000029435 001__ 29435
000029435 005__ 20180210143025.0
000029435 0247_ $$2DOI$$a10.1116/1.1355761
000029435 0247_ $$2WOS$$aWOS:000168922300037
000029435 037__ $$aPreJuSER-29435
000029435 041__ $$aeng
000029435 082__ $$a530
000029435 084__ $$2WoS$$aMaterials Science, Coatings & Films
000029435 084__ $$2WoS$$aPhysics, Applied
000029435 1001_ $$0P:(DE-Juel1)VDB3067$$aSchober, T.$$b0$$uFZJ
000029435 245__ $$aElectrically operated hydrogen and oxygen vacuum leaks using ceramic high-temperature ionic conductors
000029435 260__ $$aNew York, NY$$bInst.$$c2001
000029435 300__ $$a958 - 962
000029435 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
000029435 3367_ $$2DataCite$$aOutput Types/Journal article
000029435 3367_ $$00$$2EndNote$$aJournal Article
000029435 3367_ $$2BibTeX$$aARTICLE
000029435 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000029435 3367_ $$2DRIVER$$aarticle
000029435 440_0 $$03987$$aJournal of Vacuum Science and Technology A$$v19$$x0734-2101
000029435 500__ $$aRecord converted from VDB: 12.11.2012
000029435 520__ $$aCeramic high-temperature proton conductor tubes (BaZr0.9Y0.1O3-x, CaZr0.9In0.1O3-x and Ba3Ca1.18Nb1.82O9-x) were found to be suited for introducing hydrogen into a vacuum system. Leak rates below 10(-8) mbar Vs for the assembly, consisting of an active and an 8YSZ support tube, were achieved. The partial pressure of hydrogen in the vacuum system increased lineally with the electric current J flowing through the proton conductor. The other relevant partial pressures were not affected. Measuring the throughput during operation of the hydrogen source showed that within experimental error the total current is used to transport protons to the cathode (transport number t(H) approximate to 1). The number of moles of H-2 pumped into the system per second is given by J/2F. Thus, the device can be used to precisely introduce high purity Hz under current control, and with a response time of a few seconds only, into the vacuum. Similarly, 8YSZ tubes are suitable fur the pumping of high purity O-2 into a system with a rate given by J/4F moles of O-2/s. Since the amount of H-2 or O-2 introduced is precisely known, the present devices can be used for pressure calibration when the local effective pumping speed is known, or else to measure pumping speeds or conductances when accurate pressure measurements are available. (C) 2001 American Vacuum Society.
000029435 536__ $$0G:(DE-Juel1)FUEK54$$2G:(DE-HGF)$$aFestkörperforschung für die Informationstechnik$$c23.42.0$$x0
000029435 588__ $$aDataset connected to Web of Science
000029435 650_7 $$2WoSType$$aJ
000029435 7001_ $$0P:(DE-Juel1)130836$$aMeuffels, P.$$b1$$uFZJ
000029435 773__ $$0PERI:(DE-600)1475424-1$$a10.1116/1.1355761$$gVol. 19, p. 958 - 962$$p958 - 962$$q19<958 - 962$$tJournal of vacuum science & technology / A$$v19$$x0734-2101$$y2001
000029435 909CO $$ooai:juser.fz-juelich.de:29435$$pVDB
000029435 9131_ $$0G:(DE-Juel1)FUEK54$$bInformationstechnik$$k23.42.0$$lGrundlagenforschung zur Informationstechnik$$vFestkörperforschung für die Informationstechnik$$x0
000029435 9141_ $$y2001
000029435 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000029435 9201_ $$0I:(DE-Juel1)VDB35$$d31.12.2003$$gIFF$$kIFF-EKM$$lElektrokeramische Materialien$$x0
000029435 970__ $$aVDB:(DE-Juel1)2642
000029435 980__ $$aVDB
000029435 980__ $$aConvertedRecord
000029435 980__ $$ajournal
000029435 980__ $$aI:(DE-Juel1)PGI-7-20110106
000029435 980__ $$aUNRESTRICTED
000029435 981__ $$aI:(DE-Juel1)PGI-7-20110106