Heat Capacity of the RBiGeO5(R = Sm–Yb, Y) andBiGeO5 (R1 = Y; R2 = Pr, Nd) Germanates.

Authors :: Denisova, L. T.
Kargin, Yu. F.
Belousova, N. V.
Irtyugo, L. A.
Denisov, V. M.
Beletskii, V. V.
Source :: Inorganic Materials; Sep2020, Vol. 56 Issue 9, p962-967, 6p
Publication Year :: 2020
Abstract: The R<subscript>x</subscript>Bi<subscript>2</subscript><subscript>– x</subscript>GeO<subscript>5</subscript> (R = Sm–Yb, Y) and BiGeO<subscript>5</subscript> (R<superscript>1</superscript> = Y, R<superscript>2</superscript> = Pr, Nd) germanates have been prepared by solid-state reactions, by sequential firing of oxide mixtures in air in the temperature range 1003–1223 K. Their heat capacity has been determined by differential scanning calorimetry. The C<subscript>p</subscript>(T) data have been shown to be well represented by the classic Maier–Kelley equation in the range 350–1000 K. [ABSTRACT FROM AUTHOR]

Subjects :: HEAT capacity
YTTERBIUM
DIFFERENTIAL scanning calorimetry
ATMOSPHERIC temperature

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