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

Table 2

Reaction parameters and results of microwave carbothermal reaction.

Sample	Reaction time; (min)	Power; (kW)	Average crystallite size; (nm)	Corresponding chemical formula (A&T)
R4B-1	20	1.8	50.5	B4.91C
R4B-2	20	2.1	57.1	B5.05C