TY - JOUR
T1 - High-intensity discharge lamp with Mo-SiO2 functionally graded material
AU - Umemoto, Ayumu
AU - Hayashi, Koichi
AU - Nakashima, Kunihiko
AU - Saito, Noritaka
AU - Kaneko, Kenji
AU - Ogi, Keisaku
PY - 2006/3
Y1 - 2006/3
N2 - We show the invention of the new type of hermetically sealed high-intensity discharge lamps, made of Mo-SiO2 functionally graded material (FGM) as an electrode and a sealing component. In the case of high-intensity discharge lamps with Mo-SiO2 FGM (FGM lamp), the thermal expansion coefficient between Mo and SiO2 is functionally graded so that it tolerates a large number of heating cycles, with no cooling system required. Furthermore, lamps survive without breakage. The W electrode is totally separated from the lamp envelope by the FGM, so that no leakage of the luminous elements or gases takes place, when a large gas pressure exists inside a lamp.
AB - We show the invention of the new type of hermetically sealed high-intensity discharge lamps, made of Mo-SiO2 functionally graded material (FGM) as an electrode and a sealing component. In the case of high-intensity discharge lamps with Mo-SiO2 FGM (FGM lamp), the thermal expansion coefficient between Mo and SiO2 is functionally graded so that it tolerates a large number of heating cycles, with no cooling system required. Furthermore, lamps survive without breakage. The W electrode is totally separated from the lamp envelope by the FGM, so that no leakage of the luminous elements or gases takes place, when a large gas pressure exists inside a lamp.
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U2 - 10.1111/j.1551-2916.2005.00835.x
DO - 10.1111/j.1551-2916.2005.00835.x
M3 - Article
AN - SCOPUS:33644683200
SN - 0002-7820
VL - 89
SP - 1133
EP - 1135
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 3
ER -