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Application Of Dehydrogenation And Hydrogen Sensing Measurements Of Proton Conductor Hydrogen Pump And Clean Aluminum Liquid Hydrogen Sensor

Posted on:2016-01-03Degree:MasterType:Thesis
Country:ChinaCandidate:T XuFull Text:PDF
GTID:2191330470480873Subject:Materials Science and Engineering
Abstract/Summary:PDF Full Text Request
In modern industry, aluminum and aluminum alloys has been widely used,especially in some high-tech fields such as aerospace, automotive, machinery manufacturing, electrochemical industry, aluminum and aluminum alloy material has a very distinct advantage. With the rapid development of science and technology as well as the industrial economy, the quality requirements for aluminum and aluminum alloys is increasing. Modern aluminum and aluminum production and processing of the urgent need simple, high-precision measurement of hydrogen methods and environmentally high-performance dehydrogenation way. In this study, the research laboratory electrochemical measurement of hydrogen in the dehydrogenation convenient method proton conductor, reliable, and low pollution. Europe and other Western countries have been experimental study of aluminum and concrete application of the area, but our country in this regard is still only in its infancy, to compensate for the domestic blank, the present study tests the use of perovskite-typ conductors assembled hydrogen sensor and hydrogen pump which is used to measure liquid aluminum and dehydrogenation of hydrogen for the production of low hydrogen, high-quality aluminum and aluminum products provide theoretical and technical support.Using solid-phase synthesis method with Ca CO3 Zr O2 In203 synthesized Ca Zr0.9In0.102。95。Paul 2 hours the pressure in the final powder 200 MPa prepared, and at a temperature of 1400 ° C in a constant temperature sintering 10 h, cooled to obtain a solid electrolyte tube. In this experiment, the standard hydrogen reference electrode,the hydrogen sensor determination of the composition of the molten aluminum in industrial hydrogen. Explore the process parameters Ca Zr0.9In0.102。95。proton conductor tube. After sintering, the green strength was obtained as a dark gray solid electrolytic tube is preferably, a hydrogen sensor which measures the composition of the molten aluminum alloy in the hydrogen content. The use of the sensor can be achieved online,continuous, rapid measurement of molten aluminum hydroxide. The Ca Zr0.9In0.102。95。High temperature proton conductor made into a hydrogen pump, the same principle adopted by electrochemical experiments conducted dehydrogenation of liquid aluminum, then you can also use concentration cell method dehydrogenation test results, the measurement of molten aluminum dehydrogenation after the hydrogen content. It was found that in a relatively short period of time significantly reduces the hydrogen content of molten aluminum, while the size of the electric field applied voltage and the duration of the applied voltage will have an impact on theeffectiveness and time of dehydrogenation. In the dehydrogenation of the molten aluminum can be used simultaneously in the argon gas, and other methods to remove the electromagnetic stirring of other inclusions.
Keywords/Search Tags:Hydrogen Sensor, High temperature proton conductor, Hydrogen pump
PDF Full Text Request
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