JP7097392B2 - 核遮蔽用途のための鉄タングステンボロカーバイド体 - Google Patents
核遮蔽用途のための鉄タングステンボロカーバイド体 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- C22C29/14—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on borides
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1039—Sintering only by reaction
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- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/062—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on B4C
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
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- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
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- G21C11/00—Shielding structurally associated with the reactor
- G21C11/02—Biological shielding ; Neutron or gamma shielding
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- G21C11/028—Biological shielding ; Neutron or gamma shielding characterised by the form or by the material
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- G21F1/02—Selection of uniform shielding materials
- G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
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- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
- G21F1/085—Heavy metals or alloys
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- B22F2301/00—Metallic composition of the powder or its coating
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- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/35—Iron
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2302/00—Metal Compound, non-Metallic compound or non-metal composition of the powder or its coating
- B22F2302/05—Boride
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- B22F2302/00—Metal Compound, non-Metallic compound or non-metal composition of the powder or its coating
- B22F2302/10—Carbide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- B22—CASTING; POWDER METALLURGY
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- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
- C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0292—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with more than 5% preformed carbides, nitrides or borides
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- 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
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Description
a.元素B、Fe、Cr、C及びWを含む一又は複数種の粉末を提供する工程;
b.一又は複数種の粉末を有機バインダーと共に粉砕して粉末混合物を得る工程;
c.粉砕された粉末混合物を圧縮する工程;及び
d.圧縮粉末混合物を焼結して焼結体を得る工程
を含む本体の製造方法において、
一又は複数種の粉末が原子パーセントで次の元素:ホウ素21~41;鉄25~35;クロム2~4;炭素3~10;及び残部タングステンを含むことを特徴とする方法に関する。
従って、元素の「原子パーセント(at%)」が計算される。
a.添加された各粉末に対して、その粉末中の元素の分子量を使用して「原子ブレイクダウンパーセント」を計算する。例えば、B4Cの場合、相対的ホウ素含有量は次のようにして計算される:(4×B分子量(10.81))/((炭素分子量(12.01)+(4×ホウ素分子量(10.81)))×100=78.2wt%のB。よって、B4C中のCの「原子ブレイクダウンパーセント」は21.8wt%である。
b.「原子ブレイクダウンパーセント」に添加した粉末の重量(グラム)を掛けて「グラムでの原子ブレイクダウン」を計算する。この工程では、組成物の各元素について存在する原子の重量にその量を変換する。
c.「グラムでの原子ブレイクダウン」を取り、それを元素のモル質量で割って「モル量」を計算する。これから、組成物中の各元素に対しての原子のモル数が決定される。
d.各元素に対して「モル量」を取り、それを全ての「モル量」の合計で割って各原子種のモル分率をパーセントに正規化することによって「原子パーセント(at%)」を計算する。
a.元素B、Fe、Cr、C及びWを含む一又は複数種の粉末を提供する工程;
b.一又は複数種の粉末を有機バインダーと共に粉砕して粉末混合物を得る工程;
c.粉砕された粉末混合物を圧縮する工程;及び
d.圧縮粉末混合物を焼結して焼結体を得る工程
を含む本体の製造方法において、
一又は複数種の粉末が、原子パーセントで次の元素:
ホウ素 21~41;
鉄 25~35;
クロム 2~4;
炭素 3~10;
タングステン 残部
を含むことを特徴とする方法に関する。
Claims (9)
- 21~41原子パーセント(at%)の量のホウ素;
25~35at%の量の鉄;
2~4at%の量のクロム;
3~10at%の量の炭素;
本体組成物のタングステンのバランス
を含み、
Feの少なくとも95at%が、ホウ化物、金属間ホウ化物又は金属間炭化物の形態である、
本体組成物。 - Feの5at%未満がFeCrの形態である、請求項1に記載の本体組成物。
- a.B、Fe、Cr、C及びWを含む一又は複数種の粉末を提供すること;
b.粉末を有機バインダーと共に粉砕して粉末混合物を得ること;
c.粉砕された粉末混合物を圧縮すること;及び
d.圧縮粉末混合物を焼結して焼結体を得ること
を含む本体組成物の製造方法において、
工程aにおいて添加される粉末が、
21~41原子パーセント(at%)の量のホウ素;
25~35at%の量の鉄;
2~4at%の量のクロム;
3~10at%の量の炭素;
本体組成物のタングステンのバランスを含み、
Feの少なくとも95at%が、ホウ化物、金属間ホウ化物又は金属間炭化物の形態である、方法。 - 焼結工程が反応焼結プロセスである、請求項3に記載の方法。
- ホウ素がB4Cの形態で添加される、請求項3又は請求項4に記載の方法。
- 鉄とクロムがFeCrの形態で添加される、請求項3から5の何れか一項に記載の方法。
- Wが、Wと場合によってはWCの形態で添加される、請求項3から6の何れか一項に記載の方法。
- 添加されるWCの量が5wt%未満である、請求項7に記載の方法。
- 原子炉における核遮蔽のための物体を製造するための、請求項1に記載の本体組成物の使用。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP17170735.9 | 2017-05-11 | ||
EP17170735.9A EP3401413B1 (en) | 2017-05-11 | 2017-05-11 | An iron tungsten borocarbide body for nuclear shielding applications |
PCT/EP2018/054585 WO2018206173A1 (en) | 2017-05-11 | 2018-02-23 | An iron tungsten borocarbide body for nuclear shielding applications |
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JP2020519887A JP2020519887A (ja) | 2020-07-02 |
JP7097392B2 true JP7097392B2 (ja) | 2022-07-07 |
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JP2019561968A Active JP7097392B2 (ja) | 2017-05-11 | 2018-02-23 | 核遮蔽用途のための鉄タングステンボロカーバイド体 |
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US (1) | US11279991B2 (ja) |
EP (2) | EP3401413B1 (ja) |
JP (1) | JP7097392B2 (ja) |
KR (1) | KR102563401B1 (ja) |
CN (1) | CN110603340B (ja) |
BR (1) | BR112019023343B1 (ja) |
CA (1) | CA3060114A1 (ja) |
ES (2) | ES2965904T3 (ja) |
HU (1) | HUE049251T2 (ja) |
PT (1) | PT3650562T (ja) |
RU (1) | RU2761020C2 (ja) |
SI (1) | SI3401413T1 (ja) |
TW (1) | TWI759437B (ja) |
WO (1) | WO2018206173A1 (ja) |
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CN112779455A (zh) * | 2019-11-07 | 2021-05-11 | 有研工程技术研究院有限公司 | 一种高密度含硼复合材料制备方法 |
US11351609B2 (en) * | 2020-07-15 | 2022-06-07 | Millennitek Llc | Synthesis of tungsten tetraboride |
CN113755711B (zh) * | 2021-08-18 | 2022-05-20 | 西安理工大学 | 一种W-Fe-B硬质合金的制备方法 |
CN113798487B (zh) * | 2021-08-27 | 2022-07-08 | 四川大学 | 一种Fe基球形屏蔽合金粉末及其制备方法 |
CN114525451B (zh) * | 2022-02-08 | 2023-04-14 | 有研工程技术研究院有限公司 | 一种屏蔽型非等原子比高熵合金钢及其制备方法 |
CN115125424B (zh) * | 2022-05-25 | 2023-03-10 | 广州赛隆增材制造有限责任公司 | 间接3d打印用金属陶瓷喂料及其制备方法、应用 |
CN116254433B (zh) * | 2023-03-17 | 2023-07-21 | 哈尔滨工业大学 | 一种低密度高强韧AlMoNbTaTiZr系难熔高熵合金的制备方法 |
Citations (2)
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CN101353771A (zh) | 2008-09-09 | 2009-01-28 | 沈阳铸造研究所 | 一种钨基非晶合金 |
US20100263766A1 (en) | 2009-04-20 | 2010-10-21 | Cheng Kiong Saw | Iron-based amorphous alloys and methods of synthesizing iron-based amorphous alloys |
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US3988118A (en) | 1973-05-21 | 1976-10-26 | P. R. Mallory & Co., Inc. | Tungsten-nickel-iron-molybdenum alloys |
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JPS6057499B2 (ja) * | 1981-10-19 | 1985-12-16 | 東洋鋼鈑株式会社 | 硬質焼結合金 |
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US20200176142A1 (en) | 2020-06-04 |
RU2761020C2 (ru) | 2021-12-02 |
WO2018206173A1 (en) | 2018-11-15 |
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CN110603340A (zh) | 2019-12-20 |
US11279991B2 (en) | 2022-03-22 |
KR20200004806A (ko) | 2020-01-14 |
EP3650562B1 (en) | 2023-09-27 |
TW201900895A (zh) | 2019-01-01 |
BR112019023343B1 (pt) | 2023-04-11 |
CA3060114A1 (en) | 2018-11-15 |
CN110603340B (zh) | 2021-12-31 |
SI3401413T1 (sl) | 2020-03-31 |
JP2020519887A (ja) | 2020-07-02 |
RU2019139243A (ru) | 2021-06-11 |
EP3401413A1 (en) | 2018-11-14 |
EP3401413B1 (en) | 2020-01-08 |
KR102563401B1 (ko) | 2023-08-03 |
ES2965904T3 (es) | 2024-04-17 |
EP3650562A1 (en) | 2020-05-13 |
PT3650562T (pt) | 2023-10-19 |
TWI759437B (zh) | 2022-04-01 |
RU2019139243A3 (ja) | 2021-06-11 |
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BR112019023343A2 (pt) | 2020-06-16 |
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