Figure 2 | Scientific Reports

Figure 2

From: Hardness of Polycrystalline Wurtzite Boron Nitride (wBN) Compacts

Figure 2

(a) SEM micrography of the initial wBN powder. (b) wBN compact SEM micrograph synthesized by 20 GPa and 1,150 °C. (c) wBN + cBN compact electron microscope photo synthesized by 20 GPa and 1,250 °C. (d) cBN compact SEM micrograph synthesized by 20 GPa and 1,850 °C. Insert: The enlarged SEM micrograph of (d). (e) In samples synthesized at 20 GPa and different synthesis temperatures of 1,150 °C, 1,250 °C and 1,850 °C, the hardness is changed as a function of the load force.

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