Изменение нормальной спектральной излучательной способности при плавлении элементов

An experimental and computational study of the normal spectral emissivity during melting of various metals was carried out, the installation scheme and the method of conducting experiments were given. The possibilities of the electromagnetic theory for describing the dependence of the behavior of the normal spectral emissivity of metals and semimetals are evaluated.

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MODELING THE NORMAL SPECTRAL EMISSIVITY OF BRASS H62 AT 800–1100 K DURING OXIDE LAYER GROWTH

Heat Transfer Research ◽

10.1615/heattransres.2018019355 ◽

2018 ◽

Vol 49 (15) ◽

pp. 1445-1458

Author(s):

Deheng Shi ◽

Fenghui Zou ◽

Zunlue Zhu ◽

Jinfeng Sun

Keyword(s):

Oxide Layer ◽

Spectral Emissivity ◽

Layer Growth ◽

Normal Spectral Emissivity

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Study of the normal spectral emissivity of tungsten between 170 and 500 °C by a single-wavelength infrared thermometer

Fusion Engineering and Design ◽

10.1016/j.fusengdes.2021.112848 ◽

2021 ◽

Vol 173 ◽

pp. 112848

Author(s):

Shuangbao Shu ◽

Ziyi Wang ◽

Huajun Liang ◽

Yuzhong Zhang ◽

Chengliang Pan ◽

...

Keyword(s):

Spectral Emissivity ◽

Normal Spectral Emissivity ◽

Infrared Thermometer

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Investigation of the effects of Ni-based alloy K465 on the normal spectral emissivity during oxidation

Infrared Physics & Technology ◽

10.1016/j.infrared.2016.08.008 ◽

2016 ◽

Vol 78 ◽

pp. 214-222 ◽

Cited By ~ 2

Author(s):

Shunan Zhao ◽

Xunfeng Li ◽

Xiaoming Zhou ◽

Keyong Cheng ◽

Xiulan Huai

Keyword(s):

Spectral Emissivity ◽

Normal Spectral Emissivity

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A dynamic technique for measuring normal spectral emissivity of electrically conducting solids at high temperatures with a high-speed spatial scanning pyrometer

International Journal of Thermophysics ◽

10.1007/bf00505679 ◽

1993 ◽

Vol 14 (5) ◽

pp. 1109-1114 ◽

Cited By ~ 2

Author(s):

A. Cezairliyan ◽

A. P. Miiller

Keyword(s):

High Temperatures ◽

High Speed ◽

Spectral Emissivity ◽

Normal Spectral Emissivity ◽

Electrically Conducting ◽

Dynamic Technique

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Normal spectral emissivity of liquid Al-Ti binary alloys

High Temperatures-High Pressures ◽

10.32908/hthp.v48.783 ◽

2020 ◽

Vol 48 (5-6) ◽

pp. 423-438

Author(s):

JUERGEN BRILLO ◽

JOHANNA J. WESSING ◽

HIDEKAZU KOBATAKE ◽

HIROYUKI FUKUYAMA

Keyword(s):

Temperature Dependence ◽

Reasonable Agreement ◽

Spectral Emissivity ◽

Liquid System ◽

Normal Spectral Emissivity ◽

Binary Liquid System ◽

Binary Liquid ◽

Electrical Resistivities ◽

Existing Data ◽

Good Agreement

The normal spectral emissivity ε of four compositions in the Al-Ti binary liquid system was measured in dependence of the wavelength and temperature. It was found that all compositions show negligible temperature dependence. At a wavelength of 940 nm, the emissivity amounts to 0.37, 0.40, 0.32, and 0.31 for Ti, Al20Ti80, Al50Ti50, and Al70Ti30, respectively. The dependence of the emissivity on composition is in good agreement with literature data of binary and multi-component Al-Ti-based alloys. Using the classical Drude model, electrical resistivities are predicted for the Al-Ti system from the measured emissivities. Comparison with existing data from literature for Al show reasonable agreement.

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