Title:
蒸発型ゲッタ装置およびそれを用いた電子管
Document Type and Number:
Japanese Patent JP5049775
Kind Code:
B2
Abstract:
The present invention provides a getter material configured by a pressed powder mixture comprising Ba-Al alloy powder and Ni powder, wherein when the pressed powder mixture is heated in a vacuum atmosphere or an inert gas atmosphere, a temperature at which an exothermic reaction starts is ranging from 750°C to 900°C. According to this getter material, since the temperature at which the pressed powder mixture starts the exothermic reaction is set within a range from 750°C to 900°C, there can be provided a getter material and an evaporation type getter device capable of suitably controlling an evaporation amount of getter components under a stable condition, and is excellent in responsiveness because a time ranging from a starting time of heating the getter material to a starting time of evaporation of the getter components can be shortened. In addition, the metal container to be filled with the getter material is free from deformation and melting, and a heat-evaporation process time of the getter material can be shortened, so that there can be provided the evaporation type getter device excellent in responsiveness because a time required for the electron tube to attain to a predetermined vacuum degree can be also shortened.
Inventors:
Hiromichi Horie
Fukuda Etsuyuki
Hiromasa Kato
Nobuaki Nakajima
Makino Yasuhisa
Fukuda Etsuyuki
Hiromasa Kato
Nobuaki Nakajima
Makino Yasuhisa
Application Number:
JP2007500401A
Publication Date:
October 17, 2012
Filing Date:
January 27, 2005
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Materials Co., Ltd.
Toshiba Materials Co., Ltd.
International Classes:
H01J29/94; B01J20/02; F04B37/02; H01J7/18
Domestic Patent References:
| JPH06103932A | 1994-04-15 | |||
| JP2003168365A | 2003-06-13 |
Attorney, Agent or Firm:
Patent business corporation Tokyo International Patent Office