Lead-free glass material for use in sealing and, sealed article and method for sealing using the same

Abstract

Provided with a glass composition including a network-former oxide composed of any one of or both of B 2 O 3 and V 2 O 5 of 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient. The present invention is a glass material for use in sealing, which is of lead-free series, can be used for sealing at a low processing temperature and within a wide temperature range, has a low thermal expansion coefficient, superior adhesion, superior sealing processability, superior adherence, superior chemical stability, superior strength and the like and comprises sufficient practical performance to substitute for lead glass.

1 - 11 . (canceled)  
   
   
       12 . A glass-based, ceramic-based or metal-based sealed matter having an opening or a joint sealed with the lead-free glass material for use in sealing, said lead-free glass material having a glass composition including a network-former oxide composed of any one of or both of B 2 O 3  and V 2 O 5  of 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient.  
   
   
       13 . The sealed matter according to  claim 12 , which is a vacuum package with an inside thereof being kept in a high vacuum.  
   
   
       14 - 15 . (canceled)