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Rapid solid-state reaction of oxides with ultraviolet radiation

A technology of oxides and ultraviolet light, applied in oxide conductors, copper compounds, inorganic chemistry, etc., can solve problems such as poor quality of superconductor materials

Inactive Publication Date: 2016-02-03
卡尔·亚历克斯·穆勒 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the quality of the obtained superconductor material is poor (see A. Agostino et al., Supercond. Sci. Technol. 17, 685 (2004))

Method used

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  • Rapid solid-state reaction of oxides with ultraviolet radiation
  • Rapid solid-state reaction of oxides with ultraviolet radiation
  • Rapid solid-state reaction of oxides with ultraviolet radiation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0072] Example: high temperature superconductor YBa 2 Cu 3 o 7-x Synthesis

[0073] At least 99.99% pure La 2 o 3 、BaCO 3 and CuO in a stoichiometric ratio were thoroughly mixed in an agate mortar to make a powder mixture. Hereinafter, the powder mixture was compressed into pellets with a diameter of about 12 mm and a thickness of about 0.4 mm to 1 mm with a pressure of 5 tons. These pellets or samples were then irradiated under different conditions by means of the above-mentioned apparatus.

[0074] Sample #1 was irradiated by both UV and halogen lamps at 900 degrees Celsius for about 30 minutes. Sample #2 was irradiated by halogen lamp only at 900 degrees Celsius for about 30 minutes. Control Sample #3 was inserted into a conventional oven (which had been preheated to approximately 900 degrees Celsius) and the sample was removed from the oven after 30 minutes. All reactions with Sample #1, Sample #2 and Sample #3 were performed in air.

[0075] A black ceramic samp...

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Abstract

The present invention relates to a method for solid-state synthesis of ceramic materials, in particular of oxide materials or cuprates, comprising or consisting of the step of providing starting material in amounts effective to produce the ceramic material and, thereafter, applying a treatment to said material by use of a solid-state reaction therein, said reaction being performed by irradiating said material from at least one light source with ultraviolet light. The present invention also relates to methods for producing thin films and to a use of the method for production of high-temperature superconductors.

Description

technical field [0001] The invention relates to a method for producing a ceramic material according to claim 1 . The object of the method according to the invention is in particular to provide a fast, simple and inexpensive method for the synthesis of oxide materials or cuprates. Importantly, the present invention proposes a method that can be easily implemented in existing production lines, significantly increasing yield and quality while reducing manufacturing time and energy consumption. Background technique [0002] Today, efficient energy transfer is absolutely critical to the success of any economic system. In particular, it is often necessary to move electricity from where it is produced to where it is consumed, sometimes over distances of thousands of kilometers. Since the late 1980s, the material of choice for such power transmission has been known as: high temperature superconductors. However, even more than two decades after the discovery of cuprate superconduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/45C04B35/626C04B35/64H01L39/24
CPCC04B35/016C04B35/4504C04B35/4508C04B35/64C04B2235/3208C04B2235/3213C04B2235/3215C04B2235/3225C04B2235/3227C04B2235/3267C04B2235/6567C04B2235/6585C04B2235/663C04B2235/768C04B2235/9661H10N60/0268C01G3/006H01B12/06H01B1/08C01P2006/40H10N60/857H10N60/0436H10N60/0521H10N60/0548H10N60/0661H10N60/0884
Inventor 卡尔·亚历克斯·穆勒亚历山大·申格拉亚迪米特里·达拉谢利亚祖拉布·吉布季大卫·亚帕里泽
Owner 卡尔·亚历克斯·穆勒
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