| 摘要 |
The invention relates to a high-pressure discharge lamp having a discharge vessel ( 10 ) with a ceramic wall ( 1 ) which is closed at one end by a plug. The plug ( 2 ) is provided with an electrode ( 3 ) arranged in the discharge vessel ( 10 ). The ceramic wall ( 1 ) and the plug ( 2 ) are jointed by a fusion joint ( 4 ). The fusion joint ( 4 ) comprises an alloy comprising substantially molybdenum and aluminum. Preferably, the fusion joint ( 4 ) comprises a material selected from the group formed by Al<SUB>8</SUB>Mo<SUB>3</SUB>, Al<SUB>63</SUB>Mo<SUB>37</SUB>, Al<SUB>3</SUB>Mo<SUB>37</SUB>, AlMo, AlMo<SUB>3 </SUB>and combinations of said materials. Preferably, the plug ( 2 ) comprises a material selected from the group formed by molybdenum, 1 tungsten and combinations of said materials. Preferably, the ceramic wall ( 1 ) comprises aluminum nitride. According to the invention, the plug ( 2 ) has a high corrosion resistance.
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