CAS: 107539-20-8; Yttrium Barium Copper Oxide Powder

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copper

专利信息

专利号:US-9066864-B2
优先权日:2011-01-12
标 题:Use of liquid medium exchange by cross flow filtration in the preparation of drug suspensions
发明人：NIEDERMANN HANS PETER; BOTHE HEIKO
权利人:NIEDERMANN HANS PETER; BOTHE HEIKO; INTERVET INC
摘要:Disclosed is a method of making particles of a drug wherein use is made of diafiltration. The diafiltration can be with anti-solvent, in which case a precipitate is obtained of particles as such. The diafiltration can also be with a pharmaceutically acceptable suspension medium. In that case several process steps of isolating, drying, transporting of particles can be avoided, because the suspension resulting from the synthesis of the particles is directly turned into a final drug product formulation.

专利号:US-6794339-B2
优先权日:2001-09-12
标题:Synthesis of YBa2CU3O7 using sub-atmospheric processing
发明人：WIESMANN HAROLD; SOLOVYOV VYACHESLAV
权利人:BROOKHAVEN SCIENCE ASS LLC
摘要:The present invention is a method of forming thick films of crystalline YBa2Cu3O7 that includes forming a precursor film comprising barium fluoride (BaF2), yttrium (Y) and copper (Cu). The precursor film is heat-treated at a temperature above 500° C. in the presence of oxygen, nitrogen and water vapor at sub-atmospheric pressure to form a crystalline structure. The crystalline structure is then annealed at about 500° C. in the presence of oxygen to form the crystalline YBa2Cu3O7 film. The YBa2Cu3O7 film formed by this method has a resistivity of from about 100 to about 600 muOhm-cm at room temperature and a critical current density measured at 77 K in a magnetic field of 1 Tesla of about 1.0x10<5 >Ampere per square centimeter (0.1 MA/cm<2>) or greater.

专利号:US-2013324414-A1
优先权日:2010-08-06
标题:Solid-state catalysis of superconducting cuprates
发明人：SOLOVYOV VYACHESLAV F; LI QIANG
权利人:SOLOVYOV VYACHESLAV F; LI QIANG; BROOKHAVEN SCIENCE ASS LLC
摘要:Catalytically active (001) ceria substrates or buffers are used to modify the structure of the epitaxial high temperature superconductor YBa 2 Cu 3 O 7 . The catalytically active substrate has a small lateral grain size, typically less than 50 nm, to provide a high density of nucleation sites, at some of which nucleate a previously unknown metastable phase. The modification is achieved by catalytically assisted synthesis of the metastable phase. The new phase, a long-period (3.5-nm) perovskite, intercalates into the YBa 2 Cu 3 O 7 matrix without negatively affecting the critical temperature of the film. Analysis of electron microscopy and synchrotron X-ray diffraction data allow identification of the phase as a long-period YBa 2 Cu 3 O 7 derivative formed through short-range cation displacement. The films, from about 100-nm to about 1000-nm thick, exhibit strong enhancement of the critical current density, reaching a maximum of approximately 4.2 MA/cm 2 at 77 K.

专利号:US-12144266-B1
优先权日:2018-10-16
标题:Superconductor synthesis method
发明人：SLIMANI YASSINE; ALMESSIERE MUNIRAH ABDULLAH; AZZOUZ FATEN BEN
权利人:UNIV IMAM ABDULRAHMAN BIN FAISAL
摘要:A superconducting material includes YBa 2 Cu 3 O 7-δ and a nano-structured, preferably nanowires, WO 3 dopant in a range of from 0.01 to 3.0 wt. %, preferably 0.075 to 0.2 wt. %, based on total material weight. Methods of making the superconductor may preferably avoid solvents and pursue solid-state synthesis employing Y, Ba, and/or Cu oxides and/or carbonates.

专利号:US-7247349-B2
优先权日:2000-06-07
标题 :Method of self-assembly and optical applications of crystalline colloidal patterns on substrates
发明人：OZIN GEOFFREY ALAN; YANG SAN MING; MIGUEZ HERNAN
权利人:UNIV TORONTO
摘要:This invention describes methods of synthesis and applications of planarized photonic crystals. Provided are simple, quick, reproducible and inexpensive methods that combine self-assembly and lithography to achieve the first examples of vectorial control of thickness, structure, area, topology, orientation and registry of colloidal crystals that have been patterned in substrates for use in lab-on-chip and photonic chip technologies. 1-, 2 and 3-D colloidal crystals patterned either on or within substrates can be used for templating inverted colloidal crystal replica patterns made of materials like silicon as well as building micron scale structural defects in such colloidal crystals. These photonic crystals can form the basis of a range of optical devices that may be integrated within photonic chips and coupled to optical fibers and/or waveguides to enable development of highly compact planarized optically integrated photonic crystal devices and circuits for use in future all-optical computers and optical telecommunication systems.

专利号:US-2007264189-A1
优先权日:2005-05-19
标题 :Synthesis of Metal-Metal Oxide Catalysts and Electrocatalysts Using a Metal Cation Adsorption/Reduction and Adatom Replacement by More Noble Ones