With the hardness tests , it is indicated the hardness of the nano alumina or nano silicon carbide coating is improved to 1 . 6 - 2 . 5 times as that of the plasma spraying coating . with the wearing tests , it is indicated that low laser power employed , the wearing performance of the coating without nano material increase to 1 . 3 times as that of the plasma coating , at the same time , the wearing performance of the coating with nano material increase 2 . 3 - 6 times as that of the plasma spraying coating , the wearing mechanism is further analyzed . with the erosion tests , it is indicated that the erosion performance of the coating with nano material increase five times as that of the plasma spra 与相应等离子喷涂层相比，硬度测试表明，含纳米al _ 2o _ 3或sic的各种复合涂层硬度提高了0 . 6 - 1 . 5倍左右；耐磨性测试表明，小功率下单纯的激光重熔耐磨性提高了30 ，而纳米渗入后涂层的耐磨性提高了1 . 3 - 5倍左右，对耐磨性提高的机理作了进一步的探索和分析研究；耐蚀性测试表明，经激光熔覆纳米渗入后的各种涂层耐蚀性能提高了4倍以上，同时涂层厚度、表面质量对腐蚀性能有影响。
Sichuan has completed the industrialization for a series of high - performance new materials and modified materials such as pps , high - end rare earth permanent magnet , lanthanum glass , high purity tellurium , fluoro rubber , organic silicon , high performance processing for general - purpose plastic , nano materials and wisker materials 已完成聚苯硫醚、高档稀土永磁材料、稀土镧系玻璃、高纯碲、氟橡胶、有机硅、通用型塑料高性能化、纳米材料、晶须材料等一批高性能新材料和改性材料的产业化。
Summarizing the development of plasma spray , laser remelting and nano technology , a new nano modification coating technology based on plasma spray , laser remelting is put forward ; introducing rapid prototyping into nano material processing , experimental researches on the selective sintering of nano material are carried out systematically , the main work accomplished and conclusions gotten in this dissertation are presented as follows : 1 本文总结了等离子喷涂、激光重熔、纳米材料等技术的研究与发展，提出了在等离子喷涂基础上，利用激光重熔制备纳米改性涂层的新思路；将快速成型应用于纳米材料加工，进行了纳米材料的激光烧结快速成型技术的基础试验研究，所完成的工作主要有： 1
Moreover , the quenching concentration of eu is raised . on the basement of successful synthesis of two - components oxide , edta complexing sol - gel method was expanded and applied to effectively synthesis nanosized muti - components oxide , such as la1 - xsrx fe o3 , lafe1 - xcuxo3 , la1 - xsrx coo3 , laco1 - xcuxo3 because edta can bind with most metallic elements of the periodic table , this technique become a versatile tool in the production and study of new nano materials of multi - component complex oxides . a economic and new process has been studied to synthesis la2o3 nanocrystalline , using nh4hco3 as precipitant 河北大学理学博士学位论文对于单一组份的稀土氧化物，探索出一条更经济、更方便的合成方法，即:用碳酸氢钱做稀土沉淀剂，成功地制备了纳米l匆03 ，并对中间产物碳酸斓及其烧成的氧化斓分别进行了ir 、 tg一dta 、 sem 、 xrd分析研究，确定了碳酸悯的组成，氧化斓的物相、结构，并发现分散剂的种类对微观形貌有一定的影响。
2 nano ceramic material is infiltrated into plasma - spraying coatings by laser - cladding nano - material . the microstructures of the coating series gotten are studied in detail with x ray diffraction , scanning electron microscopy . it is concluded that after laser cladding the density of the nano material infiltrated coating is improved and superior to density of laser - remelting coating ( 2 )在等离子涂层的基础上，利用激光熔覆将纳米陶瓷材料熔渗到等离子涂层中，然后采用x射线衍射、扫描电镜、能谱仪等，对陶瓷系列涂层的微观组织与结构进行了详细分析。
The thermodynamic and mechanical properties are calculated , it shows the melting point reduce in nizr alloy nano material . further we study the microstructure of them by the reverse monte carlo simulation , obtain the a series of information about bond angle - coordinate and so on Dft结合实验数据导出的嵌入原子势用于纳米nizr合金热力学性质的分子动力学模拟，模拟结果证实了纳米合金材料由于界面结构原子分布比较混乱，与常规合金相比体系嫡较大，熔点降低，得到与实验一致的结果。
With the wearing tests , it is indicated that low laser power employed , the wearing performance of the coating without nano material increase to 1 . 3 times as that of the plasma coating , at the same time , the wearing performance of the coating with nano material increase 2 . 3 - 6 times as that of the plasma spraying coating , the wearing mechanism is further analyzed . with the erosion tests , it is indicated that the erosion performance of the coating with nano material increase five times as that of the plasma spraying coating . at the same time , the erosion performance is affected by ceramic coating thickness and surface quality 与相应等离子喷涂层相比，硬度测试表明，含纳米al _ 2o _ 3或sic的各种复合涂层硬度提高了0 . 6 - 1 . 5倍左右；耐磨性测试表明，小功率下单纯的激光重熔耐磨性提高了30 ，而纳米渗入后涂层的耐磨性提高了1 . 3 - 5倍左右；耐蚀性测试表明，经激光熔覆纳米渗入后的各种涂层耐蚀性能提高了4倍以上，同时涂层厚度、表面质量对腐蚀性能有影响。
The content of this dissertation is about the modification of coatings by laser cladding nano - material on plasma - spraying coatings . introducing rapid prototyping into nano material processing , experimental researches on the selective sintering of nano material are carried out systematically , the main work accomplished and conclusions gotten in this dissertation are presented as follows : 1 under the aiding of plasma spraying , reasonable coating material systems are designed to fabricate alumina , nicral / a12o3 , nicral / a12o3 + 13 % wt . tio2 , nicral / wc - co coating 本文主要是在等离子喷涂的基础上，利用激光熔覆纳米陶瓷材料对等离子涂层进行改性处理，从而制备纳米复合涂层；同时将激光快速成型应用于纳米材料加工中，主要完成如下内容： ( 1 )设计合理的等离子涂层结构，制备了al _ 2o _ 3 ， nicral al _ 2o _ 3 ， nicral al _ 2o _ 3 13 wttio _ 2 ， nicral wc - co四种涂层。
The great nano technology ( suzhou ) co , ltd had been founded in 2005 years , is a fair research and development , produces and sells each kind of nano material the specialized production factory , supports with researches and develops the personnel to devote to study the nanometer material in life application , the advanced bench - scale equipment , the outstanding administrative personnel , and supports with the independent new processing production equipment and the experiment test facility , completes the quality for the customer to check 钜网奈米科技（苏州）有限公司成立于2005年，是一家集研发，生产并销售各种奈米材料的专业生产厂家，拥用研发人员致力研究纳米材料在生活中的应用，先进实验室设备，优秀的管理人员，并拥用独立新型加工生产设备与实验测试设备，为客户做好质量把关！
This paper introduces the application of nano powder in thermal conductive materials , including micro - scale thermal science and nano enhancing thermal conductive mechanism , thermal conductive nano material , nano inorganic / organic composite thermal conductive materials and thermal conductive materials for micro / nano device 摘要介绍了纳米粉体在导热材料中的应用，包括微尺度热科学及纳米强化传热机制，导热纳米粉体材料，纳米无机有机复合导热材料，微纳米器件用导热材料等。
