Analyzing the sintering theory of nano material and the heat conduction theory of laser machining , the mathematic model of grain size growth of nano material in laser sintering is built 在分析纳米材料已有烧结理论的基础上，结合激光加工中有关热传导理论，建立了纳米材料在激光作用下晶粒尺寸变化的数学模型。
The research deals with functional nano powder , fabrication of heterozygous material , 1 - d nano material and devices . the research has promoted the application and industrialization of nano technology in liaoning province 本方向主要开展功能性纳米粉体、纳米杂化材料制备技术及一维纳米材料与器件的研究。通过纳米材料和制造的研究，推动了省内纳米技术的应用与产业化。
On the basis of reference 1 , this paper introduces the application of nano powder in adiabatic materials , including adiabatic nano materials , adiabatic nano inorganic / organic materials , adiabatic nano membrane materials 在文献[ 1 ]的基础上，进一步介绍了纳米粉体在隔热保温材料中的应用，包括隔热保温纳米材料，隔热保温纳米无机/有机复合材料，隔热保温纳米复合膜材料。
On the basis of reference 1 , this paper introduces the application of nano powder in adiabatic materials , including adiabatic nano materials , adiabatic nano inorganic / organic materials , adiabatic nano membrane materials 摘要在文献[ 1 ]的基础上，进一步介绍了纳米粉体在隔热保温材料中的应用，包括隔热保温纳米材料，隔热保温纳米无机/有机复合材料，隔热保温纳米复合膜材料。
Then , according to the calculation , a simplified mathematic model of nano material grain size growth in laser sintering is put forward which could be used in the optimization of sintering parameters , the forecasting of grain size and its control . 2 对不同加工参数变化下的晶粒直径尺寸进行了数值计算，提出了晶粒长大简化数学模型，对生产或实验中参数的优化或选择，晶粒大小的预测与控制具有实际意义。
It is indicated after laser remelting , the density of the nano material infiltrated coating is improved and grain size is decreased greatly . in above researches , it is found that the nano material is distributed among general material grains to form inter - granular structure of the coating 研究发现，在各种涂层中纳米颗粒明显填充在粗颗粒间，构成晶间型组织结构；初步测试还表明，在al _ 2o _ 3 + 13 wt
In this thesis , the author studies the mechanical properties of carbon nanotubes in the micro / nano electrical and mechanical system ( m / nems ) by molecular dynamics simulation . firstly , recent studies on carbon nanotubes and simulation methods of nano materials are introduced 首先，简述了碳纳米管的研究现状和应用于纳米材料的各种数值模拟方法，同时介绍了碳纳米管的结构和特性以及碳纳米管在微纳米机电系统中的应用前景。
Now , we have various series ultrasonic products , respectively ultrasonic cell disruptor , ultrasonic cleaning machine , ultrasonic plastic welding machine , ultrasonic nano materials manufacturing machine , ultrasonic extractor , ultrasonic auto drilling machine , ultrasonic reaction vessel 公司拥有各大超声系列产品，分别有超声波细胞粉碎机超声波清洗机超声波塑料焊接机超声波纳米材料制备机超声波提取机超声波自动打孔机超声波反应釜等。
It is found that the nano material is distributed not only among general material grains to form inter - granular structure of the coating but also in the general material grains to form intra - granular structure . micro - crack caused by laser will be eliminated greatly . 3 mechanical performances of the ceramic coating manufactured are tested 得到的结论是经过激光熔覆后的涂层致密化程度有了很大的提高，比单纯的激光重熔涂层还高，纳米颗粒不仅填充在晶粒之间，而且还嵌入在大晶粒内部，有利于消除激光作用产生的微裂纹。
Shanghai yaohua nano - tech - - nano calcium carbonate is a high - tech new - material enterprise based upon the field of nano materials . currently the company s main product is nano calcium carbonate , which is widely used in auto - make , new - type construction materials , paper making , food , pharmaceuticals , printing ink , paint , etc . and claims broad market occupancy both home and abroad 目前，公司主要产品为纳米碳酸钙。该产品主要应用于汽车、新型建材、造纸、食品、药品、油墨、涂料等行业，产品具有广泛的国内国际市场。
