Improvement of flow of an iron-copper-graphite powder mix through additions of nanoparticles

被引：12

作者：

Lapierre-Boire, Louis-Philippe ^{[1
,4
]}

Blais, Carl ^{[1
]}

Pelletier, Sylvain ^{[2
,5
]}

Chagnon, Francois ^{[3
]}

机构：

[1] Univ Laval, Dept Min Met & Mat Engn, 1065 Med, Quebec City, PQ G1V 0A6, Canada

[2] Natl Res Council Canada, Inst Ind Mat, 75 Blvd Mortagne, Boucherville, PQ J4B 6Y4, Canada

[3] Rio Tinto Met Powders, 1655 Marie Victorin, Sorel Tracy, PQ J3R 4R4, Canada

[4] Sorel Forge Ltd, 100 Rue Mccarthy, St Joseph De Sorel, PQ J3R 3M8, Canada

[5] Inst Rech Robert Sauve Sante & Securite Travail, 505 Boul Maisonneuve Ouest, Montreal, PQ H3A 3C2, Canada

来源：

POWDER TECHNOLOGY | 2016年 / 299卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Powder metallurgy; Nanoparticles; Flow; Apparent density; Additives; Lubricant; Graphite; Addition sequence; FORCES; SURFACES; ADHESION;

D O I：

10.1016/j.powtec.2016.05.046

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Nanoparticles of carbon black, silica and ferrous oxide were added to FC-0208 powder metallurgy blends prepared using ethylene bis stearamide as lubricant to investigate their influence on improving flowability of this formulation that tends to be cohesive. This study consisted in preparing multiple premixes having different quantities of nanoparticles of different types and evaluating their impact on flowability and apparent density according to MPIF standards. The important variables for the distribution of nanoparticles on the surface of the host particles were the sequence of addition of all of the constituents, the quantity of nanoparticles and the mixing time. It was possible to identify a condition presenting good flowability with a flow time of 34.9 s/50 g and an apparent density of 2.78 g/cm(3). (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：156 / 167

页数：12

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