Doping Fe-based diamond tool matrix composites with a rare-earth element

• Date: 2009
• Main Authors: Zou, Q., Gong, W., Zeng, X., Wu, Y., Liu, J., Zou, Sh.
• Format: Article
• Language: English
• Published: Інститут надтвердих матеріалів ім. В.М. Бакуля НАН України 2009
• Series: Сверхтвердые материалы
• Subjects: Инструмент, порошки, пасты
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/63427
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Doping Fe-based diamond tool matrix composites with a rare-earth element / Q. Zou, W. Gong, X. Zeng, Y. Wu, J. Liu, Sh. Zou // Сверхтвердые материалы. — 2009. — № 6. — С. 67-74. — Бібліогр.: 3 назв. — англ.

The paper presents the experiments on adding rare-earth element cerium to diamond matrix composites. Based on the doping of rare earth in metal powders including tungsten carbide, a small amount of nickel, iron entirely replacing cobalt in diamond matrix and the process route of rare earth doping is indicated. The performance of matrix composites with and without rare-earth elements has been assessed. The results obtained show that the flexural strength, the hardness, and the impact ductility of matrix composites with rare-earth elements have been improved. The flexural strength and the impact ductility increased correspondently by 10—62 % and about 5 %, as compared to composites free of rare-earth elements. Rare-earth diamond tool matrix composites where Co was replaced with Fe, which provides a good practical service performanc, and a low price, have been successfully studied, corresponding diamond bits and saw blades have been manufactured.