The compositions and concentrations of main conductivity salt , complexing agent , wetting agent and special additive , as well as how they affect the quality and performance of deposited layer were determined 初步明确了配方中主盐和导电盐的配比、络合剂及润湿剂种类及用量、特殊添加剂种类及用量对镀层理化性质的影响。
The complexation approach applied with the addition of acetic acid complexing agent is used to synthsize dy2o3 / zro2 ceramic power under low temperature . the best heat treatment temperature is about 600 采用乙醇酸作络合剂的化学络合法可以在较低的温度下制备出氧化锆和氧化镝的复合氧化物，最佳的热处理温度为600左右。
In this article , we mainly studied the development , 1 ~ brication method and anti - bacterial popperties of inorganic anti - bacterial agents doped with ag ~ . the preparation method , photochemical catalysis and anti - bacterial of ti02 were also discussed 以钛酸丁脂为主要原料，采用了溶胶-凝胶方法，调整了银离子的加入过程以及络合剂的使用，制备出均匀稳定的含银二氧化钛溶胶。
The formation mechanism of barexfe12 _ xol9in heat treatment was firstly deeply discussed , and the action mechanism of complexing agent ( citrate ) and dispersant ( glycol ) during the formation of the gel was also firstly studied 首次对溶胶-凝胶燃烧合成法热处理过程中稀土掺杂钡铁氧体的生成机理进行了深入研究，同时初步查明了过程中络合剂(柠檬酸)和分散剂(乙二醇)的作用机理。
The results are listed as follows : ( 1 ) the inorganic acetate of y , ba and cu were used as precursors , and diethylenetriaminejactic acid and a - methacrylic acid as complexing agents , respectively . the stable fluorine - free ybco sol can be obtained 研究结果表明： ( 1 )采用y 、 ba和cu的无机盐为出发原料，采用乳酸、 ?甲基丙烯酸及二乙烯三胺作络合剂，可以制得易于成膜且稳定性良好的无氟系ybco溶胶。
The cladding of composite powder was of higher uniformity and dispersion with the increase of the concentration of nah2p02 ? h20 ( 20 ~ 40g / l ) and cos04 ( 18 ~ 40g / l ) . when the bath loading is lower than 10g / l , the metal covered was full and composite powder was thin and disperse well 使用酒石酸钾钠作络合剂时，其浓度在120 135g / l范围内，使用柠檬酸钠作络合剂时，其浓度在40 65之间，可以得到镀覆均匀、分散性好的复合粉末。
On the base of experimental results , the compositions of bath , containing fm as a main complexing agent and 2g / l rare earth chlorides in it , as well as the technical conditions are determined . high quality coatings with low , middle and high phosphorus can be obtained by using this bath 通过对实验结果的综合分析，确定了镀液配方(其中含有fm添加剂作为主络合剂及2g l的稀土氯化物)及工艺条件，可以获得质量良好的低磷、中磷和高磷镀层。
The orthogonal experiment has been used to optimize the electrolyte composition and the craft parameters , with the increasing of the main salt and reducing agent concentration in the electrolyte , the electroless plating coating ’ s adhesive strength and the coverage ratio also increase ; increasing the complex agent content , the electroless plating coating ’ s adhesive strength and the coverage ratio exist the maximum value ; the electroless plating deposition rate distinctly increases when the electrolyte temperature and the ph value were increased , but the increasing of temperature and ph value affects the electrolyte ’ s stability 采用正交实验对镀液成分、工艺参数进行了优化,随着镀液主盐、还原剂添加量的增加,镀层结合强度及其覆盖面依次增强,随着络合剂添加量的增加,镀层结合强度及其覆盖面先增加然后减少,随着镀液温度及其ph值的升高,化学镀沉积速度明显提高,但影响镀液的稳定性。
In this study , the preparing processes of zro2 - ni nanocrystalline composite powder aremixing the nickel salt , zirconium salt and stabilizer , solvent ( distilled water ) together to prepare the mixing solution according to certain ratio ; commingling the mixing solution , coordination solution of carboxylic ammonia , intrusion aid in accordance with certain rate to form sol , drying the sol and turning it into gel , pre - sintering the gel to get the zro2 - nio powder and gaining zro2 - ni nanocrystalline composite powder by reducing the zro2 - nio powder . xrd , x - ray wide - angle diffractometer , bet , sem , tem , hrtem analyses are used to study the zro2 - ni nanocrystalline composite powder and zro2 - ni cermet . the sintering temperature is determined 本研究的zro _ 2 - ni纳米复合粉末的制备方法如下：将镍盐、锆盐、稳定剂和溶剂(水)按所需成分配成混合溶液，再将混合溶液、外加剂和氨羧络合剂按比例混合形成溶胶，溶胶经干燥成为凝胶，凝胶经预烧得到zro _ 2 - nio纳米粉，将该氧化物粉还原得到zro _ 2 - ni纳米复合粉。
On the basis of electroplating and immersion plating tin , and through large numbers of experiments , a new process of electroless plating tin in acid chloride bath solutions including sncl2 2h2o , nah2po2 h2o , special complexing agent , additive agent , stabilizing agent and antioxidant , was established . continuous self - catalyzed deposition of tin on copper substrate was achieved successfully , and half - bright and silvery - white tin deposits with excellent properties were obtained 本文是在电镀锡、浸镀锡工艺配方的基础上，通过大量的试验，确立了一种以氯化亚锡、次亚磷酸钠和特定的络合剂、添加剂、稳定剂，抗氧化剂为基本镀液组成的酸性氯化物化学镀锡体系，成功地在铜上实现了锡的连续自催化沉积，获得了性能优异的半光亮银白色锡镀层。
