公开(公告)号：EP1492144A3

公开(公告)日：2007-08-08

申请号：EP04253123.6

申请日：2004-05-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Venugopal, Shankar Madras ,  Srivastava, Alok M. ,  Comanzo, Holly Ann ,  Midha, Vikas ,  Beers, William Winder ,  Ramachandran, Gopi Chandran ,  Adyam, Mukunda Srinivas

IPC: H01J1/14 ,  H01J61/06 ,  H01J9/04

CPC classification number: H01J1/146 ,  H01J1/14 ,  H01J61/0677 ,  H01J61/0737

Abstract: An electron emissive composition comprises a barium tantalate composition of the formula (Ba 1-x , Ca x , Sr p , D q ) 6 (Ta 1-y , W y , E t , F u , G v , Ca w ) 2 O (11 ± δ) where δ is an amount of about 0 to about -3; and wherein D is either an alkali earth metal ion or an alkaline earth ion; E, F, and G, are alkaline earth ions and/or transition metal ion; x is an amount of up to about 0.7; y is an amount of up to about 1; p and q are amounts of up to about 0.3; and t is an amount of about 0.05 to about 0.10, u is an amount of up to about 0.5, v is an amount of up to about 0.5 and w is an amount of up to about 0.25. A method for manufacturing an electron emissive composition comprises blending a barium tantalate composition with a binder; and sintering the barium tantalate composition with the binder at a temperature of about 1000°C to about 1700°C.

公开(公告)号：EP1492144A2

公开(公告)日：2004-12-29

申请号：EP04253123.6

申请日：2004-05-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Venugopal, Shankar Madras ,  Srivastava, Alok M. ,  Comanzo, Holly Ann ,  Midha, Vikas ,  Beers, William Winder ,  Ramachandran, Gopi Chandran ,  Adyam, Mukunda Srinivas

IPC: H01J1/14 ,  H01J61/06 ,  H01J9/04

CPC classification number: H01J1/146 ,  H01J1/14 ,  H01J61/0677 ,  H01J61/0737

Abstract: An electron emissive composition comprises a barium tantalate composition of the formula (Ba 1-x , Ca x , Sr p , D q ) 6 (Ta 1-y , W y , E t , F u , G v , Ca w ) 2 O (11 ± δ) where δ is an amount of about 0 to about -3; and wherein D is either an alkali earth metal ion or an alkaline earth ion; E, F, and G, are alkaline earth ions and/or transition metal ion; x is an amount of up to about 0.7; y is an amount of up to about 1; p and q are amounts of up to about 0.3; and t is an amount of about 0.05 to about 0.10, u is an amount of up to about 0.5, v is an amount of up to about 0.5 and w is an amount of up to about 0.25. A method for manufacturing an electron emissive composition comprises blending a barium tantalate composition with a binder; and sintering the barium tantalate composition with the binder at a temperature of about 1000°C to about 1700°C.

Abstract translation: 电子发射组合物包括式（Ba 1-x，Ca x，Sr p，D q）6（Ta 1-y，W y，E t，F u，G v，Ca w）2的钽酸钡组合物 O（11±'）其中'是约0至约-3的量; 并且其中D是碱土金属离子或碱土金属离子; E，F和G是碱土离子和/或过渡金属离子; x是高达约0.7的量; y最多可达1; p和q是高达约0.3的量; 并且t为约0.05至约0.10的量，u为至多约0.5的量，v为至多约0.5的量，w为至多约0.25的量。 制造电子发射组合物的方法包括将钡钽酸盐组合物与粘合剂混合; 并在约1000℃至约1700℃的温度下用粘合剂烧结钽酸钡组合物。