JP6465284B2 - 三酸化モリブデンペレットの製造方法 - Google Patents
三酸化モリブデンペレットの製造方法 Download PDFInfo
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- JP6465284B2 JP6465284B2 JP2014247586A JP2014247586A JP6465284B2 JP 6465284 B2 JP6465284 B2 JP 6465284B2 JP 2014247586 A JP2014247586 A JP 2014247586A JP 2014247586 A JP2014247586 A JP 2014247586A JP 6465284 B2 JP6465284 B2 JP 6465284B2
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- 239000008188 pellet Substances 0.000 title claims description 68
- 238000004519 manufacturing process Methods 0.000 title claims description 30
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims description 56
- 238000005245 sintering Methods 0.000 claims description 52
- 239000002775 capsule Substances 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 8
- 238000001513 hot isostatic pressing Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 5
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 claims 1
- 238000005453 pelletization Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 17
- 239000000843 powder Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000002490 spark plasma sintering Methods 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000005538 encapsulation Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000002059 diagnostic imaging Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- ZOKXTWBITQBERF-AKLPVKDBSA-N Molybdenum Mo-99 Chemical compound [99Mo] ZOKXTWBITQBERF-AKLPVKDBSA-N 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002901 radioactive waste Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- GKLVYJBZJHMRIY-OUBTZVSYSA-N Technetium-99 Chemical compound [99Tc] GKLVYJBZJHMRIY-OUBTZVSYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007922 dissolution test Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- QOSATHPSBFQAML-UHFFFAOYSA-N hydrogen peroxide;hydrate Chemical compound O.OO QOSATHPSBFQAML-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- JFALSRSLKYAFGM-OIOBTWANSA-N uranium-235 Chemical compound [235U] JFALSRSLKYAFGM-OIOBTWANSA-N 0.000 description 1
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- Press-Shaping Or Shaping Using Conveyers (AREA)
- Press Drives And Press Lines (AREA)
Description
(1)1つ 1つダイスに粉末を充填し焼結を行うことから、大量生産に不向きである。
(2)MoO3粉末の特性により製造条件が大きく変わり、条件設定が困難である。
(3)水酸化ナトリウム(NaOH)で溶解した際、溶液中に不溶解性残渣が多い。
(4)放射性廃棄物を低減することが困難である。
図5Aのグラフは、焼結圧力を190MPaで一定としたときの、焼結温度(℃)と焼結密度(%T.D.)の関係を示し、図5Bのグラフは、焼結温度を500℃で一定としたときの、焼結圧力(MPa)と焼結密度(%T.D.)の関係を示す。図5Aは、250℃、300℃、400℃、500℃、550℃、600℃の各温度での焼結密度を示している。
Claims (1)
- 原料である三酸化モリブデン(MoO3)粉末をプレス機により圧縮成形してペレット化する工程、複数個の前記ペレットを、同一のカプセルに封入した後、熱間等方圧加圧装置を用いて焼結する工程、焼結された複数個の前記ペレットを前記カプセルから取り出す工程から成る三酸化モリブデンペレットの製造方法において、
前記熱間等方圧加圧装置におけるペレット焼結圧力が50MPa〜190MPaの範囲にあって、ペレット焼結温度が300℃〜600℃の範囲にあることを特徴とする三酸化モリブデンペレットの製造方法。
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JP2016108188A JP2016108188A (ja) | 2016-06-20 |
JP6465284B2 true JP6465284B2 (ja) | 2019-02-06 |
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Families Citing this family (1)
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CA3155324C (en) * | 2019-10-21 | 2024-01-02 | Brendan J. LIDDLE | Molybdenum oxychloride with improved bulk density |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS6057040B2 (ja) * | 1978-08-02 | 1985-12-12 | 日本原子力研究所 | 三酸化モリブデンペレツトを使用したモリブデン‐99の製造法 |
JP3099829B2 (ja) * | 1990-08-08 | 2000-10-16 | 株式会社神戸製鋼所 | 等方圧加圧処理用カプセルの製作方法 |
JP4345560B2 (ja) * | 2003-09-16 | 2009-10-14 | 日本新金属株式会社 | スパッタリング用高純度金属Mo焼結ターゲットの製造に原料粉末として用いるのに適した高純度金属Mo粗粒粉末の製造方法 |
JP5569834B2 (ja) * | 2009-01-30 | 2014-08-13 | 独立行政法人日本原子力研究開発機構 | 高密度,高純度(n,γ)99Moを製造する方法 |
US9689067B2 (en) * | 2010-09-30 | 2017-06-27 | Hitachi Metals, Ltd. | Method for producing molybdenum target |
JP5888781B2 (ja) * | 2011-11-14 | 2016-03-22 | 国立研究開発法人日本原子力研究開発機構 | 放射性モリブデンの作製方法 |
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