prediction of the microstructure consisting of proeutectoid ferrite (α), pearlite (P), and bainite (B) has long been a desired technology, which would be the basis for balancing mechanical properties and good machinability of final products.
The α/P/B fraction after forging is mainly affected by both carbon and manganese content, austenite (γ) grain size (AGS), and cooling schedules.
Thus in our model, the critical enrichment factor C has been introduced in the new thermodynamic condition.

Simulation of temperature fields in the transport container Natália Jasminská1a*, Tomáš Brestovič1b, Marián Lázár1c, Mária Čarnogurská1d and Juraj Václav1e 1 Faculty of Mechanical Engineering, TU Košice, Department of Power Engineering, Vysokoškolská 4, 042 00 Košice, the Slovak Republic anatalia.jasminska@tuke.sk, btomas.brestovic@tuke.sk, cmarian.lazar@tuke.sk, dmaria.carnogurska@tuke.sk, eJuraj.Vaclav@ujd.gov.sk Keywords: transport container, temperature field, numerical simulation, ansys CFX.
C-30 transport container Due to the physical properties of spent nuclear fuel (SNF) the key factor for its removal from the reactor core is the storage pool in the immediate vicinity of the reactor.
For the calculation some structural elements were omitted, as their absence does not affect the velocity and rate heat dissipation (screws and connection points for measuring devices, provided the layer of radioactive shielding was added to the material thickness).

Though the high density of ether group, PEO was suffered the disadvantages of high crystallinity and poor mechanical properties as well.
When the PEAm concentration is higher than 1.2 wt%, the increase of IP layer thickness may become the dominant factor for gas permeation, which lead to obvious decrease of CO2 permeance.
However for the membrane developed in this work, the CO2 permeance and CO2/N2 selectivity is also affected by the EO group content in membrane.

The size of the Si particles was characterized by average area, average perimeter and equivalent diameter, the shape of the Si particles was characterized by the aspect ratio and circuit factor.
This phenomena leads to an increase of an amount of crystal nucleus what affects on the size of grains and secondary dendrite arm spacing.
Allison: The effect of solidification time on the mechanical properties in a cast A356-T6 aluminum alloy, Society of Automotive Engineers, Inc., 1997

El-Hossainy 2b 1 Mechanical Engineering Dept.
The understanding of these precipitation mechanisms during artificial aging is critical for achieving optimal properties.
Also, to investigate how aging treatment affects the strain hardening response of the 6082 material aged to different conditions and subjected to post aging plastic deformation via different stress states, namely, simple compression (SC), simple shear (SS) and plane strain compression (PSC).
In PSC, Leffers and Sorenson [7] proposed that the rotation of the {111} planes to approximately being parallel to the rolling plane increases the Shmidt factor tremendously, which makes homogeneous slip on these planes extremely difficult thus promoting inhomogeneous deformation through shear bands.

The reinforcement factor was μs=0.0105.
The constructions of the experimental CFRP beams and further arrangements related to the strain gauges T1...T12: a. lengthwise cut; b. cross-section Strength properties of the materials used.
Mechanical characteristics of the canvases were defined on the basis of the results of testing carbon fibers strips jointed by the SikaDur®-330 epoxy glue, which was used for gluing strengthening elements to the beams.
Strengthening the reinforced concrete beams by the CFRP leads to an increase in flexural rigidity of beams, which affects the amount of deflections before and after crack formation.

The increased size and uniformity of the nucleation sites observed in the heat-treated samples indicate that thermal treatment enhances the structural properties of the lithium surface, making it more conducive to the formation of a stable SEI.
The pronounced changes in the morphology of the lithium surface suggest that thermal treatment not only affects the physical structure but also potentially alters the chemical composition of the surface, which could improve interaction with the electrolyte [11-12].
The uniform distribution and increased size of nucleation sites after thermal treatment likely contribute to the overall stability of the SEI, reducing the risk of dendritic lithium formation, which is a critical factor in the safety and longevity of LMBs.
This improved interaction is crucial for preventing dendritic lithium growth and maintaining the mechanical integrity of the SEI during cycling, ultimately enhancing battery safety and performance [15-16].

It is worth noting that by developing technologies for processing electronic scrap, it is necessary to pay attention to the separation of toxic and hazardous components, as well as minimize the loss of precious metals, which can adversely affect the economic performance of the process.
Underground disposal, burning in the air and acid leaching negatively affect the environment, polluting drinking water and the atmosphere.
Theoretical Basis The task of waste preparing for the purpose of homogenization and separation of several fractions, homogeneous in composition and properties, suitable and useful for subsequent metallurgical processing, is highly relevant [9].
The main negative factor of the roasting process, in the preparation of raw materials for obtaining concentrates of precious and non-ferrous metals, is a very strong, harsh, unpleasant odor releasing from both the roasted product and from the equipment.
Mechanical recycling of waste electric and electronic equipment: A review.