发明名称 |
Evaporation type getter device using a getter material and electron tube using the device |
摘要 |
<p>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.</p> |
申请公布号 |
EP1859859(A1) |
申请公布日期 |
2007.11.28 |
申请号 |
EP20050704368 |
申请日期 |
2005.01.27 |
申请人 |
KABUSHIKI KAISHA TOSHIBA;TOSHIBA MATERIALS CO., LTD. |
发明人 |
HORIE, HIROMICHI;FUKUDA, YOSHIYUKI;KATO, HIROMASA;NAKASHIMA, NOBUAKI;MAKINO, YASUHISA |
分类号 |
B01J20/02;H01J7/18;H01J29/94 |
主分类号 |
B01J20/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|