JP2018521942A - 直接誘導による窒化ホウ素ナノチューブ合成 - Google Patents
直接誘導による窒化ホウ素ナノチューブ合成 Download PDFInfo
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- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 230000006698 induction Effects 0.000 title claims abstract description 104
- 230000015572 biosynthetic process Effects 0.000 title description 41
- 238000003786 synthesis reaction Methods 0.000 title description 24
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 229
- 229910052796 boron Inorganic materials 0.000 claims abstract description 223
- 238000000034 method Methods 0.000 claims abstract description 80
- 230000008569 process Effects 0.000 claims abstract description 72
- 239000002994 raw material Substances 0.000 claims abstract description 70
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 239000003870 refractory metal Substances 0.000 claims abstract description 17
- 238000010891 electric arc Methods 0.000 claims abstract description 10
- 229910052582 BN Inorganic materials 0.000 claims description 55
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 54
- 238000001338 self-assembly Methods 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 31
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 230000002194 synthesizing effect Effects 0.000 claims description 13
- 229910052756 noble gas Inorganic materials 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000012535 impurity Substances 0.000 abstract description 9
- 239000004020 conductor Substances 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 abstract description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 206010027339 Menstruation irregular Diseases 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 17
- 238000013459 approach Methods 0.000 description 15
- 239000002041 carbon nanotube Substances 0.000 description 13
- 229910021393 carbon nanotube Inorganic materials 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 11
- 239000000835 fiber Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 238000009826 distribution Methods 0.000 description 8
- 239000000155 melt Substances 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 230000005672 electromagnetic field Effects 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 238000009616 inductively coupled plasma Methods 0.000 description 4
- 229910052743 krypton Inorganic materials 0.000 description 4
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 4
- 229910052754 neon Inorganic materials 0.000 description 4
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 229910052724 xenon Inorganic materials 0.000 description 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 150000002835 noble gases Chemical class 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241000221931 Hypomyces rosellus Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
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- 230000002441 reversible effect Effects 0.000 description 2
- 238000001308 synthesis method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- TZHYBRCGYCPGBQ-UHFFFAOYSA-N [B].[N] Chemical compound [B].[N] TZHYBRCGYCPGBQ-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000010987 cubic zirconia Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
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- 230000001419 dependent effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000010671 solid-state reaction Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/064—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with boron
- C01B21/0641—Preparation by direct nitridation of elemental boron
-
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- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
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- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
- C04B35/62272—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres based on non-oxide ceramics
- C04B35/62286—Fibres based on nitrides
- C04B35/6229—Fibres based on nitrides based on boron nitride
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00132—Controlling the temperature using electric heating or cooling elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
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Abstract
Description
なし。
Claims (30)
- 窒化ホウ素ナノチューブ(BNNT)を合成するためのプロセスであって、
前記プロセスは:
窒素ガスをチャンバ内へと第1の方向に供給するステップ;
ホウ素原材料を取り囲む直接誘導コイルに電力を供給して、ホウ素溶融物を形成するステップ
を含み、
前記第1の方向における前記ホウ素溶融物の下流において、前記ホウ素溶融物からホウ素及び窒化ホウ素微小液滴が発生し、
BNNTは、前記ホウ素及び窒化ホウ素微小液滴から下流において自己集合する、プロセス。 - 前記直接誘導コイルへの電力の供給により、前記窒素ガスの一部分を前記チャンバに入れて前記ホウ素溶融物中に溶解させ、窒化ホウ素微小液滴を形成させる、請求項1に記載のプロセス。
- 前記ホウ素原材料は、ホウ素材料及び耐火性金属を含む、請求項1に記載のプロセス。
- 前記耐火性金属は、モリブデン及びタングステンのうちの少なくとも1つを含む、請求項3に記載のプロセス。
- 前記ホウ素原材料は、るつぼ内において支持される、請求項1に記載のプロセス。
- 前記るつぼは、直接誘導渦電流場集中装置内において支持される、請求項5に記載のプロセス。
- 前記るつぼは、前記直接誘導コイルによって支持される、請求項5に記載のプロセス。
- 前記るつぼを冷却するステップを更に含む、請求項5に記載のプロセス。
- 前記ホウ素原材料の下に窒化ホウ素の層を堆積させるステップを更に含む、請求項1に記載のプロセス。
- 前記ホウ素原材料を加熱して、導電性ホウ素原材料を形成するステップを更に含む、請求項1に記載のプロセス。
- 少なくとも1つのレーザを用いて前記ホウ素原材料を加熱するステップを更に含む、請求項10に記載のプロセス。
- 少なくとも1つの電気アークを用いて前記ホウ素原材料を加熱するステップを更に含む、請求項10に記載のプロセス。
- 前記チャンバに少なくとも1つの希ガスを供給するステップを更に含む、請求項1に記載のプロセス。
- BNNTは、前記第1の方向において前記ホウ素原材料の下流の成長ゾーンにおいて、前記ホウ素及び窒化ホウ素微小液滴から自己集合し、
前記成長ゾーンの少なくとも一部分を取り囲む第2の直接誘導コイルに電力を供給するステップを更に含む、請求項1に記載のプロセス。 - BNNTは、前記第1の方向において前記ホウ素原材料の下流の前記成長ゾーンにおいて、前記ホウ素及び窒化ホウ素微小液滴から自己集合し、
前記成長ゾーンの少なくとも一部分を取り囲む直流コイルに電力を供給するステップを更に含む、請求項1に記載のプロセス。 - 前記ホウ素溶融物の下流におけるBNNT自己集合成長ゾーンにおいて、前記窒素ガス及び前記ホウ素溶融物の流量を制御するステップを更に含む、請求項1に記載のプロセス。
- BNNTを合成するための装置であって、
前記装置は:
ホウ素原材料設置表面を提供するチャンバ;
窒素を前記チャンバへと第1の方向に供給するよう構成された、窒素ガス供給システム;
ホウ素原材料支持体;及び
前記ホウ素原材料支持体を取り囲む直接誘導コイル
を備える、装置。 - 前記第1の方向において前記ホウ素原材料支持体の下流の成長ゾーン領域を更に備え、
前記成長ゾーン領域は、前記第1の方向において前記ホウ素原材料支持体の下流でBNNTを自己集合させるよう構成される、請求項17に記載の装置。 - 前記ホウ素原材料支持体は、窒化ホウ素製のるつぼを備える、請求項17に記載の装置。
- 直接誘導渦電流場集中装置を更に備える、請求項19に記載の装置。
- 前記集中装置は、前記るつぼを格納するよう構成される、請求項20に記載の装置。
- 前記集中装置は、前記第1の方向に第1の長さの外側円筒状部分と、前記第1の方向に第2の長さの内側円筒状部分とを備え、
前記第1の長さは前記第2の長さより大きい、請求項20に記載の装置。 - 前記集中装置は、前記直接誘導集中装置内で生成された渦電流に、循環経路を辿らせるよう構成された、垂直スロットを更に備える、請求項18に記載の装置。
- 前記ホウ素原材料支持体は、窒化ホウ素製の前記るつぼを備え、
前記直接誘導コイルは、前記るつぼを格納するよう構成される、請求項17に記載の装置。 - 前記ホウ素原材料支持体の少なくとも一部分を取り囲む第2の直接誘導加熱コイルを更に備える、請求項17に記載の装置。
- 前記ホウ素原材料及びホウ素溶融物を加熱するための少なくとも1つのレーザを更に備える、請求項17に記載の装置。
- 前記ホウ素原材料及びホウ素溶融物を加熱するための少なくとも1つの電気アークを更に備える、請求項17に記載の装置。
- 前記成長ゾーンの少なくとも一部分を取り囲む直流電流加熱コイルを更に備える、請求項17に記載の装置。
- 前記窒素ガス供給システムは、窒素ガスを昇圧下で前記チャンバに供給するよう構成される、請求項17に記載の装置。
- 前記昇圧は、約2気圧〜約250気圧である、請求項29に記載の装置。
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