Influence of the Composition and the Tungsten Particle Size on the Sintering of W-Cu Composites

机译：组成和钨粒度对W-Cu复合材料烧结的影响

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Sintering is an alternative technique for producing W-Cu composites, but the system has a low sinterability. The increase of the sintered density for such a material is a need. The sintering mechanisms of W-Cu composites is investigated and the influence of the copper content and the tungsten particle size is analyzed by dilatometric measurements. The evolution of the structure during sintering is described. Copper plays the most important role for promoting densification. The sintering between the copper particles in contact is responsible for the densification in the solid state, but the main contribution is the rearrangement of the tungsten particles when copper melts. The higher the copper content the higher is the densification of the material. The use of fine tungsten and copper powders leads to higher densities and avoids the formation of large pores as copper melts.

机译：烧结是生产W-Cu复合材料的另一种技术，但该系统的烧结性较低。需要增加这种材料的烧结密度。研究了W-Cu复合材料的烧结机理，并通过膨胀测量法分析了铜含量和钨粒度的影响。描述了烧结过程中结构的演变。铜在促进致密化方面起着最重要的作用。接触的铜粒子之间的烧结是固态致密化的原因，但主要的贡献是铜熔化时钨粒子的重排。铜含量越高，材料的致密化越高。使用细小的钨粉和铜粉会导致更高的密度，并避免在铜熔化时形成大孔。

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来源
《Powder metallurgy world congress amp; exhibition》|2010年|p.65-74|共10页
会议地点 Florence(IT);Florence(IT)
作者
Francine Alves da Costa; Angelus Giuseppe Pereira da Silva; Francisco Ambrozio Filho; Uilame Umbelino Gomes;
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作者单位

Departamento de Ciencias Ambientais, UFERSA, 59625-900, Mossord, RN, Brazil;

rnLaborat6rio de Materials Avangados, UENF, 280 15-620, Campos dos Goytacazes, RJ,Brazil;

rnDepartamento de Engenharia de Materials, FEI, Sao Bernardo do Campo, SP, Brazil;

rnDepartamento de Fisica Tedrica e Experimental, UFRN, 59072-970, Natal, RN, Brazil;

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原文格式 PDF
正文语种 eng
中图分类粉末冶金（金属陶瓷工艺）;
关键词
sintering; composites; tungsten-copper alloys;

机译：烧结;复合材料钨铜合金;

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1. Effects of tungsten particle size and copper content on densification of liquid-phase-sintered W-Cu [J] . John L. Johnson, Justin J. Brezovsky, Randall M. German Metallurgical and Materials Transactions A . 2005,第10期

机译：钨粒度和铜含量对液相烧结钨铜致密化的影响
2. Effects of Tungsten Particle Size and Copper Content on Densification of Liquid-Phase-Sintered W-Cu [J] . JOHN L. JOHNSON, JUSTIN J. BREZOVSKY, RANDALL M. GERMAN Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science . 2005,第10期

机译：钨粒度和铜含量对液相烧结钨铜致密化的影响
3. Sintering process and particles migration mechanism of rapid sintering of W-Cu composites [J] . Ke Sixuan, Feng Keqin, Zhou Hongling, Materials and Manufacturing Processes . 2017,第9a12期

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4. Influence of the Composition and the Tungsten Particle Size on the Sintering of W-Cu Composites [C] . Francine Alves da Costa, Angelus Giuseppe Pereira da Silva, Francisco Ambrozio Filho, Powder metallurgy world congress exhibitionPM . 2010

机译：组合物与钨粒径对W-Cu复合材料烧结的影响
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Influence of the Composition and the Tungsten Particle Size on the Sintering of W-Cu Composites

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