JPS5472399A - Nuclear fuel element - Google Patents

Nuclear fuel element

Info

Publication number
JPS5472399A
JPS5472399A JP13947577A JP13947577A JPS5472399A JP S5472399 A JPS5472399 A JP S5472399A JP 13947577 A JP13947577 A JP 13947577A JP 13947577 A JP13947577 A JP 13947577A JP S5472399 A JPS5472399 A JP S5472399A
Authority
JP
Japan
Prior art keywords
pellet
excess
oxgen
powder
zro
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
JP13947577A
Other languages
Japanese (ja)
Inventor
Katsumi Une
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 JP13947577A priority Critical patent/JPS5472399A/en
Publication of JPS5472399A publication Critical patent/JPS5472399A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: To subject the inner surface of a cladding tube to be always coated by a thin film of ZrO2 during irradiation, by means of making oxgen to excess the chemical composition of the surface of an UO2 pellet.
CONSTITUTION: The surface layer 1 of an UO2 pellet is made into the chemical composition of excess of oxygen by means of compression moulding by entering the powder of UO2+x at the outside and the powder of UO2-x at the innside, and of compression moulding thereafter when the UO2 powder is compression moulded. The degree of excess of oxygen is subjected the ratio of oxgen against U to be held at the range from 2.05 to 2.25. And at this time, the thickness l of the surface layer of a pellet, the formula l ≤ r x 0.04 / 10 (O/U-2)(where, r is a radius of a pellet, and O/U is a ratio of O/U comparison of the surface layers) should be fulfilled. By such means, the excess oxgen on the surface of the pellet reacts with the Zircalloy coated tube, the corrosion is prevented by means of coating the inner surface of the cladding tube by the coating film of ZrO2.
COPYRIGHT: (C)1979,JPO&Japio
JP13947577A 1977-11-22 1977-11-22 Nuclear fuel element Pending JPS5472399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13947577A JPS5472399A (en) 1977-11-22 1977-11-22 Nuclear fuel element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13947577A JPS5472399A (en) 1977-11-22 1977-11-22 Nuclear fuel element

Publications (1)

Publication Number Publication Date
JPS5472399A true JPS5472399A (en) 1979-06-09

Family

ID=15246101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13947577A Pending JPS5472399A (en) 1977-11-22 1977-11-22 Nuclear fuel element

Country Status (1)

Country Link
JP (1) JPS5472399A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021527802A (en) * 2018-06-21 2021-10-14 ウェスティングハウス エレクトリック スウェーデン アーベー Fuel pellet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021527802A (en) * 2018-06-21 2021-10-14 ウェスティングハウス エレクトリック スウェーデン アーベー Fuel pellet

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