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

Zou, Qian; Gong, Wei; Zeng, Xiaomei; Wu, Yupeng; Liu, J.; Zou, Sh.

doi:10.3103/s1063457609060082

Cited by 8 publications

(6 citation statements)

References 2 publications

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“…Analysis tests are performed to relevant rest samples and their heat analysis characteristics are compared, compared test samples are respectively [1,2] : Fig. 1 is contrastive curves between 663Cu with rare earth and pure 663 Cu, and Fig.…”

Section: Test Of the Differential Thermal Analysis (Dta) Of The Mater...mentioning

confidence: 99%

“…Hot pressed diamond tool composites are composed of diamond and the diamond matrix, which includes cemented carbide wrapped powder with WC as the framework, and having both 663Cu (bronze) and Co-based etc. wrapped powder as the main composition [1][2][3] , all together of which constitute the most common matrix formulation of hot pressed diamond tool composites. This research takes mainly a preparation of wrapped powder of Fe powder with rare earth (RE) La(or Ce) as key point [1,2] , adopt adding rare earth La(or Ce) into Fe powder , this is the wrapped powder of Fe-based with rare earth , and which it could replaces the above-mentioned expensive Co-based wrapped powder matrix composite formulation.…”

Section: Introductionmentioning

confidence: 99%

“…wrapped powder as the main composition [1][2][3] , all together of which constitute the most common matrix formulation of hot pressed diamond tool composites. This research takes mainly a preparation of wrapped powder of Fe powder with rare earth (RE) La(or Ce) as key point [1,2] , adopt adding rare earth La(or Ce) into Fe powder , this is the wrapped powder of Fe-based with rare earth , and which it could replaces the above-mentioned expensive Co-based wrapped powder matrix composite formulation. Since the addition level of rare earth is quite small, generally below 1% of the gross amount of binding agent, the cost of Fe-based diamond tool composites with rare earth is very low.…”

Section: Introductionmentioning

confidence: 99%

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DTA of Rare-Earth Fe-Based Matrix Composites for Diamond Tools

Zou

2012

AMR

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Research focused mainly on Fe-based matrix composite (the wrapped diamond), used Fe powder to replace the expensive cobalt powder (Co-based matrix composite), and add the rare earth (RE) elements to reinforce the related physical properties of this Fe-based matrix composite for diamond tools. Conducted on the related matrix composite differential thermal analysis (DTA), in particular Fe-based matrix composite containing 35% iron powder (with RE or without RE) Were discussed for DTA and the package insert forces. DTA and the analysis is consistent with the empirical formula. By hot pressing the composite with diamond as the research object, having researched the relationship among the heat capacity (CP) at constant pressure and other related physical parameters （the package inserts force and E etc.）. Take 35%Fe-based powder composite materials for diamond tools (with RE or without RE) as the research objiect, combining analysis of the problem for the porosity, and the densification, and the package inserts force, and the DTA tests, which the addition manner of rare earth, add form , and quantity are determined, so that the changes laws of DTA curve and heat capacity (CP) of Fe-based composite containing 35% iron powder( with the RE) are similar to the that of pure Co composites. Apply these laws to improve the hot pressing technology and mechanical properties of the diamond tools (bending strength, impact toughness, hardness and porosity) and so on

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Section: Test Of the Differential Thermal Analysis (Dta) Of The Mater...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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DTA of Rare-Earth Fe-Based Matrix Composites for Diamond Tools

Zou

2012

AMR

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“…Cu-P alloy in the preparation of the matrix material can improve the efficiency and prolong the service life [5]. Cu-Ce alloy can increase diamond retention capacity [6], Sn and Bi can decrease the sintering temperature [7].…”

Section: Introductionmentioning

confidence: 99%

Influence of Sn and Bi Additions on the Structures and Wear Properties of Cu–Sn–P–Ce cBN Tools

Han

Jin

et al. 2018

J. Superhard Mater.

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Influence of Sn and Bi additions on the structures and wear properties of Cu-Sn-P-Ce cBN toolsIn this work Sn and Bi were added to Cu-Sn-P-Ce for improving its microstructures and properties. Structures of the three matrices were investigated by XRD, SEM and EDS. The Cu 41 Sn 11 became the main microstructure with some pores, the grinding ratio increased, and the grinding efficiency improved slightly with the addition of Sn to Cu-Sn-P-Ce. Bi was distributed in the form of simple substance, the grinding ratio increased, and the grinding efficiency greatly reduced with the addition of Bi to Cu-Sn-P-Ce.

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“…The development of new ferrous matrix materials, [11][12][13] and new routes to produce these powders, 14 could not only allow full use of the advantageous properties of iron base materials but also mitigate the disadvantages in sintering and cutting process mentioned above. This has proved an effective approach, used widely for middle and low-end diamond tools.…”

mentioning

confidence: 99%