All preparation steps were performed in an argon dry box. The Nd3−xTe4 samples were mechanochemically synthesized in a ball mill, using 99.9% Nd (Stanford Advanced Materials) and 99.999% Te (5N Plus Inc.) as precursors. The elements were combined in a stainless steel vial with stainless steel balls and milled in a SPEX SamplePrep 8000 for over 10 hours until homogeneous Nd3−xTe4 powders were synthesized. The powders were then loaded in to graphite dies and compacted using spark plasma sintering (SPS) at a pressure of 80 MPa and at temperatures above 1500 K. The Archimedes method was used to determine sample densities in toluene.
Sampleprep 8000
Manufactured by SPEX
Sourced in United States
The SamplePrep 8000 is a versatile and automated sample preparation system designed for efficient and consistent sample handling. It performs essential sample preparation tasks such as weighing, mixing, and aliquoting to ensure reliable and reproducible results. The SamplePrep 8000 is a compact and user-friendly instrument that can be seamlessly integrated into various laboratory workflows.
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Lab products found in correlation
2 protocols using sampleprep 8000
1
Mechanochemical Synthesis of Nd3-xTe4
2
Mechanochemical Synthesis of Sc2Te3
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Sc2Te3 was synthesized using a mechanochemical approach. Elemental Sc (99.9%, Chemistry Cabinet) and Te shot (99.999%, 5N Plus) were combined in an argon-filled glovebox and placed in a stainless-steel ball mill vial with stainless-steel balls. It was then ball milled (SPEX SamplePrep 8000, SPEX SamplePrep, Metuchen, NJ, USA) for over 10 h until a homogenous, black powder of Sc2Te3 was produced. The powder was then compacted in a 12.7-mm graphite die using spark plasma sintering (SPS) at a temperature above 1450 K and a pressure of 80 MPa for 30 min under vacuum. From geometric measurements, the ingot was found to have a density of 99% the theoretical value (Table S1 ). A sample was then cut from the ingot using a diamond saw and ground to a thickness of approximately 1 mm for high-temperature measurements.
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