Accupyc 2 1340

Manufactured by Shimadzu

Sourced in Japan

The AccuPyc II 1340 is a gas displacement pycnometer used for determining the true volume and density of solid materials. It measures the volume of a sample by measuring the pressure change of helium gas in a calibrated sample chamber.

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Lab products found in correlation

Jem 2100plus instrument, by JEOL (1 mentions) Jsm 6610a, by JEOL (1 mentions) Thermo plus 8110, by Rigaku (1 mentions) Smartlab, by Rigaku (1 mentions) Labram hr800, by Horiba (1 mentions)

3 protocols using accupyc 2 1340

Comprehensive Characterization of Powders

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The obtained powders were characterized by XRD with Cu-Kα radiation (Smart Lab, Rigaku, Japan) and Raman spectroscopy with a 325 nm He–Cd laser (LabRAM HR800, Horiba Ltd., Japan).
The densities of the compact samples (d₁) were calculated from the weights and volumes of the pellets, and those of the powders (d₂) were measured using a gas pycnometer (AccuPyc II 1340, Shimadzu, Japan). The relative density was defined as d₁ / d₂.
The structure of the pellet cross-section was observed using scanning electron microscopy (SEM; JSM-6610A, JEOL, Japan).
A DTA curve was obtained for the powder sample in an Al pan under a N₂ atmosphere using a thermal analyzer (Thermo-plus 8110, Rigaku, Japan). The heating rate was 10 °C min⁻¹ from room temperature to 500 °C.
TEM was performed using a JEM-2100Plus instrument at an acceleration voltage of 200 kV (JEOL, Japan). High-resolution TEM (HR-TEM) images were obtained using a high-speed camera (OneView, Gatan) to minimize electron damage. The synthesized powders were dispersed on carbon grids in an Ar atmosphere in a glove box. The specimens were transferred without exposure to air using a vacuum transfer holder (Mel-Build Co.).

Motohashi K., Higuchi H., Nakajima H., Mori S., Sakuda A, & Hayashi A. (2024). Mechanochemical synthesis of fluoride-ion conducting glass and glass–ceramic in ZrF4–BaF2 binary system. Scientific Reports, 14, 8808.

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Thermal Conductivity Measurement of Sintered Compacts

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The
total thermal conductivity
(κ_tot) of each sintered compact
was calculated using κ_tot= DC_Pd, where d, D, and C_P are the
density, thermal diffusivity, and heat capacity of the sintered compact,
respectively. The thermal diffusivity was measured directly using
an LFA 457 MicroFlash laser flash apparatus (Netzsch, Germany) from
300 to 973 K under an Ar flow of 100 mL min^–1. The
heat capacities of the compacts were determined indirectly using an
LFA 457 with a Pyroceram 9606 reference standard. The coins used for
the out-of-plane measurements were typically ∼10 mm in diameter
and ∼2 mm thick. Those used for the in-plane measurements were
∼6 × 6 mm² square plates that were 2 mm thick.
The densities of the sintered compacts were determined by Archimedes’
method using an AccuPyc II 1340 pycnometer (Shimadzu, Japan). The
estimated relative uncertainty of the thermal conductivity measurements
was within 6%. The combined relative uncertainty for all of the measurements
to determine ZT was approximately 11%.

Sotnikov A.V., Jood P, & Ohta M. (2020). Enhancing the Thermoelectric Properties of Misfit Layered Sulfides (MS)1.2+q(NbS2)n (M = Gd and Dy) through Structural Evolution and Compositional Tuning. ACS Omega, 5(22), 13006-13013.

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Measuring Powder Density and Relative Density

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Densities of the synthesized powders were measured using an argon gas pycnometer (AccuPycII 1340; Shimadzu Corp.) placed in an Ar-filled glove box. Powder density was treated as including the closed pore in the particles. Relative density of the compressed pellet was calculated by dividing the apparent density by the powder density of the Li₂RuO₃-Li₂SO₄ active materials.

Nagao K., Nagata Y., Sakuda A., Hayashi A., Deguchi M., Hotehama C., Tsukasaki H., Mori S., Orikasa Y., Yamamoto K., Uchimoto Y, & Tatsumisago M. (2020). A reversible oxygen redox reaction in bulk-type all-solid-state batteries. Science Advances, 6(25), eaax7236.

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