Preparation and Application of Copper Matrix Composite Powders Containing Carbide Forming Element Ti for Producing Diamond Tools

被引：0
|
作者：
Li S. [1 ,2 ]
Pang P. [3 ]
Zhang J. [1 ,2 ]
Zhang S. [1 ]
Dai H. [1 ,2 ]
Li C. [1 ,2 ]
机构：
[1] Beijing General Research Institute For Nonferrous Metals, Beijing
[2] GRIPM Advanced Materials Co. Ltd., Beijing
[3] Torch High Technology Industry Development Center, Ministry of Science and Technology, Beijing
来源：
Xiyou Jinshu/Chinese Journal of Rare Metals | 2018年 / 42卷 / 08期
关键词：
Cu alloy composite powders; Diamond tools; Milling; diffusion; Ti;
D O I：
10.13373/j.cnki.cjrm.XY16120041
中图分类号：
学科分类号：
摘要：
The CuSn13Ti7 copper matrix composite containing carbide forming element Ti for matrix of diamond tools were prepared by the diffusion process. Properties of the powders were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), differential thermal analysis. The addition method of Ti was optimized by studying the milling process of Cu-Ti alloys under the protection of argon. Three element diffusion processes were studied, and the sintering application performances of the CuSn13Ti7 powders prepared by diffusion, which were compared with CuSn13Ti7 powders prepared by atomization. The results showed the proper process of ultrafine copper-titanium alloy powders was milling 72 h, and the ratio of balls and powder is 2:1. Stearic acid should be added to avoid the agglomeration of ultra-fine powder. The better diffusion-sintering process is 530℃ and 1 h 50 min. When the temperature is between 750 and 850℃, the sintering body of the CuSn13Ti7 powders prepared by diffusion had more stable and more excellent overall performances than the CuSn13Ti7 powders prepared by atomization, which include density, hardness and impact toughness. © Editorial Office of Chinese Journal of Rare Metals. All right reserved.
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页码：832 / 840
页数：8
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