The ball to powder ratio (BPR) dependent morphology and microstructure of tungsten powder refined by ball milling

被引：33
作者：
Wu, Z. M. [1 ]
Liang, Y. X. [1 ]
Fan, Y. [1 ]
Wang, P. P. [1 ]
Du, J. L. [1 ]
Zhao, Y. B. [1 ]
Fu, E. G. [1 ]
机构：
[1] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
来源：
POWDER TECHNOLOGY | 2018年 / 339卷
关键词：
Morphology; Microstructure; Nanocrystalline tungsten; Refinement; Ball to powder ratio; Ball milling; PLASMA-FACING MATERIALS; MECHANICAL ATTRITION TREATMENT; IN-SITU SYNTHESIS; NIAL-AL2O3; COMPOSITE; PLASTIC-DEFORMATION; EVOLUTION; SIZE; NANOPARTICLES; BEHAVIOR; MODEL;
D O I：
10.1016/j.powtec.2018.07.094
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The nanocrystalline tungsten powder with the minimum grain size of around 5 nm was fabricated by mechanical alloying. The powder refinement process and the influence of ball to powder ratio (BPR) on the morphology and microstructure of tungsten powder were investigated. The morphology and microstructure were characterized by X-ray diffraction (XRD), field-emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM). Results revealed that the high energy ball milling process has four stages. Compared with the samples with the BPR of 10:1 and 4:1 under the same ball milling conditions, the samples with the BPR of 15:1 experience the whole four stages after 60 h ball milling. One key factor in determining the final morphology and microstructure of tungsten powder by ball milling was revealed. The model to illustrate the fundamental mechanism for refining the particle size was discussed. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：256 / 263
页数：8
相关论文
共 39 条
[1]   Superplasticity and high temperature deformation behaviour in nano grain tungsten compacts [J].
Ameyama, K. ;
Oda, E. ;
Fujiwara, H. .
MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, 2008, 39 (4-5) :336-339
[2]   Elucidating microstructural evolution and strengthening mechanisms in nanocrystalline surface induced by surface mechanical attrition treatment of stainless steel [J].
Bahl, Sumit ;
Suwas, Satyam ;
Ungar, Tamas ;
Chatterjee, Kaushik .
ACTA MATERIALIA, 2017, 122 :138-151
[3]   In-situ synthesis and characterization of nano-structured NiAl-Al2O3 composite during high energy ball milling [J].
Beyhaghi, Maryam ;
Khaki, Jalil Vandati ;
Manawan, Maykel ;
Kiani-Rashid, Alireza ;
Kashefi, Mehrdad ;
Jonsson, Stefan .
POWDER TECHNOLOGY, 2018, 329 :95-106
[4]   In-situ synthesis of nanostructured NiAl-Al2O3 composite coatings on cast iron substrates by spark plasma sintering of mechanically activated powders [J].
Beyhaghi, Maryam ;
Kashefi, Mehrdad ;
Kiani-Rashid, Alireza ;
Khaki, Jalil Vandati ;
Jonsson, Stefan .
SURFACE & COATINGS TECHNOLOGY, 2015, 272 :254-267
[5]   Effect of powder reactivity on fabrication and properties of NiAl/Al2O3 composite coated on cast iron using spark plasma sintering [J].
Beyhaghi, Maryam ;
Kiani-Rashid, Ali-Reza ;
Kashefi, Mehrdad ;
Khaki, Jalil Vandati ;
Jonsson, Stefan .
APPLIED SURFACE SCIENCE, 2015, 344 :1-8
[6]   Influence of ball milling processing on the microstructure and characteristic,of W-Nb alloy [J].
Chen, Jing-Bo ;
Luo, Lai-Ma ;
Lin, Jin-Shan ;
Zan, Xiang ;
Zhu, Xiao-Yong ;
Luo, Guang-Nan ;
Wu, Yu-Cheng .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 694 :905-913
[7]   Experimental and theoretical analysis of microstructural evolution and deformation behaviors of CuW composites during equal channel angular pressing [J].
Chen, Wenge ;
Feng, Pei ;
Dong, Longlong ;
Liu, Bing ;
Ren, Shuxin ;
Fu, Yongqing .
MATERIALS & DESIGN, 2018, 142 :166-176
[8]   Materials perspective - A survey of plasma facing materials for fusion power plants [J].
Cottrell, G. A. .
MATERIALS SCIENCE AND TECHNOLOGY, 2006, 22 (08) :869-880
[9]   Assessment of tungsten for use in the ITER plasma facing components [J].
Davis, JW ;
Barabash, VR ;
Makhankov, A ;
Plochl, L ;
Slattery, KT .
JOURNAL OF NUCLEAR MATERIALS, 1998, 258 :308-312
[10]   Effect of temperature rise on microstructural evolution during high-pressure torsion [J].
Edalati, Kaveh ;
Hashiguchi, Yuki ;
Pereira, Pedro Henrique R. ;
Horita, Zenji ;
Langdon, Terence G. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 714 :167-171
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