Title:
NONEVAPORATION-TYPE GETTER MATERIAL
Document Type and Number:
Japanese Patent JPH02290941
Kind Code:
A
Abstract:
PURPOSE: To obtain an alloy having excellent gas absorption characteristics and to permit the holding of vacuum in the atmosphere of high getter temp. by specifying Fe, Ni, La, Ce, Pr, Nd and Sm.
CONSTITUTION: The nonevaporation-type getter material is formed from the compsn. constituted of, by weight, 5 to 50% Fe and the balance rare earth metals or, in addition to this, of 1 to 15% Ni. The above rare earth metals are selected from La, Ce, Pr, Nd and Sm and form stable hydride. At the time of forming the alloy of a mixture of the above rare earth metals with Fe or Ni, fine multilayered structure is formed and sufficient gas absorption can be obtd.
Inventors:
MURAKI MINEO
SUZUKI HIDEO
NOHARA KIYOHIKO
SUZUKI HIDEO
NOHARA KIYOHIKO
Application Number:
JP25072889A
Publication Date:
November 30, 1990
Filing Date:
September 28, 1989
Export Citation:
Assignee:
KAWASAKI STEEL CO
International Classes:
C22C28/00; C22C38/00; H01J7/18; (IPC1-7): C22C28/00; C22C38/00; H01J7/18
Attorney, Agent or Firm:
Yoshio Kosugi