JPS5546417A - Sintered cathode - Google Patents

Sintered cathode

Info

Publication number
JPS5546417A
JPS5546417A JP11929478A JP11929478A JPS5546417A JP S5546417 A JPS5546417 A JP S5546417A JP 11929478 A JP11929478 A JP 11929478A JP 11929478 A JP11929478 A JP 11929478A JP S5546417 A JPS5546417 A JP S5546417A
Authority
JP
Japan
Prior art keywords
heat resistant
unit
powder
temperature
oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11929478A
Other languages
Japanese (ja)
Inventor
Shiichiro Yoshizaki
Shoji Makuuchi
Tadashi Morita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11929478A priority Critical patent/JPS5546417A/en
Publication of JPS5546417A publication Critical patent/JPS5546417A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a cathode with a less evaporation and dispersion of the electron radiant material, by such method that, after processing a firing to the mixed powder between electron radiant material and heat resistant material, a granulation is made into a granular unit, with surfaces of this granular unit caated by the heat resistant material, after a process of pressure forming, to make a sintering.
CONSTITUTION: A mixing is made between the powder of more than one kind of electron radiant material like oxide, carbonation, etc. of Ba, Ca, Sr and the powder of more than one kind of heat resistant metal, heat resistant oxide of W, Mo, Ni, ZrO2, Al2O3, ThO2, etc., and a temperature in the furnace is gradually raised with a firing processed at a temperature of about 1200W1800°C. Subsequently, this is finely crushed in the organic binder, then granulated into a granular unit, and to this unit are added and mixed more than one kind of heat resistant metal and heat resistant oxide powder and the binder, to construct a coating of the heat resistant material. To this compound granular unit is inserted an electrode bar 2 to be performed a pressure forming, with a sintering processed at temperature of about 1150 to 1750°C in a vacuum or reducing atmospheric furnace, to obtain a sintered unit 1.
COPYRIGHT: (C)1980,JPO&Japio
JP11929478A 1978-09-29 1978-09-29 Sintered cathode Pending JPS5546417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11929478A JPS5546417A (en) 1978-09-29 1978-09-29 Sintered cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11929478A JPS5546417A (en) 1978-09-29 1978-09-29 Sintered cathode

Publications (1)

Publication Number Publication Date
JPS5546417A true JPS5546417A (en) 1980-04-01

Family

ID=14757839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11929478A Pending JPS5546417A (en) 1978-09-29 1978-09-29 Sintered cathode

Country Status (1)

Country Link
JP (1) JPS5546417A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6825613B2 (en) 2002-09-12 2004-11-30 Colour Star Limited Mercury gas discharge device
JP7193676B1 (en) * 2022-10-25 2022-12-20 株式会社オーク製作所 discharge lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6825613B2 (en) 2002-09-12 2004-11-30 Colour Star Limited Mercury gas discharge device
JP7193676B1 (en) * 2022-10-25 2022-12-20 株式会社オーク製作所 discharge lamp

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