The calorific properties of LiYF4 : Nd in the solid and liquid states

Lyapunov, K. M.; Baginskii, A. V.; Stankus, S. V.

doi:10.1007/bf02755581

Cited by 3 publications

(9 citation statements)

References 4 publications

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“…The deficiency in (4) of the linear and the square-law terms confirms the Hoch conclusion [5] about the cubic increase with temperature of the anharmonic vibrational heat capacity. The same result was obtained in [6,10] for the orthorhombic high purity phases of DyF 3 and HoF 3 . The extrapolation of the C P curve of the orthorhombic structure into the low temperatures region, made for comparison with the data from [11], is shown in Fig.…”

Section: Discussionsupporting

confidence: 84%

“…Our value of the heat capacity of the melt (131.8 J mole −1 K −1 ) agrees with the values in Refs. [6,10] for DyF 3 (137.4 J mole −1 K −1 ) and for HoF 3 (138.5 J mole −1 K −1 ). The mean value (136 J mole −1 K −1 ) can be offered as estimation of C P of the melt at T f for the other heavy REFs.…”

Section: Discussionmentioning

confidence: 99%

“…The LuF 3 enthalpy was measured in a high-temperature massive drop calorimeter [5,6]. All measurements were made in high purity argon atmosphere (99.992%).…”

Section: Methodsmentioning

confidence: 99%

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Experimental study of the enthalpy of lutetium trifluoride in solid and liquid states

Lyapunov

Baginskii

Stankus

2004

Journal of Alloys and Compounds

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

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Experimental study of the enthalpy of lutetium trifluoride in solid and liquid states

Lyapunov

Baginskii

Stankus

2004

Journal of Alloys and Compounds

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“…DTA curves for 35 and 60 mol% YF 3 show two endothermic events, the first peak characterizes an invariant reaction (e.g. eutectic or peritectic reaction) and the second broader peak marks the end of melting of the primary phase (YLF and a Data taken from Barin [7] and from Lyapunov et al [8]. b DSC data measured in this work and from [11].…”

Section: Resultsmentioning

confidence: 99%

“…Regarding the rare earth trifluorides, including YF 3 , Barin [7] collected the commonly used data. Lyapunov et al obtained YLF enthalpies and heat capacities in the solid and liquid state by the mixing method using a massive calorimeter [8].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic modeling of the LiF–YF3 phase diagram

Santos¹,

Klimm²,

Baldochi³

et al. 2012

Journal of Crystal Growth

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A thermodynamic optimization of the LiF−YF 3 binary phase diagram was performed by fitting the Gibbs energy functions to experimental data that were taken from the literature, as well as from own thermoanalytic measurements (DTA and DSC) on HF-treated samples. The Gibbs energy functions for the end member compounds were taken from the literature. Excess energy terms, which describe the effect of interaction between the two fluoride compounds in the liquid phase, were expressed by the Redlich-Kister polynomial function. The calculated phase diagram and thermodynamic properties for the unique formed compound, LiYF 4 , are in reasonable agreement with the experimental data.

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Avaliação dos diagramas de fase do sistema LiF-GdF3 - LuF3 utilizando termodinâmica computacional

Santos¹

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Não sou nada. Nunca serei nada. Não posso querer ser nada. À parte isso, tenho em mim todos os sonhos do mundo. Álvaro de Campos Aos meus pais, Severina e Antonio, por me concederem a aventura da existência. AGRADECIMENTOS Agradeço à Dra. Izilda Marcia Ranieri pela orientação competente e dedicada. Pelo incentivo e apoio constantes e pela amizade construída durante seis anos de trabalho. Ao Dr. Detlef Klimm, pela orientação frutífera e pelo modo, acolhedor e paciente, que me recebeu durante o período de doutorado sanduíche no Leibniz-Institut für Kristallzüchtung (IKZ-Berlim). Ao Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) pela concessão de bolsa no Brasil e no exterior, durante o doutorado sanduíche (SWE) no IKZ-Berlim. Ao DAAD (Deutscher Akademischer Austausch Dienst) pela seleção e apoio gerencial na realização do SWE. Ao Dr. Nilson Dias Vieira Jr., superintendente do IPEN, por permitir a realização deste trabalho e ao IPEN pela infraestrutura. À Dra. Sonia Licia Baldochi, gestora do Centro de Lasers e Aplicações e chefe do Laboratório de Crescimento de Cristais (LCC), por me acolher no CLA para realização desta pesquisa. Aos alunos do grupo de crescimento de cristais, Jair de Moraes, Horácio Marconi, Fernando Rodrigues e Gerson Nakamura, pela convivência harmoniosa e amizade nestes seis anos de trabalho.

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The calorific properties of LiYF4 : Nd in the solid and liquid states

Cited by 3 publications

References 4 publications

Experimental study of the enthalpy of lutetium trifluoride in solid and liquid states

Experimental study of the enthalpy of lutetium trifluoride in solid and liquid states

Thermodynamic modeling of the LiF–YF3 phase diagram

Avaliação dos diagramas de fase do sistema LiF-GdF3 - LuF3 utilizando termodinâmica computacional

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