CO2 Plasma Arc Heating Test in C/C Composite Penetrated with Silicone Oil

<p>Plasma arc recovery melting of the quartz-leucoxene concentrate is investigated. Experiments were made in laboratory DC plasma arc furnace in various crucibles. The best results are reached in a cold copper crucible. The temperature field of a pool is calculated in hot graphite and cold copper crucibles. It is shown that in a graphite crucible diameter of an anode spot is more, and density of current and material temperature in a spot is less, than in copper that is the reason of the worst refinements in a graphite crucible.</p>

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Investigation on the Controllable Microstructures of High Iron Content Al-Fe Alloys Fabricated via Solid-Liquid Mixture Method Combining with Plasma Arc Heating Approach

Advanced Engineering Materials ◽

10.1002/adem.201700426 ◽

2017 ◽

Vol 19 (12) ◽

pp. 1700426

Author(s):

Yuli Zhou ◽

Jian Wang ◽

Mingyang He ◽

Lin Gu ◽

Peihua Wangyang

Keyword(s):

Iron Content ◽

Liquid Mixture ◽

Plasma Arc ◽

High Iron Content ◽

High Iron ◽

Fe Alloys ◽

Arc Heating ◽

Solid Liquid

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A Study of Porous Slag with Plasma Arc Melting

Advances in Science and Technology ◽

10.4028/www.scientific.net/ast.45.2224 ◽

2006 ◽

Vol 45 ◽

pp. 2224-2228

Author(s):

Shuang Shii Lian ◽

Chih Kang Chang ◽

Chin Ching Tzeng

Keyword(s):

Pore Formation ◽

Plasma Arc ◽

Laboratory Plasma ◽

Arc Melting ◽

The Future ◽

Foam Slag ◽

Plasma Melting ◽

Arc Heating

The slag from steel plants or incinerators was tried to be recycled and be reused as foam materials through plasma arc melting. The study was intended to investigate the making of foam slag with laboratory plasma melting facilities. The investigated materials consisted of different mixtures of Al2O3、SiO2 、FetO、CaO and Na2O, with the fluxes that were necessary to examine the capability of pore-formation in the solidified ingots. It has been found that the foam slag could be obtained with the proper compositions and conditions of arc heating. The dimensions and distributions of pores were studied and correlated with the temperatures and compositions of slag. The results showed that the sizes of pores inside the solidified ingots were in the range of 1~5 mm, and the thickness of slag was around 20 mm. As to the distributions of the pores in the ingots of slag, further improvement would be needed in the future.

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Survey of CO2 Radiation Experimental Data in Relation with Planetary Entry

Galaxies ◽

10.3390/galaxies9010015 ◽

2021 ◽

Vol 9 (1) ◽

pp. 15

Author(s):

Philippe Reynier

Keyword(s):

Experimental Data ◽

Shock Tube ◽

Experimental Results ◽

Plasma Radiation ◽

Plasma Arc ◽

Expansion Tube ◽

Plasma Flows ◽

Ir Radiation ◽

Co2 Plasma ◽

Future Test

This paper focuses on a survey of experimental data related to radiation into CO2 plasma flows, which are encountered during Mars and Venus entries. The review emphasizes on VUV and IR radiation, since recent experimental efforts has been devoted to these wavelength ranges since they contribute mostly to CO2 plasma radiation. The main objective of the study is to identify the most attractive datasets for future crosscheck comparisons with the results obtained during future test campaigns with ESTHER shock-tube. The survey accounts for the results obtained in shock-tubes, expansion tube and plasma arc-jets for Mars and Venus test campaigns. The experimental results obtained for propulsion related studies have also been considered.

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Plasma arc heating for hot machining

International Journal of Machine Tool Design and Research ◽

10.1016/0020-7357(81)90005-6 ◽

1981 ◽

Vol 21 (2) ◽

pp. 143-152 ◽

Cited By ~ 8

Author(s):

B.K. Hinds ◽

S.M. De Almeida

Keyword(s):

Plasma Arc ◽

Hot Machining ◽

Arc Heating

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Transient Melting of a Metal Plate by a Penetrating Plasma Arc

Journal of Heat Transfer ◽

10.1115/1.3248105 ◽

1987 ◽

Vol 109 (2) ◽

pp. 463-469 ◽

Cited By ~ 7

Author(s):

Y. F. Hsu ◽

B. Rubinsky

Keyword(s):

Fluid Flow ◽

Melting Process ◽

Metal Plate ◽

Plasma Arc ◽

First Order ◽

Plasma Energy ◽

Method Of Solution ◽

Metal Processing ◽

Low Efficiency ◽

Arc Heating

A study was performed on the heat transfer and the fluid flow during transient melting of a metal plate subjected to stationary, penetrating plasma-arc heating. An integral method of solution was used for this simplified, first-order simulation of plasma-arc metal processing. The results of the study reveal the importance of the workpiece thickness, plasma-penetrating hole size, and gravity on the melting process and the molten fluid flow. The study also shows that plasma-arc metal processing seems to be a low-efficiency manufacturing process with only 7 percent of the plasma energy contributing to the melting.

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