Fig. 2: Robust mechanical properties and broad applicability of the graded ball milling strategy. | Nature Communications

Fig. 2: Robust mechanical properties and broad applicability of the graded ball milling strategy.

From: Microstructural transformation for robust and high-efficiency Zintl thermoelectrics

Fig. 2

Comparison of mechanical properties between L-FE and H-FE samples: a modified small punch (MSP) strength, b compressive strength, c true stress and corresponding fracture energy, d Vickers hardness, and e residual stress profiles. f The graded ball milling strategy is successfully extended to a wide range of AB2Sb2-based Zintl compounds (A = Yb, Mg, Ca, Sr, Ba; B = Mg, Zn, Cd). Insets show optical images of the synthesized samples (the diameters of all samples are 10 mm), highlighting their superior moldability and machinability compared to those produced by conventional methods. Here, we use Origin 2021 Software to calculate the box plots. Every point contains at least 5-time measurements. Error bars denote mean ± standard deviation.

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