Effects of Fe additive on diamond crystallization from carbonyl nickel powders-C system under HPHT condition

Li Yong^a), Jia Xiao-Peng^b), Feng Yun-Guang^a), Fang Chao^b), Fan Li-Juan^a), Li Ya-Dong^b), Zeng Xiang^a), Ma Hong-An^b)

FTIR spectra of the diamonds synthesized from carbonyl nickel powders +Fe–C systems before and after annealing treatment at 1850 °C.