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Automated, low-temperature dielectric relaxation apparatus for measurement of air-sensitive, corrosive, hygroscopic, powdered samples
(1999-07)
An automated apparatus for dielectric determinations on solid samples was designed to allow
cryogenic measurements on air-sensitive, corrosive, hygroscopic, powdered samples, without
determination of sample thickness, ...
Dynamics of anions and cations in cesium hydrogensulfide (CsHS, CsDS): Neutron and x-ray diffraction, calorimetry and proton NMR investigations
(2002-09)
Protonated and deuterated samples of the hydrogensulfide of cesium were studied by
high-resolution neutron powder diffraction, calorimetry and proton NMR investigations in a wide
temperature range. Primarily due to ...
Thermal conductivity of an organic clathrate: Possible generality of glasslike thermal conductivity in crystalline molecular
(1997-04)
No abstract available.
Why is there no low-temperature phase transition in NaOH?
(1999-02)
Although NaOH and NaOD exhibit parallel polymorphism at high temperatures, NaOD exhibits a
low-temperature phase transition to a hydrogen-bonded antiferroelectric phase and no comparable
transition has been found in NaOH. ...
Structure, thermal, and transport properties of the clathrates Sr8Zn8Ge38, Sr8Ga16Ge30, and Ba8Ga16Si30
(2004-07)
The structural parameters, thermal properties, and transport properties of three type I
clathrates, namely Sr8Zn8Ge38, Sr8Ga16Ge30, and Ba8Ga16Si30, have been determined at or below room
temperature. The structural ...
Apparatus for dynamical thermal measurements of low-thermal diffusivity particulate materials at subambient temperatures
(1998-12)
Apparatus for measurement of thermal diffusivity of particulate matter in the temperature range
of 10-300 K is described. The basis of the measurement is modulated radial heat flow into a
cylindrical sample, with a relatively ...
Thermal and lattice dynamical properties of Na8Si46 clathrate
(2001-07)
The experimental heat capacity of Na8Si46 has been determined from 35-300 K, and its lattice
parameters have been measured over the range 100-330 K. The experimental heat capacity and the
thermal-expansion coefficient ...
Transport properties of Na8Si46
(2001-10)
We report on transport properties of polycrystalline Na8Si46 in the temperature range 10 to 300
K. The compound is a type I clathrate with Na incorporated into polyhedra formed by framework Si
atoms. Seebeck coefficient ...
High-throughput resistivity apparatus for thin-film combinatorial libraries
(2005-09)
An apparatus, capable of measuring the dc resistance versus temperature of a 49-member library
prepared by thin-film deposition techniques was designed and tested. The library is deposited by dc
magnetron sputtering onto ...
Structural principles and amorphouslike thermal conductivity of Na-doped Si clathrates
(2000-07)
The postulated low thermal conductivity and the possibility of altering the electronic
conductivity of metal-doped clathrates with semiconducting host elements have stimulated great
interest in exploring these compounds ...