山口 篤憲
著者に関連した記事は13件です。
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第15回
過酷事故時の溶融デブリによるコンクリートの熱的 劣化とセラミックスの熱耐性に関する実験的研究
著者:
奈良林 直,（東工大）,晴山 隆仁,（北海道庁）,千葉 豪,（北海道大）,林 司,（中国電力）,今野 隆博,（日立GE),山口 篤憲,（保全学会）
発刊日:
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キーワードタグ:
alumina Concreate Core debris High temperature Magnesia-Carbon brick Severe Accidents Thermal deterioration Void ratio zirconia
奈良林 直,（東工大）,晴山 隆仁,（北海道庁）,千葉 豪,（北海道大）,林 司,（中国電力）,今野 隆博,（日立GE),山口 篤憲,（保全学会）
発刊日:
公開日:
キーワードタグ:
alumina Concreate Core debris High temperature Magnesia-Carbon brick Severe Accidents Thermal deterioration Void ratio zirconia
In Fukushima accident on 2011, molten core supposed to be leaked on the concreate floor in containment vessel. Development of small type of core catcher which can be installed in operating nuclear power plant is needed. In this investigation, the thermal deterioration of concreate and Magnesia-Carbon brick observed trough surface observation by microscope and measurement of compressive strength, weight reduction, and difference of void ratio. In addition, permeability measurement for burned concreate was op...
英字タイトル:
Study on Thermal Deterioration of Concreate and Thermal durability of Ceramics
英字タイトル:
Study on Thermal Deterioration of Concreate and Thermal durability of Ceramics
第5回
長期間使用した9Cr系鋼構造物の電気化学計測を用いたじん性評価
著者:
西川 聡,Satoru NISHIKAWA,大北 茂,Shigeru OHKITA,山口 篤憲,Atsunori YAMAGUCHI
発刊日:
公開日:
キーワードタグ:
Cr type steel Electrochemical technique Key Words Laves phase Peak of current density Toughness
西川 聡,Satoru NISHIKAWA,大北 茂,Shigeru OHKITA,山口 篤憲,Atsunori YAMAGUCHI
発刊日:
公開日:
キーワードタグ:
Cr type steel Electrochemical technique Key Words Laves phase Peak of current density Toughness
The weld metal of modified 9Cr-1 Mo steels is most low toughness in its MIG weld joint. It is necessary to pay attention to the toughness of weld metal because of securing to ughness of weld joint. The weld metal of precipitated Laves phase after long-term thermal aging decreased toughness. Peak of the current density (Ip) in the electrochemical t echnique was appeared in the weld metals of precipitated a lot of large Laves phase. It seemed that appearance of lp was caused by the dissolution of the Lave...
英字タイトル:
Electrochemical technique for toughness evaluation on 9Cr type steel components by long-term used
英字タイトル:
Electrochemical technique for toughness evaluation on 9Cr type steel components by long-term used
第11回
高速増殖原型炉「もんじゅ」の保全の在り方 ‐高速増殖炉劣化メカニズムの整理‐
著者:
山下 裕宣,Hironobu YAMASHITA,山口 篤憲,Atsunori YAMAGUCHI,青木 孝行,Takayuki AOKI
発刊日:
公開日:
キーワードタグ:
Aging phenomena FBR LWR O&M experiences Maintenance Monju Sodium
山下 裕宣,Hironobu YAMASHITA,山口 篤憲,Atsunori YAMAGUCHI,青木 孝行,Takayuki AOKI
発刊日:
公開日:
キーワードタグ:
Aging phenomena FBR LWR O&M experiences Maintenance Monju Sodium
Because a fast breeder reactor (FBR) uses sodium as a coolant and there exist systems and components unique to FBR, aging phenomena to be considered in FBR are quite different from ones in a light water reactor (LWR). Therefore it is required to make a maintenance plan for FBR by considering the characteristics of FBR. In the Japanese LWRs, aging phenomena which occur in every part of all safety-related components have been extracted based on the O&M experiences and the technical evaluation on aging pheno...
英字タイトル:
Principles of MONJU Maintenance - Ageing phenomena of FBR for maintenance-
英字タイトル:
Principles of MONJU Maintenance - Ageing phenomena of FBR for maintenance-