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納米ITO粉末制備工藝優(yōu)化設(shè)計(jì)
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TF123.72

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國(guó)防科工委預(yù)研科學(xué)基金資助（413100202）


Optimized Design for Preparing Nanocrystalline ITO Powder
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    摘要:

    研究采用均相共沉淀法制備納米ITO（Indium Tin Oxide）粉末的制備工藝參數(shù),從堿式溶度積平衡和酸式溶度積平衡,根據(jù)熱力學(xué)平衡理論并引入化學(xué)反應(yīng)熱容參數(shù)分別計(jì)算了ITO前驅(qū)物In（OH）3和Sn（OH）4開始沉淀和沉淀完全的pH值以及其開始溶解和溶解完全的pH值,給出了這些pH值隨沉淀溫度的變化規(guī)律,由此對(duì)工藝參數(shù)進(jìn)行了優(yōu)化設(shè)計(jì)并提供了一種有效的材料摻雜新工藝.采用高分辨率透射電鏡,掃描電鏡,X射線衍射對(duì)ITO納米粉末進(jìn)行了測(cè)量.結(jié)果表明,ITO粉末的平均晶粒大小為28 nm,而且沿（400）面生長(zhǎng).

    Abstract:

    Technologic parameters of preparing nanocrystalline ITO(Indium Tin Oxide) powders by a hydroxide coprecipitation method were studied in this paper. The pH values of deposition beginning and its complete ending in the alkalescent solutions, and the pH values of dissolving beginning and its complete dissolving in the acidic solutions were computed, respectively, by using the equilibrium theory of thermodynamics. It is found that the pH values are functions of temperature. Thereout, the optimized designs of technologic parameters for manufacturing ITO powder have been made. HTEM, SEM, XRD have been used for measuring the nanosized ITO powders and found that the mean size is about 28 nm and grows along the crystal face (400).

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張維佳 王天民 吳小文 鐘立志 崔敏.納米ITO粉末制備工藝優(yōu)化設(shè)計(jì)[J].稀有金屬材料與工程,2005,34(9):1352~1356.[Zhang WeiJia;Wang TianMin;Wu XiaoWen;Zhong LiZhi;Cui Min. Optimized Design for Preparing Nanocrystalline ITO Powder[J]. Rare Metal Materials and Engineering,2005,34(9):1352~1356.]
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  • 收稿日期:2004-04-07
  • 最后修改日期:2005-07-27
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