Synthesis of Ba2YCu3O7-.DELTA. superconductor through organometallic route.
スポンサーリンク
概要
- 論文の詳細を見る
The chemical synthesis of a high-<I>T</I><SUB>c</SUB> Ba<SUB>2</SUB>YCu<SUB>3</SUB>O<SUB>7–δ</SUB> superconductor was investigated through the organometallic route, using Ba metal, Y(OPr<I><SUP>i</SUP></I>)<SUB>3</SUB>, and Cu–alkoxides or Cu–acetylacetonate as starting materials. Chemically homogeneous submicron powders of single phase Ba<SUB>2</SUB>YCu<SUB>3</SUB>O<SUB>7–δ</SUB> were successfully prepared at 750 °C by controlled partial hydrolysis of metal alkoxides. The utilization of ozone for favorable decomposition of Ba<SUB>2</SUB>YCu<SUB>3</SUB>O<SUB>7–δ</SUB> precursors was found to have a remarkable effect on suppressing the formation of BaCO<SUB>3</SUB> and lowering the formation temperature of Ba<SUB>2</SUB>YCu<SUB>3</SUB>O<SUB>7–δ</SUB> to about 650 °C. The single phase Ba<SUB>2</SUB>YCu<SUB>3</SUB>O<SUB>7–δ</SUB> ceramics exhibited superconductivity at approximately 83 K (<I>T</I><SUB>c</SUB> end).
- 公益社団法人 日本化学会の論文
著者
-
MIURA Masashi
Department of Electrical Engineering and Computer Science, Nagoya University
-
Hirano Shin-ichi
Department Of Applied Chemistry Graduate School Of Engineering Nagoya University
-
Hayashi Takashi
Department Of Applied Chemistry Graduate School Of Engineering Osaka University
-
Tomonaga Hiroyuki
Department Of Applied Chemistry School Of Engineering Nagoya University
-
Hayashi Takashi
Department of Applied Chemistry, Faculty of Engineering, Nagoya University
-
Miura Masashi
Department of Applied Chemistry, Faculty of Engineering, Nagoya University
-
Tomonaga Hiroyuki
Department of Applied Chemistry, Faculty of Engineering, Nagoya University
関連論文
- Response of Serum Carboxylated and Undercarboxylated Osteocalcin to Risedronate Monotherapy and Combined Therapy with Vitamin K2 in Corticosteroid-Treated Patients: A Pilot Study
- Synthesis and Properties of V-Doped (Sr,Ca)2(Nb,Ta)2O7 Thin Films by Chemical Solution Deposition (特集 高精度電子部品材料)
- Fabrication and Properties of (Bi,La)4Ti3O12 Thin Films through Metal-Organic Compounds (特集 高精度電子部品材料)
- Synthesis of (Bi, Nd)_4(Ti, Ge)_3O_ Thin Films by Chemical Solution Deposition
- Preparation and Properties of Bi_La_xTi_3O_ Ferroelectric Thin Films Using Excimer UV Irradiation
- Chemical Solution Processing and Characterization of Highly Oriented (Ba,Ln)Nb_2O_6 [Ln: La, Gd, Dy] Thin Films
- Hydrothermal Synthesis and Chatacterization of Lead Titanate Powder
- Isolable Iron(II)-Porphycene Derivative Stabilized by Introduction of Trifluoromethyl Groups on the Ligand Framework
- Chemical Properties of Sperm Whale Myoglobins Reconstituted with Monopropionate Hemins
- Enhancement of Peroxygenase Activity of Horse Heart Myoglobin by Modification of Heme-propionate Side Chains
- Formation and Cleavage of a Dicobalt Complex Bridged with a Pentamethylene Group
- Interfacial Recognition between Reconstituted Myoglobin Having Charged Binding Domain and Electron Acceptor via Electrostatic Interaction
- Molecular Recognition by Novel Macrotetracyclic Cyclophanes Having Dipeptide Segments
- A case of early myoclonic encephalopathy with the congenital nephrotic syndrome
- A case of large neonatal arteriovenous malformation with heart failure Color Doppler sonography, MRI and MR angiography as early non-invasive diagnostic procedures
- Optic nerve hypoplasia with hypopituitarism and an arachnoid cyst
- Inhomogeneous Vasodilatory Responses of Rat Tail Arteries to Heat Stress : Evaluation by Synchrotron Radiation Microangiography
- Pineocytoma with Intratumoral Hemorrhage Following Ventriculoperitoneal Shunt : Case Report
- Synthesis and Properties of Alkylperoxocobalt(III)Porphyrin and Porphycene
- Raman Studies of the Effects of Nb Dopant on the Ferroelectric Properties in Lead Titanate Thin Film
- Low-Temperature Processing of Pb(Zr_ Ti_)O_3 Thin Films by Sol-Gel Casting
- Urinary Metabolites of Valproic Acid in Epileptic Patients
- Chemical Solution Processing and Properties of (Bi,Nd)_4Ti_3O_ Ferroelectric Thin Films
- Preparation and Dielectric Properties of SrBi_2Ta_2O_9 Thin Films by Sol-Gel Method
- B-30. Treatment of Infantile Hydrocephalus,especially Accompanied by the Central Nerbous System Anomaly
- B-17. Measurement of the Intracranial Pressure from the Anterior Fontanelle. : Report 2:Intracranial Pressure Measurement and Analysis of the "Fontanel Puluse"
- Laser Heating Dynamics of Poly(methyl methacrylate) Films Doped with Aromatic Molecules as Revealed by Analysis of Diffusion of Triplet States
- Gene Cloning and Characterization of Aldehyde Dehydrogenase from a Petroleum-Degrading Bacterium, Strain HD-1
- The Irradiation of an Accelerated Heavy ion Beam : Application to the Anti-Arrhythmic Therapy without Massive Myocardial Damage
- Characteristics of clinicopathological and histological findings of superficial depressed type of colorectal submucosal invasive carcinoma, compared with polyp type
- Film Thickness Dependence of Dielectric Properties of BaTiO_3 Thin Films Prepared by Sol-Gel Method ( FERROELECTRIC MATERIALS AND THEIR APPLICATIONS)
- Preparation and Properties of Ferroelectric BaTiO_3 Thin Films by Sol-Gel Process
- Raman Scattering Study of Gallium Orthophosphate(α-GaPO_4)-Temperature and Pressure Dependences-
- Effect of PbTiO_3 Seeding Layer on the Growth of Sol-Gel-Derived Pb (Zr_Ti_) O_3 Thin Film
- Dislocation Density and Critical Current Density of Sm_Ba_Cu_3O_y Films Prepared by Various Fabrication Processes
- Enhancement of Flux-Pinning in Epitaxial Sm_Ba_Cu_3O_y Films by Introduction of Low-T_c Nanoparticles
- High-Critical-Current-Density SmBa_2Cu_3O_ Films Induced by Surface Nanoparticle
- Molecular Recognition of Horse Heart Apomyoglobin to Monopropionate Hemin: Thermodynamic Determination of Two Orientational Isomers by ^1H NMR Spectra
- Isolation and Characterization of Xanthobacter polyaromaticivorans sp. nov. 127W That Degrades Polycyclic and Heterocyclic Aromatic Compounds under Extremely Low Oxygen Conditions
- Presence of Exclusively Bacteriochlorophyll-c Containing Substrain in the Culture of Green Sulfur Photosynthetic Bacterium Chlorobium vibrioforme Strain NCIB 8327 Producing Bacteriochlorophyll-d
- Subarachnoid Hemorrhage Caused by Dural Arteriovenous Fistula of the Sphenobasal Sinus
- Hemimegaloencephaly with Periventricular Heterotopia : Case Report
- 3P113 Substrate binding excludes water cluster from active site of cytochrome P450cam - mutation analysis of water expelling system(Heme proteins,The 48th Annual Meeting of the Biophysical Society of Japan)
- Synthesis of Conductive LaNiO_3 Thin Films by Chemical Solution Deposition : Surfaces, Interfaces, and Films
- Synthesis and Properties of Highly Oriented (Sr, Ba)(Nb,Ta)_2O_6 Thin Films by Chemical Solution Deposition
- Dielectric and Pyroelectries Properties of Alkoxy-Derived KTa_Nb_O_3 Thin Film
- Chemical Solution Processing and Characterization of La Doped Tungsten Bronze K_(Pb_Ba_)_Nb_2O_6 Thin Films
- Synthesis of Highly Oriented Tungsten Bronze K(Pb_Ba_)_2Nb_5O_ Thin Films by the Chimical Solution Deposition Method
- Preparation and Properties of K(Sr_Ba_)_2Nb_5O_ Thin Films by Chemical Solution Deposition Method
- Synthesis of Ring-Fluorinated Porphyrins and Reconstitutional Myoglobins with Their Iron Complexes
- Low-Temperature Processing of Highly Oriented Pb(Zr_XTi_)O_3 Thin Film with Multi-Seeding Layers
- Low-Temperature Processing of Ferroelectric Pb(Zr_Ti_)O_3 Thin Film from Molecular-Designed Alkoxide Precursor Solution
- Cerebellopontine Angle Meningioma Causing Asymptomatic Syringomyelia : Case Report
- Preparation and Binding Affinity of New Porphyrin Host Molecule for Ubiquinone Analogues
- Synthesis and Magnetic Properties of Fe_7C_3 Particles with High Saturation Magnetization
- 3P-075 基質カンファー結合によるチトクロムP450camの構造変化(ヘム蛋白質,第47回日本生物物理学会年会)
- Sinus Pericranii Associated With Craniosynostosis
- Surgical Program for Craniosynostosis Using Three-Dimensional Solid Model, Combined With Autologous Blood Transfusion in a Japanese Craniofacial Unit
- A Case of Improved Obstructive Sleep Apnea by Distraction Osteogenesis for Midface Hypoplasia of an Infantile Crouzon's Syndrome
- Low-Temperature Sintering of LiBiO2-Coated Pb(Mg1/3Nb2/3)O3-PbZrO3-PbTiO3 Powders Prepared by Surface Chemical Modification Method and Their Piezoelectric Properties
- Effect of Mn-Doping on the Piezoelectric Properties of (K0.5Na0.5)(Nb0.67Ta0.33)O3 Lead-Free Ceramics
- DNA-Binding Hemoproteins Tethering Polyamine Interface
- Gentisate 1,2-Dioxygenase from Xanthobacter polyaromaticivorans 127W
- Postoperative Infection After Duraplasty With Expanded Polytetrafluoroethylene Sheet
- Enhanced Critical Current under a Magnetic Field in Sm1+xB2-xCu3Oy Thick Films Prepared Using Low-temperature Growth Technique
- Piezoelectric and Dielectric Properties of (Bi,Na,K,Ag)TiO3–BaTiO3 Lead-Free Piezoelectric Ceramics
- Dilated Fourth Ventricle in Arnold-Chiari Malformation Type II: Isolated Fourth Ventricle as Sequelae of Shunt? : Case Report
- Magnetic Resonance Imaging of Fat Embolism Syndrome : Case Report
- 3P-076 チトクロムP450camの活性部位からの水クラスター排出機構(ヘム蛋白質,第47回日本生物物理学会年会)
- Endarterectomy for Narrowing of the External Carotid Artery in a Patient Who Underwent Extracranial-Intracranial Bypass for Occlusion of the Internal Carotid Artery : Case Report
- Influence of α-tumor necrosis factor and β-interleukin-1 on production of angiogenetic factors and thymidine phosphorylase activity in immortalized human decidual fibroblasts in vitro
- Chemical Processing and Dielectric Properties of Ferroelectric SrBi_2Ta_2O_9 Thin Films
- Sinus Pericranii with Severe Symptom Due to Transient Disorder of Venous Return : Case Report
- Dielectric Properties of Double-Oxide Ceramics in the System Ln_2O_3-TiO_2 (Ln=La, Nd and Sm) : Dielectric Properties
- Preparation of (Ba_xSr_)TiO_3 Particles by Vapor-Phase Hydrolysis of Precursors Formed from Alkoxide-Hydroxide
- Electric-Field-Induced Strain in Lead Lanthanum Zirconate Titanate Ceramics
- Preparation of Superconducting Bi-Sr-Ca-Cu-O Films with Preferred Orientation through a Metal Alkoxide Route
- Processing of Porous 3-3 PZT Ceramics Using Capsule-Free O_2-HIP : Piezoelectrics
- Synthesis and Characterization of (K0.5Na0.5)(Nb0.7Ta0.3)O3 Piezoelectric Ceramics Sintered with Sintering Aid K5.4Cu1.3Ta10O29
- Effect of Li Substitution on the Piezoelectric Properties of Potassium Sodium Niobate Ceramics
- Sintering and Piezoelectric Properties of Potassium Sodium Niobate Ceramics with Newly Developed Sintering Aid
- Dislocation Density and Critical Current Density of Sm1+xBa2-xCu3Oy Films Prepared by Various Fabrication Processes
- Preparation and Dielectric Properties of SrTiO_3/BaTiO_3 Multilayer Thin Films by Sol-Gel Method
- CORTICAL MASTICATION AND ITS EFFERENT PATHWAY IN DOGS
- Sinterability and Piezoelectric Properties of (K,Na)NbO3 Ceramics with Novel Sintering Aid
- Erythematous and bullous rash strongly indicating toxic epidermal necrolysis associated with the use of intravenous ritodrine hydrochloride
- Fabrication and Properties of Ge-Doped (Bi,Nd)4Ti3O12 Thin Films by Chemical Solution Deposition
- Processing and Properties of Rare Earth Ion-Doped Bismuth Titanate Thin Films by Chemical Solution Deposition method
- Enhancement of Piezoelectric Properties of Low-Temperature-Fabricated Pb(Mg1/3Nb2/3)O3-PbZrO3-PbTiO3 Ceramics with LiBiO2 Sintering Aid by Post-Annealing Process
- Excimer UV Processing of (Bi,Nd)4Ti3O12 Ferroelectric Thin Films by Chemical Solution Deposition Method
- Properties of Highly Oriented Rare-Earth-Ion-Substituted BaNb2O6 Thin Films Synthesized by Chemical Solution Deposition
- Electric-Field-Induced Strain in Lead Lanthanum Zirconate Titanate Ceramics
- A SUPPRESSING EFFECT OF ε-AMINO-N-CAPROIC ACID ON THE BLEEDING OF DOGS, PRODUCED WITH THE ACTIVATION OF PLASMIN IN THE CIRCULATORY BLOOD
- Induction of β-Defensin Expression by Porphyromonas gingivalis-Infected Human Gingival Graft Transplanted in nu/nu Mouse Subdermis
- Fronto-ethmoidal encephalomeningocele.
- Cerebrospinal fluid ferritin in patients with central nervous system tumors.
- Preparation of crystalline LiNbxTa1-xO3(0.LEQ.x.LEQ.1) films from metal alkoxide solutions.
- Synthesis of Ba2YCu3O7-.DELTA. superconductor through organometallic route.
- Hydrothermal synthesis of gallium orthophosphate crystals.
- Chemical Solution Processing and Properties of (Bi,Nd)4Ti3O12 Ferroelectric Thin Films