preliminary study on molten silicon velocity distribution during the directional solidification into i-dss furnace

Preliminary study on molten silicon velocity distribution during the

Preliminary study on molten silicon velocity distribution during the directional solidification into i-DSS furnace F. Dughiero1, M.Forzan1, N. Sempreboni1, A. Tolomio1, 1Laboratory ofElectroheat (LEP) – Department of Industrial Engineering (DII) University ofPadova

Heat transfer and microstructure during the early

This study focused on the characterization of transient heat transfer at the early stages of solidification and the consequent evolution of the secondary dendrite arm spacing. Water-cooled chills instrumented with thermocouples were dipped into melts of known superheats such that unidirectional solidification

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Preprints is a multidisciplinary preprint platform that accepts articles from all fields of science and technology, given that the preprint is scientifically sound and can be considered part of academic literature. A Limiting Current O 2 sensor constituted of (CeO 2) 0.95 (Y 2 O 3) 0.05 as Solid Electrolyte Layer and (CeO 2) 0.75 (ZrO 2) 0.25 as Dense Diffusion Barrier Layer

ISIJ International

Steel Science Portal is a website for accessing the latest information about steel-related technology. The site provides a cross-search function for accessing treatises in the field of steel technology, a database of report abstracts from the main steel and steel-related journals, links to the principle journals and steel company technical reports, as well as links to steel-related news and

Summary of International Energy Research and

Summary of International Energy Research and Development Activities 1974–1976 is a directory of energy research and development projects conducted in various countries such as Canada, Italy, Germany, France, Sweden, and the United Kingdom between 1974

Interaction of SiC particles with moving solid–liquid

2016/8/1To study experimentally pushing and engulfment phenomena of SiC particles during solidification of silicon, experiments were performed in the well-known ELLI mirror furnace . For that purpose single crystalline, 〈100〉-oriented silicon rods with 8 mm diameter were used.

0913 Mechanical Engineering

4D synchrotron X-ray tomographic quantification of the transition from cellular to dendrite growth during directional solidification Academic Article A 3-D coupled hydromechanical granular model for simulating the constitutive behavior of metallic alloys during

IOP Conference Series: Materials Science and Engineering,

For dynamic conditions as e.g. during directional solidification, criteria for the critical pulling velocity and critical droplet position are suggested and validated by the PF simulations. When the pulling velocity is lower than the critical pulling velocity, the droplet will migrate through the moving liquidus into

The Glossary of Foundry and Casting

Opening in a furnace through which molten metal is tapped into the forehearth or ladle. See Ladle. Teapot Ladle Ladle with external spout wherein the molten metal is poured from the bottom rather than from the top. See Ladle. Tear, Hot Same meaning as hot

High thermal gradient directional solidification and its

2010/1/1It can be seen that the first term is orders of magnitude larger than the latent heat term in equation at lower growth rate. This suggests that the latent heat has no significant influence on the thermal gradient basically. With increasing in growth rate, the value of G L decreases and approaches to zero and then to be negative, if growth rate is larger than the order of 1 10 −4 m s −1.

Heat transfer and microstructure during the early

This study focused on the characterization of transient heat transfer at the early stages of solidification and the consequent evolution of the secondary dendrite arm spacing. Water-cooled chills instrumented with thermocouples were dipped into melts of known superheats such that unidirectional solidification

ISIJ International, Volume 58, Issue 3

In this study, MgO–C refractories with various carbon contents were immersed into Al-killed molten steel to investigate the dissolution behavior of Mg from MgO–C refractory. The result showed that Mg gradually dissolved into the steel melt from the refractory, and spinel inclusions were formed.

Investigation on the effect of electrode tip on formation

AbstractIn the present work, a transient full-coupled modelling approach has been put forward to study the effect of electrode tip on formation of metal droplets and temperature profile in the electromagnetically-controlled electroslag-remelting furnace with vibrating

93rd AFS Casting Congress in review.

1989/8/193rd AFS Casting Congress in Review More than 150 individual presentations from the ten AFS technical divisions comprised the program of the 93rd Casting Congress of the American Foundrymen's Society held May 7-11 in San Antonio, TX. Part two of our

Symposium B

Predictions for the dendrite tip velocity (v) vs. tip temperature (T) function depend sensitively on the amount of deviation from local interfacial equilibrium during rapid solidification. These deviations (solute trapping; kinetic undercooling) have been characterized experimentally for plane-front growth but never in a system for which the dendrite tip v and T could be measured.

The influence of tin particles on the nucleation of spurious

Spurious grains are defects that arise in single crystal turbine blades of superalloys. Because they can act as favorable locations for crack initiation and in-service failure, they often lead to blades being rejected. Although spurious grains in single crystal castings may nucleate by many mechanisms, strong but indirect evidence exists that the presence of nitride and oxide inclusions can

ISIJ International

Steel Science Portal is a website for accessing the latest information about steel-related technology. The site provides a cross-search function for accessing treatises in the field of steel technology, a database of report abstracts from the main steel and steel-related journals, links to the principle journals and steel company technical reports, as well as links to steel-related news and

International Journal of Heat and Mass Transfer

The Standard Abbreviation (ISO4) of International Journal of Heat and Mass Transfer is Int. J. Heat Mass Transf.. International Journal of Heat and Mass Transfer should be cited as Int. J. Heat Mass Transf. for abstracting, indexing and referencing

Interaction of SiC particles with moving solid–liquid

2016/8/1To study experimentally pushing and engulfment phenomena of SiC particles during solidification of silicon, experiments were performed in the well-known ELLI mirror furnace . For that purpose single crystalline, 〈100〉-oriented silicon rods with 8 mm diameter were used.

93rd AFS Casting Congress in review.

1989/8/193rd AFS Casting Congress in Review More than 150 individual presentations from the ten AFS technical divisions comprised the program of the 93rd Casting Congress of the American Foundrymen's Society held May 7-11 in San Antonio, TX. Part two of our

Influence of Process Parameters and Sr Addition on the

The molten metal was tapped from the furnace and N-degassed for 8 min with a rotary degasser (Foseco MTS Rotor 190, at 600 rpm). During degassing, weighed AlMg20 waffle ingots and AlTi5B1 rods were added into the base alloy to ensure that the Mg level

IOP Conference Series: Materials Science and Engineering,

Directional solidification experiment under forced convection condition was conducted. The AlSi7 alloy was solidified in an alumina cylindrical crucible (8 mm) in a Bridgeman furnace; and forced convection was induced by applying rotating magnetic field (RMF).

Nucleation and bulk growth control for high efficiency

2011/3/1Directional solidification for multi-crystalline silicon production can be roughly divided into two steps: nucleation and bulk growth steps. Requirements for nucleation and bulk growth are different. The commercial production systems reviewed here do not consist of nucleation control design.

ISIJ International

Steel Science Portal is a website for accessing the latest information about steel-related technology. The site provides a cross-search function for accessing treatises in the field of steel technology, a database of report abstracts from the main steel and steel-related journals, links to the principle journals and steel company technical reports, as well as links to steel-related news and

Assessment of Metallurgical Performance of Kambara

Study on the Technical Status of China Electrolyzed Mn Industrial Production, Electrochemical Reactions of the Cathode-Anode Process of Mn Electrolysis and on the Means of Increasing Current Efficiency during Manganese Electrolytic Process

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