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X-ray absorption spectroscopy studies of local structure and electronic properties of NaxSi136 (0 < x < 24) clathrates.
(2010)
The local structure and electronic properties were probed of Na-contg. type II Si clathrates by
x-ray absorption spectroscopy. The near-edge region of the spectrum is particularly sensitive to the
local structure surrounding ...
Thermal conductivity of (Er1-xYx)(2)Ti2O7 pyrochlore oxide solid solutions
(2012-08)
The thermal conductivities of pyrochlore oxide solid solutions of general formula
(Er1-xYx)(2)Ti2O7 with 0 <= x <= 1 have been determined for high-quality single crystals
aligned along the [110] direction, over the ...
Thermal, vibrational, and thermoelastic properties of Y2Mo3O12 and their relations to negative thermal expansion
(American Physical Society, 2014-07-21)
Y2 Mo3O12, a material that exhibits negative thermal expansion (NTE) from 10 to 1173 K, offers an excellent opportunity to examine relationships between NTE and other physical properties over a wide temperature range. We ...
The heat capacities of thermomiotic ScF3 and ScF3–YF3 solid solutions
(Springer, 2015-05-01)
Scandium trifluoride (ScF3) exists in a cubic ReO3 structure that exhibits negative thermal expansion from 10 to 1100 K, while substituted Sc1−x Y x F3 materials display the same behavior at room temperature but transition ...
Zero Thermal Expansion in ZrMgMo3O12: NMR Crystallography Reveals Origins of Thermoelastic Properties
(American Chemical Society, 2015-03-23)
The coefficient of thermal expansion of ZrMgMo3O12 has been measured and was found to be extremely close to zero over a wide temperature range including room temperature ( = (1.6 ± 0.2) × 10–7 K–1 from 25 to 450 °C by X-ray ...
Temperature dependence of thermal conductivity enhancement in single-walled carbon nanotube/polystyrene composites
(2010-02)
The thermal conductivity of single-walled carbon nanotube (SWCNT)/polystyrene composites,
prepared by a method known to produce a uniform distribution of SWCNT bundles on the micrometer
length scale, was measured in the ...
X-ray absorption spectroscopy studies of local structure and electronic properties of NaxSi136 (0 < x < 24) clathrates
(2010-10)
We have probed both the local structure and the electronic properties of Na-containing type II
Si clathrates by x-ray absorption spectroscopy. The near-edge region of the spectrum is particularly
sensitive to the local ...