FeAs: Heat capacity, enthalpy increments, other thermodynamic properties from 5 to 1350 K, and magnetic transition
dc.contributor.author | Gonzalez-Alvarez, Domingo | en_US |
dc.contributor.author | Gronvold, Fredrik | en_US |
dc.contributor.author | Falk, Bengt G. | en_US |
dc.contributor.author | Westrum, Jr. , Edgar F. | en_US |
dc.contributor.author | Blachnik, R. | en_US |
dc.contributor.author | Kudermann, G. | en_US |
dc.date.accessioned | 2006-04-07T20:58:32Z | |
dc.date.available | 2006-04-07T20:58:32Z | |
dc.date.issued | 1989-04 | en_US |
dc.identifier.citation | Gonzalez-Alvarez, Domingo, Gronvold, Fredrik, Falk, Bengt, Westrum, Jr., Edgar F., Blachnik, R., Kudermann, G. (1989/04)."FeAs: Heat capacity, enthalpy increments, other thermodynamic properties from 5 to 1350 K, and magnetic transition." The Journal of Chemical Thermodynamics 21(4): 363-373. <http://hdl.handle.net/2027.42/28185> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6WHM-4CRHC6N-X8/2/6eed3b1cf06191ffa2b2ab09b75c8814 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/28185 | |
dc.description.abstract | The heat capacity of iron monoarsenide has been determined by adiabatic calorimetry from 5 to 1030 K and by drop calorimetry relative to 298.15 K over the range 875 to 1350 K. A small [lambda]-type transition is observed at TN = (70.95+/-0.02) K. It is related to the disappearance of a doubly helically ordered magnetic-spin structure on heating. The obviously cooperative entropy increment of transition is only [Delta]trsSmo/R = 0.021. The higher-temperature heat capacity rises considerably above lattice expectations. Part of the rise is ascribed to low-spin electron redistribution in iron, while the further excess above 800 K presumably arises from a beginning low- to high-spin transition, possibly connected with interstitial defect formation in the MnP-type structure. FeAs melts at about 1325 K with [Delta]fusHmo = 6180R [middle dot] K. Thermodynamic functions have been evaluated and the values of Cp, m(T), Smo(T), Hmo(T), and [Phi]mo(T), are 6.057R, 7.513R, 1177R [middle dot] K, and 3.567R at 298.15 K, and 8.75R, 16.03R [middle dot] K, and 9.745R at 1000 K. | en_US |
dc.format.extent | 757175 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | FeAs: Heat capacity, enthalpy increments, other thermodynamic properties from 5 to 1350 K, and magnetic transition | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Materials Science and Engineering | en_US |
dc.subject.hlbsecondlevel | Chemistry | en_US |
dc.subject.hlbsecondlevel | Chemical Engineering | en_US |
dc.subject.hlbsecondlevel | Biological Chemistry | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, U.S.A. | en_US |
dc.contributor.affiliationum | Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, U.S.A. | en_US |
dc.contributor.affiliationother | Facultad de Ciencias de la Universidad de Zaragoza, Departamento de Fisica Fundamental, 5009, Zaragoza, Spain | en_US |
dc.contributor.affiliationother | Chemical Institute, University of Oslo, Blindern, Oslo 3, Norway | en_US |
dc.contributor.affiliationother | Chemical Institute, University of Oslo, Blindern, Oslo 3, Norway | en_US |
dc.contributor.affiliationother | Technical University, Siegen, Federal Republic of Germany | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/28185/1/0000637.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0021-9614(89)90137-7 | en_US |
dc.identifier.source | The Journal of Chemical Thermodynamics | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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