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Ti2AlN-La2O3/Cu復(fù)合材料的界面反應(yīng)與性能
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國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃（2010CB71600）


Interfacial Reaction and Properties of Ti2AlN-La2O3/Cu Composite
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    摘要:

    采用粉末冶金法制備了以Ti2AlN和La2O3為增強(qiáng)相的新型銅基復(fù)合材料。研究了Ti2AlN與Cu界面反應(yīng)及其對(duì)復(fù)合材料性能的影響。結(jié)果表明：Ti2AlN顆?；瘜W(xué)鍍銅后改善了銅與Ti2AlN的界面結(jié)合情況，形成了寬度為20 nm左右的過(guò)渡區(qū)。在880~940 ℃的燒結(jié)溫度范圍內(nèi)，增強(qiáng)相與基體的界面發(fā)生化學(xué)反應(yīng)，生成了Cu(Al)固溶體與TiNx，在顯著提高復(fù)合材料強(qiáng)度的同時(shí)，降低材料的導(dǎo)電性。另外，La2O3納米顆粒分布在銅基體內(nèi)，對(duì)材料起到彌散強(qiáng)化的作用。

    Abstract:

    A novel Cu based composite was fabricated by powder metallurgy, which was reinforced by Ti2AlN and La2O3. The study was focused on the Ti2AlN-Cu interfacial reaction and its effect on the properties of Ti2AlN-La2O3/Cu composite. The results indicate that Ti2AlN particles with a copper coating is effective for interfacial bonding, and a transition zone of 20 nm width forms between Ti2AlN and Cu matrix. In the range of sintering temperature from 880 oC to 940 oC, a reaction happens between Ti2AlN and plated copper layer. New substances, Cu(Al) and TiNx form, which is beneficial to the increasing of tensile strength, but harmful to electrical conductivity. In addition, La2O3 nanoparticles disperse in the Cu matrix which also strengthens the composite.

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王 微,戰(zhàn)再吉,唐 琪,岳萬(wàn)祥,王 健,張丹丹. Ti2AlN-La2O3/Cu復(fù)合材料的界面反應(yīng)與性能[J].稀有金屬材料與工程,2015,44(5):1177~1180.[Wang Wei, Zhan Zaiji, Tang Qi, Yue Wanxiang, Wang Jian, Zhang Dandan. Interfacial Reaction and Properties of Ti2AlN-La2O3/Cu Composite[J]. Rare Metal Materials and Engineering,2015,44(5):1177~1180.]
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  • 收稿日期:2014-05-21
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  • 在線發(fā)布日期: 2015-06-08
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