| 摘要 |
PROBLEM TO BE SOLVED: To provide a glass composition in which foaming due to a reaction with a nitride film is suppressed.SOLUTION: A glass composition contains, in mole percentage based on oxides, TeO30-90%, ZnO 0-60%, BO0-24%, LiO+NaO+KO 0-8%, AlO0-8%, BiO0-17%, VO0-30%, and SiO0-10% and does not substantially contain any of components which includes F, Pb, Cd, W, Mo, Ag, or Gd. |
