The influence of annealing temperature on the microstructural development of W-Cu composite powder prepared by high-energy ball milling

Sung Soo Ryu; Gil Su Kim; Jin Chun Kim; Sung Tag Oh; Young Do Kim

doi:10.1016/j.jallcom.2005.10.082

The influence of annealing temperature on the microstructural development of W-Cu composite powder prepared by high-energy ball milling

Sung Soo Ryu, Gil Su Kim, Jin Chun Kim, Sung Tag Oh, Young Do Kim

Dept. of Materials Science & Engineering

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

The microstructural characteristics of nanocrystalline W-Cu powder mixture were investigated as functions of annealing temperature. Open pores were observed after an annealing treatment at 300 °C, indicating that the pores that had entrapped as-milled powder opened. As the annealing temperature increased, the mean pore size increased and the pore size distribution broadened. The powder mixtures annealed above 500 °C showed significant differences in pore size distribution, powder density, and specific surface area. The changes in the powder characteristics were explained by Cu segregation and W grain growth due to the liquid-like behavior of Cu.

Original language	English
Pages (from-to)	209-212
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	424
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2005.10.082
State	Published - 9 Nov 2006

Keywords

Annealing temperature
Microstructure
Nanocrystalline W-Cu powders

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10.1016/j.jallcom.2005.10.082

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title = "The influence of annealing temperature on the microstructural development of W-Cu composite powder prepared by high-energy ball milling",

abstract = "The microstructural characteristics of nanocrystalline W-Cu powder mixture were investigated as functions of annealing temperature. Open pores were observed after an annealing treatment at 300 °C, indicating that the pores that had entrapped as-milled powder opened. As the annealing temperature increased, the mean pore size increased and the pore size distribution broadened. The powder mixtures annealed above 500 °C showed significant differences in pore size distribution, powder density, and specific surface area. The changes in the powder characteristics were explained by Cu segregation and W grain growth due to the liquid-like behavior of Cu.",

keywords = "Annealing temperature, Microstructure, Nanocrystalline W-Cu powders",

author = "Ryu, \{Sung Soo\} and Kim, \{Gil Su\} and Kim, \{Jin Chun\} and Oh, \{Sung Tag\} and Kim, \{Young Do\}",

year = "2006",

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doi = "10.1016/j.jallcom.2005.10.082",

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T1 - The influence of annealing temperature on the microstructural development of W-Cu composite powder prepared by high-energy ball milling

AU - Ryu, Sung Soo

AU - Kim, Gil Su

AU - Kim, Jin Chun

AU - Oh, Sung Tag

AU - Kim, Young Do

PY - 2006/11/9

Y1 - 2006/11/9

N2 - The microstructural characteristics of nanocrystalline W-Cu powder mixture were investigated as functions of annealing temperature. Open pores were observed after an annealing treatment at 300 °C, indicating that the pores that had entrapped as-milled powder opened. As the annealing temperature increased, the mean pore size increased and the pore size distribution broadened. The powder mixtures annealed above 500 °C showed significant differences in pore size distribution, powder density, and specific surface area. The changes in the powder characteristics were explained by Cu segregation and W grain growth due to the liquid-like behavior of Cu.

AB - The microstructural characteristics of nanocrystalline W-Cu powder mixture were investigated as functions of annealing temperature. Open pores were observed after an annealing treatment at 300 °C, indicating that the pores that had entrapped as-milled powder opened. As the annealing temperature increased, the mean pore size increased and the pore size distribution broadened. The powder mixtures annealed above 500 °C showed significant differences in pore size distribution, powder density, and specific surface area. The changes in the powder characteristics were explained by Cu segregation and W grain growth due to the liquid-like behavior of Cu.

KW - Annealing temperature

KW - Microstructure

KW - Nanocrystalline W-Cu powders

UR - https://www.scopus.com/pages/publications/33748979518

U2 - 10.1016/j.jallcom.2005.10.082

DO - 10.1016/j.jallcom.2005.10.082

M3 - Article

AN - SCOPUS:33748979518

SN - 0925-8388

VL - 424

SP - 209

EP - 212

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

The influence of annealing temperature on the microstructural development of W-Cu composite powder prepared by high-energy ball milling

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Keywords

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