JP2019536983A - 原子燃料棒の事故耐性二重被膜 - Google Patents
原子燃料棒の事故耐性二重被膜 Download PDFInfo
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- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
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- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
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Abstract
Description
本発明は、エネルギー省との契約第DE−NE0008222号に基づく政府支援の下でなされたものである。米国政府は、本発明に対して一定の権利を有している。
Claims (29)
- 水冷式原子炉で使用される構成機器の基材上に耐腐食性境界を形成する方法であって、
基材(22)を提供するステップと、
当該基材(22)の外面に、Mo、Ta、WおよびNbから成る群より選択した粒径100ミクロン以下の粒子(24)を有する中間層(30)を形成するステップと、
当該中間層(30)の上に、Cr、Cr合金およびそれらの組み合わせから成る群より選択した粒径100ミクロン以下の粒子(36)を有する耐腐食層を形成するステップと
から成る方法。 - 前記基材(22)はジルコニウム合金製である、請求項1の方法。
- 前記耐腐食層のCr合金はFeCrAlまたはFeCrAlYのいずれかから成る、請求項1の方法。
- 前記耐腐食層および前記中間層(30)は熱的付着法によって形成される、請求項1の方法。
- 前記熱的付着法はコールドスプレー法である、請求項4の方法。
- 前記コールドスプレー法は、
加圧されたキャリアガスを100℃〜1200℃の温度に加熱するステップと、
当該加熱されたキャリアガスに前記粒子を添加するステップと、
当該キャリアガスおよび同伴粒子を800〜4000フィート/秒(約243.84〜1219.20メートル/秒)の速度でスプレーするステップと
から成る請求5の方法。 - 前記キャリアガスは、窒素(N2)、水素(H2)、アルゴン(Ar)、二酸化炭素(CO2)、ヘリウム(He)およびそれらの組み合わせから成る群より選択される、請求項6の方法。
- 前記耐腐食層および前記中間層(30)は物理蒸着法によって形成する、請求項1の方法。
- 前記物理蒸着法は、陰極アーク蒸着、マグネトロンスパッタリング蒸着、およびパルスレーザー蒸着から成る群より選択される、請求項8の方法。
- 前記中間層(30)および前記耐腐食層のうちの一方が熱的付着法によって形成され、前記中間層(30)および前記耐腐食層のうちのもう一方が物理蒸着法によって形成される、請求項1の方法。
- 前記熱的付着法はコールドスプレー法である、請求項10の方法。
- 前記コールドスプレー法は、
加圧されたキャリアガスを100℃〜1200℃の温度に加熱するステップと、
当該加熱されたキャリアガスに前記粒子を添加するステップと、
当該キャリアガスおよび同伴粒子を800〜4000フィート/秒(約243.84〜1219.20メートル/秒)の速度でスプレーするステップと
から成る請求項11の方法。 - 前記キャリアガスは、窒素(N2)、水素(H2)、アルゴン(Ar)、二酸化炭素(CO2)、ヘリウム(He)およびそれらの組み合わせから成る群より選択される、請求項9の方法。
- 前記物理蒸着法は、陰極アーク蒸着、マグネトロンスパッタリング蒸着、およびパルスレーザー蒸着から成る群より選択される、請求項10の方法。
- 前記中間層(30)の形成後に、前記被膜の平滑性を高めるステップをさらに含む、請求項1の方法。
- 前記耐腐食層の形成後に、前記被膜の平滑性を高めるステップをさらに含む、請求項1の方法。
- 前記中間層(30)の厚さが5〜100ミクロンの範囲内である、請求項1の方法。
- 前記耐腐食層の厚さが5〜100ミクロンの範囲内である、請求項1の方法。
- 前記中間層(30)および前記耐腐食層の前記粒子(24/36)の平均粒径は20ミクロン以下である、請求項1の方法。
- 前記基材(22)はジルコニウム合金である、請求項1の方法。
- 前記耐腐食層を形成する前記粒子(36)は純粋なクロム粒子である、請求項1の方法。
- 前記耐腐食層を形成する前記粒子(36)はCr合金粒子である、請求項1の方法。
- 前記耐腐食層を形成する前記粒子(36)はFeCrAlおよびFeCrAlYから成る群より選択した粒子である、請求項1の方法。
- 前記中間層(30)を形成する前記粒子(24)はMo粒子である、請求項1の方法。
- 前記中間層(30)は物理蒸着法によって付着させ、前記耐腐食層はコールドスプレー法によって付着させる、請求項10の方法。
- 前記中間層(30)は前記耐腐食層と前記基材(22)との間に共晶が形成されるのを防ぐ、請求項1の方法。
- 水冷式原子炉の燃料棒向けの被覆管であって、
ジルコニウム合金製で、Mo、Ta、W、およびNbから成る群より選択した材料で形成された内部被膜と、クロムまたはクロム合金により形成された外部被膜とを有することを特徴とする被覆管。 - 前記内部被膜および前記外部被膜の厚さは20〜50ミクロンである、請求項27の被覆管。
- 前記Cr合金はFeCrAlおよびFeCrAlYから成る群より選択される、請求項27の被覆管。
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US201662403304P | 2016-10-03 | 2016-10-03 | |
US62/403,304 | 2016-10-03 | ||
PCT/US2017/054697 WO2018067425A2 (en) | 2016-10-03 | 2017-10-02 | Duplex accident tolerant coating for nuclear fuel rods |
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JP2019536983A true JP2019536983A (ja) | 2019-12-19 |
JP7130629B2 JP7130629B2 (ja) | 2022-09-05 |
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US (1) | US11043308B2 (ja) |
EP (1) | EP3520116B1 (ja) |
JP (1) | JP7130629B2 (ja) |
KR (1) | KR102452148B1 (ja) |
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WO (1) | WO2018067425A2 (ja) |
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JP7242867B2 (ja) * | 2018-12-29 | 2023-03-20 | 昆明理工大学 | 超合金及びその製造方法 |
US11935662B2 (en) | 2019-07-02 | 2024-03-19 | Westinghouse Electric Company Llc | Elongate SiC fuel elements |
CA3151605C (en) | 2019-09-19 | 2023-04-11 | Westinghouse Electric Company Llc | Apparatus for performing in-situ adhesion test of cold spray deposits and method of employing |
CN111235562B (zh) * | 2020-03-04 | 2022-01-14 | 中国科学院金属研究所 | 一种采用冷喷涂制备抗辐照钽涂层的方法 |
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US20220384062A1 (en) | 2021-05-27 | 2022-12-01 | Westinghouse Electric Company Llc | Cathodic arc applied randomized grain structured coatings on zirconium alloy nuclear fuel cladding |
CN113293354B (zh) * | 2021-05-27 | 2022-11-25 | 重庆文理学院 | 用于包壳基体抗高温氧化涂层以及制备工艺 |
EP4195220A1 (en) | 2021-12-09 | 2023-06-14 | Westinghouse Electric Sweden AB | A nuclear fuel rod cladding tube and a method for manufacturing a nuclear fuel rod cladding tube |
CN114657525B (zh) * | 2022-03-30 | 2023-05-02 | 西安交通大学 | 一种FeCrAl/Ta合金涂层及其制备方法 |
CN116288178A (zh) * | 2023-02-15 | 2023-06-23 | 中山大学 | 一种抗高温氧化复合涂层及其制备方法 |
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EP3520116A4 (en) | 2020-03-25 |
US20180096743A1 (en) | 2018-04-05 |
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WO2018067425A2 (en) | 2018-04-12 |
WO2018067425A3 (en) | 2018-05-31 |
EP3520116B1 (en) | 2021-07-28 |
EP3520116A2 (en) | 2019-08-07 |
US11043308B2 (en) | 2021-06-22 |
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JP7130629B2 (ja) | 2022-09-05 |
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