FR2040975A5 - Cold cathode for the production of field - emission effects - Google Patents

Cold cathode for the production of field - emission effects

Info

Publication number
FR2040975A5
FR2040975A5 FR6945556A FR6945556A FR2040975A5 FR 2040975 A5 FR2040975 A5 FR 2040975A5 FR 6945556 A FR6945556 A FR 6945556A FR 6945556 A FR6945556 A FR 6945556A FR 2040975 A5 FR2040975 A5 FR 2040975A5
Authority
FR
France
Prior art keywords
production
field
cold cathode
emission effects
pref
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.)
Expired
Application number
FR6945556A
Other languages
French (fr)
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of FR2040975A5 publication Critical patent/FR2040975A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B21/00—Unidirectional solidification of eutectic materials
    • C30B21/02—Unidirectional solidification of eutectic materials by normal casting or gradient freezing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid Thermionic Cathode (AREA)
  • Filtering Materials (AREA)
  • ing And Chemical Polishing (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The cathode consists of a cast alloy base and parallel rods with small cross-sections projecting from it. The solid base serves as a matrix cauterized to the required depth. The alloy is pref. a compound corresponding to the eutectic mixture or having a eutectic composition plus-or-minus 10%, and is pref. non-metallic, Ni-W or Ni-Al-Cr.
FR6945556A 1968-12-30 1969-12-30 Cold cathode for the production of field - emission effects Expired FR2040975A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78783668A 1968-12-30 1968-12-30

Publications (1)

Publication Number Publication Date
FR2040975A5 true FR2040975A5 (en) 1971-01-22

Family

ID=25142655

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6945556A Expired FR2040975A5 (en) 1968-12-30 1969-12-30 Cold cathode for the production of field - emission effects

Country Status (3)

Country Link
JP (1) JPS494142B1 (en)
DE (1) DE1964991A1 (en)
FR (1) FR2040975A5 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207300B1 (en) * 1985-06-04 1989-11-08 Herbert E. Dipl.-Ing. Erkens Process for making ceramic-oxide products with a high ratio surface to mass and a high strength
DE3804555A1 (en) * 1988-02-13 1989-08-24 Raymond A Fa Plug-in bolt with retaining plate
DE9302009U1 (en) * 1993-02-12 1993-04-22 ABB Patent GmbH, 6800 Mannheim Sheet metal component

Also Published As

Publication number Publication date
DE1964991A1 (en) 1970-07-09
JPS494142B1 (en) 1974-01-30

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Legal Events

Date Code Title Description
ST Notification of lapse