HIGH-TEMPERATURE HEAT CONTENTS AND ENTROPIES OF THE SESQUIOXIDES OF ERBIUM, HOLMIUM, THULIUM, AND YTTERBIUM

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The heat contents of the sesquioxides of Er, Ho, Tm, and Yb (Er/sub 2/O/ sub 3/, Ho/sub 2/O/sub 3/, Tm/sub 2/O/sub 3/, and Yb/sub 2/O/sub 3/) in the cubic crystalline form were measured at 298 to 1,800 deg K. The Er and Ho sesquioxides gave regular heat content-temperature curves. Tm/sub 2/O/sub 3/ sesquioxide had a minor thermal anomaly near 1,680 deg K, with a heat absorption of 310 cal/mole; similarly, Yb/sub 2/O/sub 3/ had a minor anomaly near 1,365 deg K, with a heat absorption of 150 cal/mole. The heat content results are presented in both tabular form (at 100 ... continued below

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Pages: 10

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Pankratz, L.B. & King, E.G. July 1, 1962.

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The heat contents of the sesquioxides of Er, Ho, Tm, and Yb (Er/sub 2/O/ sub 3/, Ho/sub 2/O/sub 3/, Tm/sub 2/O/sub 3/, and Yb/sub 2/O/sub 3/) in the cubic crystalline form were measured at 298 to 1,800 deg K. The Er and Ho sesquioxides gave regular heat content-temperature curves. Tm/sub 2/O/sub 3/ sesquioxide had a minor thermal anomaly near 1,680 deg K, with a heat absorption of 310 cal/mole; similarly, Yb/sub 2/O/sub 3/ had a minor anomaly near 1,365 deg K, with a heat absorption of 150 cal/mole. The heat content results are presented in both tabular form (at 100 deg intervals) and in algebraic form. Entropy increments, corresponding to the tabulated heat content results, also are listed. (auth)

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Pages: 10

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  • Other Information: Orig. Receipt Date: 31-DEC-63

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  • Report No.: BM-RI-6175
  • Grant Number: None
  • DOI: 10.2172/4704455 | External Link
  • Office of Scientific & Technical Information Report Number: 4704455
  • Archival Resource Key: ark:/67531/metadc1035110

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  • July 1, 1962

Added to The UNT Digital Library

  • Oct. 18, 2017, 7:39 a.m.

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  • Oct. 24, 2017, 2:22 p.m.

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Pankratz, L.B. & King, E.G. HIGH-TEMPERATURE HEAT CONTENTS AND ENTROPIES OF THE SESQUIOXIDES OF ERBIUM, HOLMIUM, THULIUM, AND YTTERBIUM, report, July 1, 1962; United States. (digital.library.unt.edu/ark:/67531/metadc1035110/: accessed September 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.