Thermal plasma processing of spherical ZnO nano powders

2019 ◽  
Author(s):  
S. Jayakumar ◽  
J. Poongkothai ◽  
G. K. D. Prasanna Venkatesan ◽  
P. Sakthivel ◽  
Kamalraj Subramaniam
Keyword(s):  
Thermal Plasma ◽  
Plasma Processing ◽  
Thermal Plasma Processing

Adaptive Control for NOx Removal in Non-Thermal Plasma Processing

2007 ◽  
Vol 4 (5) ◽  
pp. 556-562 ◽  
Author(s):  
Peter A. Gorry ◽  
J. Christopher Whitehead ◽  
Jinhui Wu
Keyword(s):  
Adaptive Control ◽  
Thermal Plasma ◽  
Plasma Processing ◽  
Nox Removal ◽  
Thermal Plasma Processing ◽  
Non Thermal Plasma

Characterization and in vitro-bioactivity of natural hydroxyapatite based bio-glass–ceramics synthesized by thermal plasma processing

2010 ◽  
Vol 36 (6) ◽  
pp. 1757-1766 ◽  
Author(s):  
C.P. Yoganand ◽  
V. Selvarajan ◽  
Valeria Cannillo ◽  
Antonella Sola ◽  
E. Roumeli ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Glass Ceramics ◽  
Plasma Processing ◽  
In Vitro Bioactivity ◽  
Thermal Plasma Processing ◽  
Natural Hydroxyapatite

High-concentration niobium (V) doping into TiO2 nanoparticles synthesized by thermal plasma processing

2011 ◽  
Vol 26 (5) ◽  
pp. 658-671 ◽  
Author(s):  
Chenning Zhang ◽  
Masashi Ikeda ◽  
Tetsuo Uchikoshi ◽  
Ji-Guang Li ◽  
Takayuki Watanabe ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Thermal Plasma ◽  
Plasma Processing ◽  
High Concentration ◽  
Thermal Plasma Processing ◽  
Image Position

Abstract

Materials Processing With Thermal Plasmas

MRS Bulletin ◽  
1996 ◽  
Vol 21 (8) ◽  
pp. 65-68 ◽  
Author(s):  
Maher Boulos ◽  
Emil Pfender
Keyword(s):  
Thermal Plasma ◽  
Heavy Particle ◽  
Plasma Processing ◽  
Industrial Applications ◽  
Thermal Plasmas ◽  
Materials Processing ◽  
New Materials ◽  
Exciting Field ◽  
Thermal Plasma Processing ◽  
Plasma State

Thermal plasmas in which the plasma state approaches local thermodynamic equilibrium may be produced by high-intensity arcs (current I > 100 A) or by radio-frequency (rf) discharges at high-power densities and at pressures exceeding 10 kPa (0.1 atm). In such plasmas, electron and heavy-particle temperatures are identical, and particle densities are only a function of the temperature (chemical equilibrium).Thermal-plasma technology has passed through a drastic transition stage from primarily space-related activities in the 1960s to a more and more materials-oriented focus in the 1980s and 1990s, and thermal-plasma processing of materials is now attracting increasing interest for industrial applications.Thermal-plasma processing of materials however must be viewed in the context of much broader technology trends, some of which are visible today. There is no question that materials and materials processing will be one of the most important technical issues as we approach the turn of the century. This trend will not be restricted to the development of new materials but will also include the refining of materials, the conservation of materials (by hard facing, coating, etc.), and the development of new processing routes that are more energy-efficient, more productive, and less damaging to our environment. Thermal-plasma processing is already playing an important role in these developments. Its potential for developing new materials-related technologies is increasingly recognized, and many research laboratories all over the world are engaged in advancing the frontiers of our knowledge in this exciting field. As a result of these efforts, thermal-plasma processing has emerged as a powerful technology that is finding numerous industrial applications.

Experimental Study of Thermal Plasma Processing Waste Circuit Boards

2013 ◽  
Vol 652-654 ◽  
pp. 1553-1561 ◽  
Author(s):  
Song Bai Wang ◽  
Chang Ming Cheng ◽  
Wei Lan ◽  
Xian Hui Zhang ◽  
Dong Ping Liu ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Molten Slag ◽  
Plasma Processing ◽  
Experimental Result ◽  
Exhaust Gas ◽  
Circuit Boards ◽  
Processing Waste ◽  
Gas Treatment ◽  
Thermal Plasma Processing ◽  
Co Gas

This study aimed to that waste circuit boards in batches were incinerated by thermal plasma. Firstly, the working principle of plasma incinerator and the exhaust gas treatment main process were introduced, then, the experimental results was analyzed and discussed. Due to the thermal plasma processing waste incineration furnace has high temperature (1200 0C above), all the organic ingredients in waste circuit boards, including dioxin, can be decomposed completely in a few milliseconds, no showing the secondary pollution and no producing furans and other carcinogens. In addition, after main exhaust gas (CO, NO) concentration change with time was carefully tracked, it was found that a large amount of CO gas was produced and NO gas concentration was within national safety limits during experiment. Although 44.4 kg sample was incinerated, more than 1 kg of small pieces of metal like Copper was obtained from the cooling molten slag. Finally, it was obvious that the volume and weight of molten slag was far less than the ones of sample. The experimental result has important practical significance for protecting the environment, obtaining more CO gas resource and retrieving a variety of rare metals (such as Gold, Copper, Silver, Platinum, etc.).

Thermal Plasma Processing for the Production of Pig Iron from Various Sources

2009 ◽  
Vol 28 (1-2) ◽  
pp. 1-8 ◽  
Author(s):  
K. Jayansankar, ◽  
S. Mohapatra, ◽  
S.K. Routray, ◽  
J.L. Gumaste, ◽  
P.S. Mukherjee,
Keyword(s):  
Thermal Plasma ◽  
Plasma Processing ◽  
Pig Iron ◽  
Thermal Plasma Processing
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