公开(公告)号：US3480823A

公开(公告)日：1969-11-25

申请号：US3480823D

申请日：1966-08-12

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： CHEN CHENG-LIN

IPC: C04B37/00 ,  C04B37/02 ,  H01J5/20

CPC classification number: C04B37/025 ,  C04B37/005 ,  C04B2235/30 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2235/76 ,  C04B2237/064 ,  C04B2237/09 ,  C04B2237/122 ,  C04B2237/343 ,  C04B2237/52 ,  C04B2237/592 ,  C04B2237/62 ,  C04B2237/74 ,  C04B2237/76 ,  C04B2237/765 ,  C04B2237/80

公开(公告)号：US3588573A

公开(公告)日：1971-06-28

申请号：US3588573D

申请日：1967-12-29

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： CHEN CHENG-LIN ,  ZOLLWEG ROBERT J ,  ENNULAT DIETRICH F

IPC: C04B35/111 ,  C04B37/00 ,  C04B37/02 ,  H01J5/20 ,  H01J61/00 ,  H01J61/36

CPC classification number: C04B37/025 ,  C04B35/111 ,  C04B37/005 ,  C04B2237/066 ,  C04B2237/09 ,  C04B2237/30 ,  C04B2237/343 ,  C04B2237/403 ,  C04B2237/52 ,  C04B2237/62 ,  C04B2237/708 ,  C04B2237/765 ,  C04B2237/80 ,  C04B2237/88 ,  H01J5/20 ,  H01J2893/0037

Abstract: A FAMILY OF SEALING COMPOSITIONS FOR SEALING REFRACTORY METAL END CLOSURE MEMBERS TO TUBULAR POLYCRYSTALLINE ALUMINA ENVELOPES. THE SEALING COMPOSITIONS COMPRISE A MIXTURE OF ALUMINUM OXIDE AND ONE OR MORE RARE-EARTH OXIDES SELECTED FROM THE GROUP CONSISTING OF YTRIUM OXIDE, NEODYMIUM OXIDE, SAMARIUM OXIDE, GADOLINIUM OXIDE, EUROPIUM OXIDE, DYSPROSIUM OXIDE, PRASEODYMIUM OXIDE, TERBIUM OXIDE, HOLMIUM OXIDE, ERBIUM OXIDE, THULIUM OXIDE, YTTERBIUM OXIDE, AND LUTETIUM OXIDE IN NEARLY EUTECTIC PROPORTIONS.