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Surface Temperature Measurement of Semi-Transparent Ceramics by Long-Wavelength Pyrometry
Oleh:
Incropera, Frank P.
;
Shin, Yung C.
;
Pfefferkorn, Frank E.
Jenis:
Article from Bulletin/Magazine
Dalam koleksi:
Journal of Heat Transfer vol. 125 no. 1 (Feb. 2003)
,
page 48-56.
Topik:
ceramics
;
surface
;
temperature measurement
;
semi - transparent
;
ceramics
;
long - wavelength
;
pyrometry
Ketersediaan
Perpustakaan Pusat (Semanggi)
Nomor Panggil:
JJ90.6
Non-tandon:
1 (dapat dipinjam: 0)
Tandon:
tidak ada
Lihat Detail Induk
Isi artikel
A procedure using a long - wavelength pyrometer is developed for the measurement of surface temperatures on materials that are semitransparent at shorter wavelengths, and specific application is made to a dense zirconia ceramic (Mg - PSZ) undergoing laser - assisted machining (LAM). The pyrometer operates in a waveband between 11 and 14 µm, and a detailed description of measurement uncertainties is provided. The largest uncertainties relate to knowledge of the surface emissivity and the large temperature gradients generated by the LAM process. Repeatability of the measurements is demonstrated, and a parametric study of three LAM parameters reveals expected trends.
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