论文信息 - Spectral and directional emittance of alumina at 823 K

Spectral and directional emittance of alumina at 823 K

Spectral–directional emittance measurements of aluminum oxide (99.5% pure), in air, were performed at 823 K using an apparatus comprised of a Fourier Transform Infrared (FTIR) spectrometer, a blackbody radiating cavity (hohlraum), and a sample holder which allows directional measurements. The data cover a wide spectral range between 2 and 25 μm, and a directional range from a surface normal to a 72° polar angle. The aluminum oxide sample used in the experiment had a nominal surface roughness of 1 μm determined by a profilometer. Directional emittance shows no departure from dielectric behavior.

Peter D. Jones | G. Teodorescu | P. D. Jones

[1] C. P. Randolph,et al. The Emissivity of Oxidized Metallic Surfaces , 1913 .

[2] Frank P. Incropera,et al. Fundamentals of Heat and Mass Transfer , 1981 .

[3] Design and testing of a high‐temperature emissometer for porous and particulate dielectrics , 1986 .

[4] David G. McLeod,et al. Spectral-directional emittance of oxidized copper , 1996 .

[5] Michael F. Modest,et al. CHAPTER 22 – INVERSE RADIATIVE HEAT TRANSFER , 2003 .

[6] Spectral-Directional Emittance of CuO at High Temperatures , 2006 .

[7] Peter D. Jones,et al. Spectral-Directional Emittance of 99.99% Aluminum, Thermally Oxidized Below Its Melting Point , 2006 .