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采用真空热压技术制备纳米金属钨块体材料

DOI: 10.11858/gywlxb.2000.03.011, PP. 219-223

Keywords: 纳米金属钨,真空热压,显微硬度

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Abstract:

采用真空热压技术,在570℃和1GPa的条件下成功制备具有单相α-W结构、平均晶粒尺寸为34nm、尺寸为Φ10mm×1mm的难熔金属钨纳米块体材料,其密度为理论密度的88.8%,显微硬度为4.8GPa。纳米金属钨的密度和显微硬度随热压温度、热压压强和热压时间增大而升高。

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