000051985 001__ 51985 000051985 005__ 20240709094343.0 000051985 0247_ $$2WOS$$aWOS:000238595200018 000051985 0247_ $$2ISSN$$a0044-3093 000051985 037__ $$aPreJuSER-51985 000051985 041__ $$aeng 000051985 082__ $$a670 000051985 084__ $$2WoS$$aMetallurgy & Metallurgical Engineering 000051985 1001_ $$0P:(DE-Juel1)VDB62057$$aLakshmi-Narsimhan, T. S.$$b0$$uFZJ 000051985 245__ $$aActivity Measurements on the Al-rich Region of Ni-Al System - A High Temperature Mass Spectrometric Study : Dedicated to Prof. Dr. Ferdinand Sommer on the occasion of his 65th birthday 000051985 260__ $$aMünchen$$bHanser$$c2006 000051985 300__ $$a461 - 470 000051985 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article 000051985 3367_ $$2DataCite$$aOutput Types/Journal article 000051985 3367_ $$00$$2EndNote$$aJournal Article 000051985 3367_ $$2BibTeX$$aARTICLE 000051985 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000051985 3367_ $$2DRIVER$$aarticle 000051985 440_0 $$015321$$aInternational Journal of Materials Research = Zeitschrift für Metallkunde$$v97$$x1862-5282$$y4 000051985 500__ $$aRecord converted from VDB: 12.11.2012 000051985 520__ $$aSystematic vaporisation studies on the Ni-Al system with 0.32 <= x(Ni) <= 0.50 were carried out in the temperature range 1077-1592 K by Knudsen effusion mass spectrometry. While Al(g) was the vapour species observed over all the samples, Ni(g) was also detected over samples with the compositions x(Ni) = 0.50 and 0.49. From the p(Al)-T relations, activities of Al, and subsequently activities of Ni (by Gibbs-Duhem integration) were obtained. Moreover, partial and integral molar enthalpies and Gibbs energies of formation were evaluated. The variation of activities and other thermodynamic properties with composition are discussed. The enthalpy and Gibbs energy of formation of Ni0.5Al0.5(s) at 298.15 K were obtained as Delta H-f(m)o = -62.1 +/- 4.2 U mol and A(f)G(m)(o) = -57.7 +/- 1.2 U mol respectively. This is the first time that a systematic mass spectrometric investigation has been carried out on the aluminium rich region of Ni-Al system where the vacancy concentration in the NiAl phase can be as high as 10%. 000051985 536__ $$0G:(DE-Juel1)FUEK402$$2G:(DE-HGF)$$aRationelle Energieumwandlung$$cP12$$x0 000051985 588__ $$aDataset connected to Web of Science 000051985 65320 $$2Author$$anickel aluminides 000051985 65320 $$2Author$$aKnudsen effusion mass spectrometry 000051985 65320 $$2Author$$aactivities 000051985 65320 $$2Author$$apartial and integral molar properties 000051985 650_7 $$2WoSType$$aJ 000051985 7001_ $$0P:(DE-Juel1)VDB28018$$aKath, D.$$b1$$uFZJ 000051985 7001_ $$0P:(DE-Juel1)VDB2898$$aMarkus, T.$$b2$$uFZJ 000051985 7001_ $$0P:(DE-Juel1)VDB2710$$aHilpert, K.$$b3$$uFZJ 000051985 773__ $$0PERI:(DE-600)2128058-7$$gVol. 97, p. 461 - 470$$p461 - 470$$q97<461 - 470$$tInternational journal of materials research$$v97$$x1862-5282$$y2006 000051985 909CO $$ooai:juser.fz-juelich.de:51985$$pVDB 000051985 915__ $$0StatID:(DE-HGF)0010$$2StatID$$aJCR/ISI refereed 000051985 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR 000051985 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded 000051985 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection 000051985 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List 000051985 9141_ $$y2006 000051985 9131_ $$0G:(DE-Juel1)FUEK402$$bEnergie$$kP12$$lRationelle Energieumwandlung$$vRationelle Energieumwandlung$$x0 000051985 9201_ $$0I:(DE-Juel1)VDB2$$d31.12.2006$$gIWV$$kIWV-2$$lWerkstoffstruktur und Eigenschaften$$x0 000051985 970__ $$aVDB:(DE-Juel1)81654 000051985 980__ $$aVDB 000051985 980__ $$aConvertedRecord 000051985 980__ $$ajournal 000051985 980__ $$aI:(DE-Juel1)IEK-2-20101013 000051985 980__ $$aUNRESTRICTED 000051985 981__ $$aI:(DE-Juel1)IMD-1-20101013 000051985 981__ $$aI:(DE-Juel1)IEK-2-20101013