The effect of process control agent usage on the structural properties of MgB2 synthesized by high energy ball mill

被引:19
作者
Kurama, Haldun [1 ]
Erkus, Savas [1 ]
Gasan, Hakan [2 ]
机构
[1] Eskisehir Osmangazi Univ, Dept Min Engn, TR-26480 Eskisehir, Turkey
[2] Eskisehir Osmangazi Univ, Dept Mat & Met Engn, TR-26480 Eskisehir, Turkey
关键词
MgB2; Mechanical alloying; Spex mill; Process control agent; Toluene; SUPERCONDUCTING PROPERTIES; THERMODYNAMICS; DENSITY;
D O I
10.1016/j.ceramint.2017.05.274
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this study, the effects of the process control agent (toluene) usage on the product size, morphology and conversion level of precursor powders to magnesium diborate (MgB2) was investigated. The boron and magnesium powders were first milled in Spex mill and then subjected to sintering in tube furnace. It was found that the usage of toluene at milling stage remarkably affect the final product properties. The powder size of the milled sample treated with toluene decreased to the finer sizes, especially for increasing ball to powder weight ratio and milling times. However, lower conversion values calculated for treated samples indicated the increasing contamination.
引用
收藏
页码:S391 / S396
页数:6
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