JPS5462488A - Nuclear fuel element - Google Patents

Nuclear fuel element

Info

Publication number
JPS5462488A
JPS5462488A JP12759877A JP12759877A JPS5462488A JP S5462488 A JPS5462488 A JP S5462488A JP 12759877 A JP12759877 A JP 12759877A JP 12759877 A JP12759877 A JP 12759877A JP S5462488 A JPS5462488 A JP S5462488A
Authority
JP
Japan
Prior art keywords
pellets
cladding tube
fuel
stress
parts
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
JP12759877A
Other languages
Japanese (ja)
Inventor
Masafumi Nakatsuka
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 JP12759877A priority Critical patent/JPS5462488A/en
Publication of JPS5462488A publication Critical patent/JPS5462488A/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

Abstract

PURPOSE:To heighten the reliablity of a fuel element, by means of reducing the generation of stress corrosion cracking of a cladding tube due to pellets cracking by thermal stress by setting up concaved parts with grinding parts around the outer circumference of nuclear fuel pellets. CONSTITUTION:Concaved parts 71 of a range of the depth delta of 0.1delta/r<0.3 (r=a radius of pellt) with grinding parts 70 are bored on the outer circumferent surface of fuel pellets 2 which are formed and sintered by a normal process. Even if crackings may be generated to the pellets 2 by the thermal stress when the reactor is in operation, the pellets 2 and the cladding tube are contacted by the surface, and the local stress exerted on the cladding tube is reduced, and the generation of stress corrosion cracking is prevented, thereby the reliabilty of the fuel elements is heightened.
JP12759877A 1977-10-26 1977-10-26 Nuclear fuel element Pending JPS5462488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12759877A JPS5462488A (en) 1977-10-26 1977-10-26 Nuclear fuel element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12759877A JPS5462488A (en) 1977-10-26 1977-10-26 Nuclear fuel element

Publications (1)

Publication Number Publication Date
JPS5462488A true JPS5462488A (en) 1979-05-19

Family

ID=14964035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12759877A Pending JPS5462488A (en) 1977-10-26 1977-10-26 Nuclear fuel element

Country Status (1)

Country Link
JP (1) JPS5462488A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009503463A (en) * 2005-07-29 2009-01-29 アレヴァ エンペー ゲゼルシャフト ミット ベシュレンクテル ハフツング Pressurized water reactor control rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009503463A (en) * 2005-07-29 2009-01-29 アレヴァ エンペー ゲゼルシャフト ミット ベシュレンクテル ハフツング Pressurized water reactor control rod

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