JPWO2016136773A1 - 二酸化バナジウム - Google Patents
二酸化バナジウム Download PDFInfo
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- JPWO2016136773A1 JPWO2016136773A1 JP2017502405A JP2017502405A JPWO2016136773A1 JP WO2016136773 A1 JPWO2016136773 A1 JP WO2016136773A1 JP 2017502405 A JP2017502405 A JP 2017502405A JP 2017502405 A JP2017502405 A JP 2017502405A JP WO2016136773 A1 JPWO2016136773 A1 JP WO2016136773A1
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- Prior art keywords
- vanadium dioxide
- vanadium
- mole
- less
- atoms
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- 229910021542 Vanadium(IV) oxide Inorganic materials 0.000 title claims abstract description 78
- GRUMUEUJTSXQOI-UHFFFAOYSA-N vanadium dioxide Chemical compound O=[V]=O GRUMUEUJTSXQOI-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000010936 titanium Substances 0.000 claims abstract description 40
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 18
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 15
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 14
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 13
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 25
- 229910010293 ceramic material Inorganic materials 0.000 claims description 13
- 230000006866 deterioration Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 20
- 239000002245 particle Substances 0.000 description 11
- 239000010955 niobium Substances 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 239000012298 atmosphere Substances 0.000 description 7
- 230000007704 transition Effects 0.000 description 7
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 6
- 238000000113 differential scanning calorimetry Methods 0.000 description 6
- 229910001935 vanadium oxide Inorganic materials 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000033444 hydroxylation Effects 0.000 description 3
- 238000005805 hydroxylation reaction Methods 0.000 description 3
- 238000000634 powder X-ray diffraction Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012916 structural analysis Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
他の原子がWである場合、バナジウム、Tiおよび他の原子の合計100モル部に対して、他の原子の含有モル部が、0モル部より大きく5モル部以下であり、
他の原子がTa、MoまたはNbである場合、バナジウム、Tiおよび他の原子の合計100モル部に対して、他の原子の含有モル部が、0モル部より大きく15モル部以下であり、
バナジウム、Tiおよび他の原子の合計100モル部に対して、チタンの含有モル部は、2モル部以上30モル部以下であることを特徴とする、二酸化バナジウムが提供される。
V1−x−yTixMyO2
[式中、Mは、W、Ta、MoまたはNbであり、
xは0.02以上0.3以下であり、
yは0以上であって、
MがWである場合、yは0.05以下であり、
MがTa、MoまたはNbである場合、yは0.15以下である。]
で表される二酸化バナジウムが提供される。
V1−x−yTixMyO2
[式中、Mは、W、Ta、MoまたはNbであり、
xは0.02以上0.3以下であり、
yは0以上であって、
MがWである場合、yは0.05以下であり、
MがTa、MoまたはNbである場合、yは0.15以下である。]
で表される二酸化バナジウムであり得る。なお、Mは「他の原子」に相当し、必須成分ではなく、Mの含有モル部は0であってもよい。この場合、上記式で表される化合物はチタンのみがドープされた二酸化バナジウムとなる。
・バナジウム原料
二酸化バナジウム(VO2。Dalian Bolong New Materials社製)
・添加(ドープ)原料
酸化チタン(TiO2)
酸化タングステン(WO3)
酸化タンタル(Ta2O5)
酸化ニオブ(Nb2O5)
酸化モリブデン(MoO3)
作製した試料の初期の潜熱量を、DSC(示差走査熱量測定)法により、窒素雰囲気中、昇温速度:10K/分、0℃から100℃、そして0℃へと掃引して、昇温時の吸熱量を潜熱量とした。代表して試料番号2のDSC測定結果を図1に示す。
さらに、試料を代表して、試料番号2および10の粒子の耐湿試験前後の状態を、走査型電子顕微鏡で観察した。試料番号2の結果を図3(耐湿試験前)および図4(耐湿試験後)に、試料番号10の結果を図5(耐湿試験前)および図6(耐湿試験後)に示す。
なお、本明細書において、便宜上、化学式における酸素量を2(バナジウム、Tiおよび他の原子Mの合計1モル部に対して、酸素2モル部)として説明しているが、結晶構造的に安定に形成できた二酸化バナジウムであれば、2から若干のずれが許容される。この若干のずれは、化学分析結果より求められる酸素量からは、VOxにおいて、おおよそ1.9〜2.1である。この場合であっても、本発明と同様の作用効果を発揮し、耐湿性が高く、吸熱性に優れた二酸化バナジウムを得ることが可能である。
Claims (9)
- Tiがドープされた二酸化バナジウムまたはさらにW、Ta、MoおよびNbからなる群から選択される他の原子がドープされた二酸化バナジウムであって、
他の原子がWである場合、バナジウム、Tiおよび他の原子の合計100モル部に対して、他の原子の含有モル部が、0モル部より大きく5モル部以下であり、
他の原子がTa、MoまたはNbである場合、バナジウム、Tiおよび他の原子の合計100モル部に対して、他の原子の含有モル部が、0モル部より大きく15モル部以下であり、
バナジウム、Tiおよび他の原子の合計100モル部に対して、チタンの含有モル部は、2モル部以上30モル部以下であることを特徴とする、二酸化バナジウム。 - バナジウム、Tiおよび他の原子の合計100モル部に対して、チタンの含有モル部が、5モル部以上10モル部以下であることを特徴とする、請求項1に記載の二酸化バナジウム。
- 式:V1−x−yTixMyO2
[式中、Mは、W、Ta、MoまたはNbであり、
xは0.02以上0.3以下であり、
yは0以上であって、
MがWである場合、yは0.05以下であり、
MがTa、MoまたはNbである場合、yは0.15以下である。]
で表される二酸化バナジウム。 - xが0.05以上0.1以下であることを特徴とする、請求項3に記載の二酸化バナジウム。
- 請求項1〜4のいずれかに記載の二酸化バナジウムを含有するセラミック材料。
- 請求項1〜4のいずれかに記載の二酸化バナジウムの含有量が96質量%以上であることを特徴とする請求項5に記載のセラミック材料。
- 請求項1〜4のいずれかに記載の二酸化バナジウム、あるいは請求項5または6に記載のセラミック材料を含んで成る冷却デバイス。
- 請求項7に記載の冷却デバイスを有して成る電子部品。
- 請求項7に記載の冷却デバイスまたは請求項8に記載の電子部品を有して成る電子機器。
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