Автор |
J Mishin |
Автор |
M Vardelle |
Автор |
J Lesinski |
Автор |
P Fauchais |
Дата выпуска |
1987-06-01 |
dc.description |
A two-colour pyrometer was developed for the measurement of the surface temperature of particles in flight in a DC plasma-spraying jet which is characterised by high temperatures (up to 10000 K), high velocities (more than 500 ms<sup>-1</sup>) and very steep radial temperature gradients (3000 K mm<sup>-1</sup>) and velocity gradients (300 m s<sup>-1</sup> mm<sup>-1</sup>). Measurements of surface temperature have been made on metallic (Ni) or ceramic powders (ZrO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>) with mean diameter of 10-100 mu m. The surface temperatures of the particles range from 2000-4000 K and their velocities (measured simultaneously by laser anemometry) are from 50-300 m s<sup>-1</sup>. One of the major difficulties of pyrometry in such flows is the plasma radiation, especially in the jet core. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Two-colour pyrometer for the statistical measurement of the surface temperature of particles under thermal plasma conditions |
Тип |
paper |
DOI |
10.1088/0022-3735/20/6/008 |
Print ISSN |
0022-3735 |
Журнал |
Journal of Physics E: Scientific Instruments |
Том |
20 |
Первая страница |
620 |
Последняя страница |
625 |
Аффилиация |
J Mishin; Equipe Thermodynamique & Plasma, Limoges Univ., France |
Аффилиация |
M Vardelle; Equipe Thermodynamique & Plasma, Limoges Univ., France |
Аффилиация |
J Lesinski; Equipe Thermodynamique & Plasma, Limoges Univ., France |
Аффилиация |
P Fauchais; Equipe Thermodynamique & Plasma, Limoges Univ., France |
Выпуск |
6 |