Effect of FeNi30 Powder Catalyst by Water Atomizing on Synthesis High-Grade Diamond


Article Preview

This paper described the preparation method for composing high-grade synthetic diamond by water atomizing using FeNi30 powder catalyst.The FeNi30 powder was corroded by the 100Mpa super high-pressure water atomizing technique and selecting organic RY corrosion inhibitor. Contrast test of the original FeNi30 powder and the treated FeNi30 powder on synthetic diamonds were conducted under super high-temperature and high-pressure using cubic press. The result shows that after the FeNi30 powder was corroded,the FeO phase and Fe3O4 phase could not longer be found by X-Ray analysis.Furthermore,the oxygen content of the powder increased up to 100PPM under the natural condition for one year. After the powder was mixed with graphite powder, diamond could be made by isostatic pressing method. Its color became darker and its TTI value increased slightly. However, its penetrability was still different from the high-grade synthetic diamond made by gas atomizing FeNi30 powder catalyst.



Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim




D. K. Cheng et al., "Effect of FeNi30 Powder Catalyst by Water Atomizing on Synthesis High-Grade Diamond ", Materials Science Forum, Vols. 534-536, pp. 41-44, 2007

Online since:

January 2007




[1] Qing Jie Ming, et al. Study On The Synthesis Of Diamond Using Fe-based Powder Catalyst, Diamond & Abrasives Engineering,2004,(6):1-3. (In Chinese).

[2] Zhang Xiaoli, The Comparation On Powder Catalyst And Slice Catalyst Synthesis System , Diamond & Abrasives Engineering, 2001, (6): 24-25. (In Chinese).

[3] Huang Peiyun, Powder Metallurgy, in Beijing: Metallurgy Industry Publishing-house, 2004, No. 3: 20-86. (In Chinese).

[4] Zhang Tiansheng, Inhibitor, in Beijing: Chemistry Industry Publishing-house, 2002, No. 2: 56-120. (In Chinese) Dongkai Cheng, born in 1976, engineer, occupied in research on preparation of ultrafine powder metallurgy techniques and new materials.