本文關(guān)鍵詞：氧化鋁粉體表面化學(xué)鍍鎳及其在鎳—氧化鋁復(fù)合涂層制備中的應(yīng)用　出處：《大連工業(yè)大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： Ni-Al_2O_3復(fù)合涂層 化學(xué)鍍 表面活性劑 電沉積

【摘要】：陶瓷增強(qiáng)鎳基復(fù)合材料具有良好的抗氧化、耐蝕、耐高溫等性能,是航空、艦船以及工業(yè)燃?xì)鉁u輪發(fā)動(dòng)機(jī)等重要受熱部件表面首選的防護(hù)涂層材料。本實(shí)驗(yàn)采用Sn Cl2敏化和Pd Cl2活化的方法在HP4A1型氧化鋁粉體表面進(jìn)行化學(xué)鍍鎳,然后分別采用亞微米級(jí)原始氧化鋁粉體和表面鍍鎳氧化鋁粉體電沉積制備Ni-Al_2O_3復(fù)合涂層,并對(duì)涂層質(zhì)量及其影響因素進(jìn)行了研究。研究了不同粉體特征、表面活性劑種類和濃度對(duì)鍍液中顆粒穩(wěn)定性、分散度以及涂層中Al_2O_3顆粒分布和濃度、涂層性能的影響。所使用的表面活性劑包括十二烷基硫酸鈉(SDS)、曲拉通X-100(Triton X-100)和十六烷基三甲基溴化銨(CTAB)。采用粒度測(cè)試和沉降方法測(cè)定顆粒在鍍液中的穩(wěn)定性,并用掃面電鏡(SEM)分析涂層結(jié)構(gòu)。結(jié)果表明,鍍鎳后的氧化鋁粉體在使用表面活性劑的鍍液中沉降較平穩(wěn),表面活性劑對(duì)其穩(wěn)定性影響較大,而對(duì)原始氧化鋁粉體的沉降影響很小。相較來說,SDS對(duì)鍍液穩(wěn)定性影響最大,更有利于顆粒在鍍液中的穩(wěn)定性。單種表面活性劑對(duì)原始氧化鋁粉體的粒度影響很小,而兩種表面活性劑復(fù)合添加甚至?xí)a(chǎn)生“負(fù)作用”。CTAB對(duì)鍍鎳后的Al_2O_3粒度的影響較小,而Triton X-100能讓鍍鎳后的Al_2O_3的粒度變小,而SDS可以使鍍鎳后的Al_2O_3顆粒粒度明顯降低。采用鍍鎳后的氧化鋁粉體得到的Ni-Al_2O_3鍍層硬度明顯高于采用原始氧化鋁粉體獲得的鍍層硬度。
[Abstract]:Ceramic reinforced nickel matrix composites have good oxidation resistance, corrosion resistance, high temperature resistance and other properties, it is aviation. The first choice of protective coating material on the surface of important heated parts such as ship and industrial gas turbine engine. Sn Cl2 sensitization and PD were used in this experiment. Electroless nickel plating was carried out on the surface of HP4A1 alumina powder by Cl2 activation. Then the Ni-Al_2O_3 composite coatings were prepared by electrodeposition of sub-micron raw alumina powder and nickel-plated alumina powder respectively. The quality of the coating and its influencing factors were studied. The stability of particles in the bath was studied with different powder characteristics, kinds and concentrations of surfactants. Dispersion, the distribution and concentration of Al_2O_3 particles in the coating, and the influence of coating properties. The surfactants used include 12 alkyl sodium sulfate. Triton X-100) and cetyltrimethylammonium bromide (CTABX). Particle size measurement and sedimentation method were used to determine the stability of the particles in the plating solution. The structure of the coating was analyzed by scanning electron microscope (SEM). The results showed that the deposition of the Al _ 2O _ 3 powder after nickel plating was stable in the bath with surfactant, and the surfactant had a great influence on the stability of the coating. However, the effect of SDS on the deposition of the original alumina powder is very small, and SDS has the greatest influence on the stability of the plating solution. The single surfactant has little effect on the particle size of the original alumina powder. However, the compound addition of two surfactants can even produce "negative effect". CTAB has little effect on the size of Al_2O_3 after nickel plating. And Triton X-100 can make the size of Al_2O_3 after nickel plating become smaller. However, SDS can obviously reduce the particle size of Al_2O_3 after nickel plating, and the hardness of Ni-Al_2O_3 coating obtained by nickel plating alumina powder is obviously higher than that obtained by using the original alumina powder. Hardness of the coating.
【學(xué)位授予單位】：大連工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TG174.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 易濱;余愿;鄭歡歡;羅來馬;游碧龍;陳焱;劉少光;;陶瓷粉體化學(xué)鍍前活化處理的研究現(xiàn)狀[J];熱處理;2013年02期

2 周海飛;祝酈偉;錢洲亥;;復(fù)合電沉積中共沉積過程的研究概況[J];電鍍與涂飾;2013年03期

3 邱星武;;激光熔覆技術(shù)[J];熱處理技術(shù)與裝備;2010年02期

4 王錦;;鎳包覆氧化鋁復(fù)合粉末的制備[J];中國(guó)粉體技術(shù);2009年06期

5 邱星武;李剛;邱玲;;激光熔覆技術(shù)發(fā)展現(xiàn)狀及展望[J];稀有金屬與硬質(zhì)合金;2008年03期

6 范云鷹;張英杰;董鵬;羅少林;;復(fù)合電沉積的影響因素[J];電鍍與涂飾;2007年10期

7 王錦;王慶偉;;氧化鋁-鎳復(fù)合粉末的制備[J];真空電子技術(shù);2007年04期

8 宮文彪;趙賀;孫大千;;氧化鋁增強(qiáng)鎳基合金涂層的組織與耐沖蝕磨損性能研究[J];材料熱處理學(xué)報(bào);2006年01期

9 周海飛,杜楠,趙晴;復(fù)合電沉積工藝研究現(xiàn)狀[J];電鍍與涂飾;2005年06期

10 鐘誠(chéng);復(fù)合電鍍的研究新進(jìn)展[J];四川化工;2004年01期

，

本文編號(hào)：1430034