Synthesis of Nanocrystalline Boron Carbide by Direct Microwave Carbothermal Reduction of Boric Acid

Figure 3

XRD patterns of R4B (a) and R8B (b) powders reacted at different power levels: 1.8 kW (R4B-1 and R8B-1) and 2.1 kW (R4B-2 and R8B-2), obtained in only 20 min of reaction, showing crystalline boron carbide synthesis.

(a)

(b)