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粉末冶金W/Re合金靶材的顯微結構及濺射沉積性能
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作者單位:

1.湖南科技大學 難加工材料高效精密加工湖南省重點實驗室;2.湖南科技大學 高溫耐磨材料及制備技術湖南省國防科技重點實驗室;3.中南大學 粉末冶金國家重點實驗室

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中圖分類號:

TG146.4

基金項目:

湖南省自然科學基金(2016JJ5029);湖南省軍民融合產(chǎn)業(yè)發(fā)展專項資金(B116J1);高端軸承摩擦學技術與應用國家地方聯(lián)合工程實驗室(河南科技大學)開放基金(201913);材料表界面科學與技術湖南省重點實驗室(中南林業(yè)科技大學)開放基金(KFBJM2019002)


Microstructure and magnetron sputtering properties of W/Re alloy targets fabricated by powder metallurgy
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Affiliation:

1.Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material,Hunan University of Science and Technology;2.Hunan Provincial Key Defense Laboratory of High Temperature Wear-Resisting Materials and Preparation Technology,Hunan University of Science and Technology;3.State Key Laboratory of Powder Metallurgy,Central South University

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    摘要:

    為了研制高品質(zhì)W/Re合金靶材,采用機械混料、壓制成形和真空燒結致密化的工藝路線制備了純鎢及錸含量分別為1wt.%、5wt.%、10wt.%的鎢/錸(W/Re)合金,測試了W/Re合金的致密度、晶粒度及晶粒取向、磁控濺射沉積等性能。研究表明,W/Re合金的致密度隨Re含量增加而逐漸提高,其中W/10wt.%Re合金致密度達96.6%。W/10wt.%Re合金靶材純度極高,EBSD圖中W/10wt.%Re合金晶粒細小均勻,晶粒尺寸主要介于10μm~40μm之間,W/Re合金晶粒隨機分布,并未出現(xiàn)明顯的擇優(yōu)取向,且其中小角度晶界(<10°)達85%以上,非常適用于磁控濺射鍍膜。隨著磁控濺射沉積壓力的提高,W/Re合金薄膜的晶粒尺寸逐漸細化,鍍膜表面平整程度逐漸提高,薄膜的厚度呈逐漸增加的趨勢。鍍膜在40.5°、58.6°、73.5°附近出現(xiàn)分別屬(110)、(200)和(211)晶面的衍射峰,且隨著沉積壓力升高,(110)晶面衍射峰逐漸減弱,而(200)晶面衍射峰則逐漸增強。

    Abstract:

    In order to development high quality W/Re alloy targets, pure W and W/Re alloy (with 1wt.%, 5wt.% and 10wt.% content of Re) was fabricated by mechanical mixing, press forming and vacuum sintering. Properties such as relative density, grain size and direction, magnetron sputtering of W/Re alloy were investigated. Relative density of W/Re alloy increased with content of Re addition. And relative density of W/10wt.%Re was high up to 96.6%. EPMA results showed that the purity of W/10wt.%Re alloy target was very high. And grain size of W/10wt.%Re alloy was mainly distributed between 10 μm and 40 μm. The grain size of W/Re alloy was randomly distributed without preferred orientation as shown in EBSD results. And content of small angle grain boundary (< 10 °) of W/10wt.%Re alloy was more than 85%. The grain size of W/Re alloy thin film was gradually refined as deposition pressure of magnetron sputtering increasing. Meanwhile, both surface flatness and thickness of thin film were gradually increased. XRD spectra of thin films showed that (110), (200) and (211) diffraction peaks appeared near 40.5 °, 58.6 ° and 73.5 °, respectively. As the deposition pressure increasing, the intensity of (110) diffraction peaks decreased gradually, while those of (200) diffraction peaks increased gradually.

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王躍明,唐求豪,熊翔.粉末冶金W/Re合金靶材的顯微結構及濺射沉積性能[J].稀有金屬材料與工程,2021,50(3):1044~1054.[WANG Yueming, TANG Qiuhao, XIONG Xiang. Microstructure and magnetron sputtering properties of W/Re alloy targets fabricated by powder metallurgy[J]. Rare Metal Materials and Engineering,2021,50(3):1044~1054.]
DOI:10.12442/j. issn.1002-185X.20200349

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  • 收稿日期:2020-05-21
  • 最后修改日期:2020-07-27
  • 錄用日期:2020-08-04
  • 在線發(fā)布日期: 2021-04-02
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