2O3復(fù)合材料;富集萃取法;Al2O3;顆粒粒徑;顆粒間距"/> 2O3薄板復(fù)合材料,并用富集萃取法提取Cu-Al2O3復(fù)合材料中的Al2O3相。利用TEM分析了Cu-Al2O3薄板中的Al2O3相的種類、分布、與Cu基體的界面關(guān)系,用X射線衍射和TEM研究了萃取粉末的組成。結(jié)果表明,Cu-Al薄板內(nèi)氧化法所得的Cu-Al2O3復(fù)合材料的析出相主要為γ-Al2O3,有少量的α-Al2O3和θ-Al2O3相存在。析出相Al2O3顆粒彌散分布在Cu基體上,且析出相γ-Al2O3與Cu基體完全共格；Cu-Al2O3薄板復(fù)合材料從表層至深約0.5 mm處,Al2O3顆粒粒徑逐漸減小,從14 nm 減小到 5 nm,顆粒間距逐漸增大,從10 nm增加到15 nm。"/>

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Cu-Al合金薄板內(nèi)氧化析出相Al2O3晶型及分布
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河南科技大學(xué)材料科學(xué)與工程學(xué)院,河南科技大學(xué)材料科學(xué)與工程學(xué)院,河南科技大學(xué)材料科學(xué)與工程學(xué)院,河南科技大學(xué)材料科學(xué)與工程學(xué)院,河南科技大學(xué)材料科學(xué)與工程學(xué)院,河南科技大學(xué)材料科學(xué)與工程學(xué)院

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TG146.1

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河南省國際科技合作計劃項目(152102410035)；河南省科技創(chuàng)新人才計劃(144200510001)；國家自然科學(xué)(51201061)；長江學(xué)者和創(chuàng)新團隊發(fā)展計劃(IRTl234)；河南科技大學(xué)科技創(chuàng)新團隊(2015XTD006)


Al2O3 crystal type and distribution of internal oxidized Cu-Al alloy sheet
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School of Materials Science and Engineering,Henan University of Science and Technology,School of Materials Science and Engineering,Henan University of Science and Technology,School of Materials Science and Engineering,Henan University of Science and Technology,School of Materials Science and Engineering,Henan University of Science and Technology,School of Materials Science and Engineering,Henan University of Science and Technology,School of Materials Science and Engineering,Henan University of Science and Technology

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    摘要:

    Al含量為0.50 wt.%的 Cu-Al合金薄板在900 ℃下內(nèi)氧化25 h制備Cu-Al2O3薄板復(fù)合材料,并用富集萃取法提取Cu-Al2O3復(fù)合材料中的Al2O3相。利用TEM分析了Cu-Al2O3薄板中的Al2O3相的種類、分布、與Cu基體的界面關(guān)系,用X射線衍射和TEM研究了萃取粉末的組成。結(jié)果表明,Cu-Al薄板內(nèi)氧化法所得的Cu-Al2O3復(fù)合材料的析出相主要為γ-Al2O3,有少量的α-Al2O3和θ-Al2O3相存在。析出相Al2O3顆粒彌散分布在Cu基體上,且析出相γ-Al2O3與Cu基體完全共格；Cu-Al2O3薄板復(fù)合材料從表層至深約0.5 mm處,Al2O3顆粒粒徑逐漸減小,從14 nm 減小到 5 nm,顆粒間距逐漸增大,從10 nm增加到15 nm。

    Abstract:

    Cu-Al2O3 composite sheets were prepared by the internal oxidation of Cu-0.50 wt.%Al alloy sheets at 900 ℃ for 25 hours. Enrichment extraction method was used to extract Al2O3 phase in Cu-Al2O3 composites. The type, distribution, relationship with the Cu substrate interface of Al2O3 phase in the Cu-Al2O3 sheets were studied by TEM. The extracted powder was studied by X-ray diffraction (XRD) and TEM. The results show that theSprecipitated phases of Cu-Al2O3 composites by the internal oxidation of Cu-Al alloy sheets are mainly γ-Al2O3, and a few of α-Al2O3 and θ-Al2O3 were precipitated. The Al2O3 particles wereSdistributedSin theSCu matrix and completely coherent with the Cu matrix. From the surface to the deep of 0.5 mm,the size of Al2O3 particles is reduced from 14 to 5 nm and the spacing of Al2O3 particles is reduced from 10 to 15 nm.

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李新,任鳳章,田保紅,熊毅,魏世忠,馬景靈. Cu-Al合金薄板內(nèi)氧化析出相Al2O3晶型及分布[J].稀有金屬材料與工程,2017,46(5):1251~1254.[Li Xin, Ren Fengzhang, Tian Baohong, Xiong Yi, Wei Shizhong, Ma Jingling. Al2O3 crystal type and distribution of internal oxidized Cu-Al alloy sheet[J]. Rare Metal Materials and Engineering,2017,46(5):1251~1254.]
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  • 收稿日期:2016-05-23
  • 最后修改日期:2016-05-23
  • 錄用日期:2016-10-12
  • 在線發(fā)布日期: 2017-09-27
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