Fig. 1: Synthesis of ZrNiSn-based half-Heusler compounds with hierarchical structures through short-duration mechanical alloying and reactive sintering, leading to enhanced thermoelectric performance. | Nature Communications

Fig. 1: Synthesis of ZrNiSn-based half-Heusler compounds with hierarchical structures through short-duration mechanical alloying and reactive sintering, leading to enhanced thermoelectric performance.

From: High-performance ZrNiSn-based half-Heusler thermoelectrics with hierarchical architectures enabled by reactive sintering

Fig. 1

a Schematic of the reactive sintering process for ZrNiSn-based compounds and the development of hierarchical structures across multiple length scales during synthesis. b Lattice thermal conductivity (κL) and power factor (PF), and figure of merit (zT) of Zr0.75Hf0.25NiSn0.99Sb0.01 synthesized under different sintering temperatures and holding times. c Comparison of the zT value of Zr0.75Hf0.25NiSn0.99Sb0.01 with those of previously reported (Ti, Zr, Hf)NiSn-based materials synthesized using arc melting(AM), solid-state reaction, high-temperature self-propagation synthesis (SHS), and levitation melting (LM)16,17,22,30,31,32,33,34,35.

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