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Qm sb type planetary high energy ball mill

Feb 13, 2012 Feb 13, 2012 Commercial powders of Mg (99.8%, 325 mesh, Tangshan) and B (96%, ~1 m, Tangshan) were used as the starting materials. Mg and B powders were weighed with the nominal composition of 1.05:2. HEBM was performed in a QM-1SP4 planetary ball mill (Nanjing NanDa Instrument Plant, China) under argon atmosphere (dry milling)

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  • LQJDQGSODVPDDFWLYDWHGVLQWHULQJ
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    75%Sb 2Te 3 in a QM-4H planetary ball mill for different time (3, 6, 9 and 12h) in purified argon atmosphere. Stainless steel vessels and balls were used and the weight ratio of ball to powder was kept at 10:1. Subsequently, the as-MAed powders were sintered under axial compressive stress of 40MPa in a PAS system. The heating rate was 40Kmin−1

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  • Formation of amorphous state by ball milling and
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  • Isotropic Mg3Sb2 compound prepared by solid-state
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    Feb 16, 2018 For another batch of samples, BM process was carried out in a high-energy planetary mill (QM-SB) with a speed of 1400 r/min under Ar atmosphere after undergoing the first step of SSR. The weight ratio of the balls to the powders (BPR) was 4:1. Subsequently, milled

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  • Reduction in thermal conductivity of Bi–Te alloys through
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  • Structural evolution of the Ti–Si–C system during
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  • Thermoelectric Conversion of Waste ... - Department of
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    4Sb 12 skutterudite compositionsand evaluate TE properties in a first step – Evaluate applicability for integrati on into advanced TE couples for waste heat recovery applications • Approach – Ball milling • High-energy ball mills: ≤ 15 g loads • Planetary ball mill: ≥

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