Magnetic properties of a mass-enhanced ferromagnet U2PtSi3

Sato, Nobuya; Kagawa, M.; Tanaka, Katsunori; Takeda, Nobuo; Satoh, Toshiyuki; Komatsubara, T.

doi:10.1016/0304-8853(92)91373-2

Cited by 24 publications

(5 citation statements)

References 2 publications

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“…4. Values for c p increase linearly over the entire measurement range, with the exception of the endothermic peak with an onset at 723 K. Sato et al and Miyadai et al determined the heat capacity of U 3 Si 5 for T < 40 K in a magnetometer [11,12], which is the only c p data in the literature to the authors' knowledge.…”

Section: Heat Capacitymentioning

confidence: 96%

“…Due to the complex nature of modeling the anharmonic term, it is common for this term to be summed with the electronic term as ðb þ cÞT, where b and c are the anharmonic and electronic constants, respectively. By expanding the Debye model, one can solve for the linear component using (see [19, and references therein]): from this study is 30.5 mJ mol À1 K À2 (U 3 Si 5 basis), which is within 0.5% with the value calculated from low temperature heat capacity data [11,12]. A value of 183 K is calculated for H D based on the slope of the aforementioned fit.…”

Section: Fundamental Contributions To the Molar Heat Capacity Of U 3 mentioning

confidence: 99%

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Thermophysical properties of U3Si5 to 1773 K

White

Nelson

Byler

et al. 2015

Journal of Nuclear Materials

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a b s t r a c tPossible use of U 3 Si 5 as a nuclear reactor fuel requires knowledge of its thermophysical properties as a function of temperature. While limited data is available for U-Si compounds containing higher uranium densities, no investigations of U 3 Si 5 have been presented in the literature to date. High purity U 3 Si 5 was fabricated to facilitate a set of experiments to determine the coefficient of thermal expansion, heat capacity, thermal diffusivity, and thermal conductivity from room temperature to 1773 K. Each measurement on nearly stoichiometric U 3 Si 5 showed the existence of a phase transformation at 723 K, which is not consistent with the most recently published phase diagram.

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Section: Heat Capacitymentioning

confidence: 96%

Section: Fundamental Contributions To the Molar Heat Capacity Of U 3 mentioning

confidence: 99%

Thermophysical properties of U3Si5 to 1773 K

White

Nelson

Byler

et al. 2015

Journal of Nuclear Materials

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“…Uranium ternary compounds U 2 XSi 3 exhibit a variety of magnetic properties including spin glass behaviour (X = Pt [1][2][3][4][5], Pd [3,4,6] and Au [3,4]), paramagnetic ground state (X = Fe [3][4][5][7][8][9], Ru [3,4,9,10] and Os [3,4]), and ferromagnetic cluster glass behaviour (X = Rh [3,4,11] and Ir [3,4,12]). Recently these magnetic properties have revealed a significant relationship with their crystal structures as listed in table 1.…”

Section: Introductionmentioning

confidence: 99%

Direct observation of the microstructure in cluster glass compound U₂IrSi₃

Yamamura

Shiokawa

2006

J. Phys.: Condens. Matter

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We have examined the structure of a U(2)IrSi(3) compound exhibiting ferromagnetic cluster glass behaviour by means of electron diffraction observation and high-resolution electron microscopy. The structure of U(2)IrSi(3) has been proposed as a new one of the U(2)RuSi(3)-type with a short-range ordered double stacking sequence of the U(2)RuSi(3)-type structure along the c-axis, and long-range ordered atomic arrangements in the a-b plane. The calculated patterns reproduce the characteristic features of observed electron patterns well. The Fourier-filtered high-resolution image clearly exhibits a micro-domain structure, which is considered to relate directly to the origin of the observed cluster glass behaviour in U(2)IrSi(3).

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“…Powder material was sealed inside of a low background static atmosphere polymer holder. Reference files are included for USi-01-086-0854[13] and U 3 Si 5 -04-003-3432[20]. An inset is included of the intermediate scan region where many of the phases overlap.…”

mentioning

confidence: 99%

Thermophysical properties of USi to 1673 K

White

Nelson

Dunwoody

et al. 2016

Journal of Nuclear Materials

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Consideration of uranium silicide compounds as candidate nuclear reactor fuels requires the accurate knowledge of their thermophysical properties as a function of temperature. Stoichiometric USi has received little attention in the literature with regard to property characterization. This absence of data prevents modeling and simulation communities from predicting performance of uranium silicide fuels that are either nominally USi itself, or are designed with other uranium silicide phases but may include appreciable fractions of USi introduced as a result of the fuel synthesis or fabrication process. This study was undertaken to quantify the thermal expansion coefficient, specific heat capacity, thermal diffusivity, and thermal conductivity of USi from ambient conditions to just below the peritectic decomposition of the compound. Stoichiometric samples that were prepared by arc melting and powder metallurgical routes for thermophysical property measurements exhibited 94% USi phase, with the balance being U 3 Si 5 phase that likely formed during the solidification process. An energetic phase transformation was observed at 723 K, which is attributed to the inclusion of the secondary U 3 Si 5 phase.

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Magnetic properties of a mass-enhanced ferromagnet U2PtSi3

Cited by 24 publications

References 2 publications

Thermophysical properties of U3Si5 to 1773 K

Thermophysical properties of U3Si5 to 1773 K

Direct observation of the microstructure in cluster glass compound U₂IrSi₃

Thermophysical properties of USi to 1673 K

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Magnetic properties of a mass-enhanced ferromagnet U2PtSi3

Cited by 24 publications

References 2 publications

Thermophysical properties of U3Si5 to 1773 K

Thermophysical properties of U3Si5 to 1773 K

Direct observation of the microstructure in cluster glass compound U2IrSi3

Thermophysical properties of USi to 1673 K

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Product

Resources

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Direct observation of the microstructure in cluster glass compound U₂IrSi₃