- 相近搜索
- 涂层材料
- 更多网络例句与涂层相关的网络例句 [注:此内容来源于网络,仅供参考]
-
With the establishmentof the equivalent medium model, RTM-DRE was applied to study radiative transfer intransparent medium with scattering particles. By taking into account of absorption andscatter of particles, absorption of binder and reflection of interface, the apparent spectrumabsorption model of thermal control coatings was developed by RTM-DRE combined withMies theory. Validity, computational error and time of the model were validated andanalyzed. Furthermore, the apparent spectrum absorption characteristics of thermal controlcoatings were studied, and the influences of optical characteristics of binder and particles,volume fraction of particles, particles diameter, characteristics of interface, and incidentangle of irradiance were analyzed.
采用RTM-DRE研究热控涂层内辐射传递,结合Mie氏散射理论,考虑粒子吸收与散射、基料吸收、界面反射等因素影响,建立热控涂层表观光谱吸收率计算模型,验证计算模型的正确性,分析计算模型的计算误差与计算时间;在此基础上,通过计算热控涂层表观光谱吸收率来研究热控涂层表观光谱吸收特性,分析基料与粒子光学特性、粒子体积份额、粒径、界面反射特性、辐射能量入射角等因素的影响,初步研究空间环境因素对热控涂层表观光谱吸收特性的影响,采用系统灵敏度理论定量分析热控涂层表观光谱吸收特性变化对卫星温度的影响。
-
We have studied the micro-structures of trumpet shells,actinia,skin and bamboos, and the bionic design principles and methids for integrated coatings, which inclde gradient coating,duplex coating,composite coating,hybrid coating,super lattice coating, were presented by this group.
研究了海螺壳、海葵、荷叶、皮肤与竹等的微结构,提出了整合涂层(包括梯度涂层、二元涂层、复合涂层、混合涂层、超晶涂层)的仿生设计原理和方法。
-
The results are listed as following :㏕he best anti-erosion proportion of resin present is 25wt% in the condition of silicon carbide reinforced SMCC, while the alumina reinforced SMCC is 40wt%.(2) The better anti-erosion results was achieved with the ratio of silicone resin to acrylic resin containing hydroxy being 3: 1.㏕he composites coating tends to be more brittle when added in alundum particles. It also means that the maximum erosion peak of alundum reinforced SMCC tends to normal angle.甌he change of erosion rate of SMCC can be divided into two stages with the increment erodent velocity: the slow erosion stage of the beginning and the stable erosion stage.
首次发现:①SiC增强的复合涂料涂层,树脂含量为25wt%时,具有最佳耐冲蚀性能:Al_2O_3增强的复合涂料涂层,树脂含量为40wt%时,具有最佳耐冲蚀性能;②SiC增强的涂料,有机硅树脂与丙烯酸树脂的比例为3:1时的耐冲蚀性能好于1:1的复合涂料涂层;③Al_2O_3增强体使涂层变脆的倾向大于以SiC为增强体的涂层,即SiC增强的复合涂料涂层的最大冲蚀率出现在30°,Al_2O_3增强的复合涂料涂层的最大冲蚀率出现在75°~90°之间;④低速冲蚀磨损机理主要是弹性变形与疲劳;高速冲蚀磨损机理主要是显微切削和显微犁耕。
-
Results indicated that the content of polyaniline had significant influence on the anticorrosive performance of the coatings.
结果表明:聚苯胺含量对涂层的防腐蚀性能有较大影响,当涂层中聚苯胺含量较低时,随着聚苯胺在涂层中质量分数的增加,涂层的防腐蚀性能相应提高;随涂层中聚苯胺质量分数的进一步增大,涂层的防腐蚀效果开始下降;涂层中聚苯胺含量为5.0%时具有最佳的防腐蚀性能。
-
When the molar fraction of SnO2 is 83%, the main component of the coating isO2 solid solution with rutile structure. When the molar fraction of SnO2 is 44%, the main components of coating are theO2 solid solution with rutile structure andO2 solid solution with fluorite structure. When the molar fraction of SnO2 is 17%, the main component of the coating isO2 solid solution with fluorite structure. Annealed at higher temperature than 450 ℃, CeO2 is found in the coating containing 83%Sn, and there is not SnO2 in the coating containing 83%Ce, which suggests that fluoriteO2 has higher thermal stability than rutileO2. When the molar fraction of SnO2 increases, the dispensability of the coatings is improved greatly.
结果表明:通过控制制备条件可获得具有纳米结构的钛阳极涂层;当Sn的摩尔分数为83%时,涂层主要为金红石相的O2固溶体;当Sn的摩尔分数为44%时,涂层中金红石相O2固溶体和萤石结构的O2固溶体共存;当Sn的摩尔分数为17%时,涂层由萤石结构的O2固溶体组成;高于450 ℃退火时,含83%Sn的涂层中出现CeO2相,而在含83%Ce的涂层中没有出现SnO2相,表明在相同的溶质浓度下,萤石结构的O2固溶体比锡基金红石相O2固溶体具有更好的热稳定性;而涂层中的SnO2具有明显改善涂层分散性的作用。
-
The properties of TCC with ATS were as good as the TCC with HTS, better that the requirement of standard GB8744-88 for semi-graphitic carbon block. As good as TCC with HTS in industrial cells, the TCC with ATS also reduces the sodium penetration to cathodic lining, no tear-off of the coating was found after starting up of the cells. As compared with reference cells, the operation of coating cells with ATS was also improved to keep good shape of cell chamber, reduce the formation of sludge on the cell bottom, and gain more uniform current distribution. The ohmic drop of TCC cell bottom was lessened by 11. 5mV. The current efficiency was increased by about 1. 48% in average. It was estimated that the TCC life could be 44 months. Obviously, the TCC with ATS could also improve the performance of industrial cells, save energy, and increase the cell life.
对常温固化涂层槽的考核表明,与高温固化涂层槽一样,阴极内衬对钠的吸收减少,钠渗透速度减缓,从而减小钠膨胀危害,减少了铝电解槽早期破损的几率;启动后,常温固化涂层不脱落,同样具有良好的粘接性能;与对比槽相比较,常温固化涂层槽正常生产后,阴极表面干净、光洁,无沉淀或结壳,炉膛规整,阴极、阳极电流分布均匀,炉底压降降低(平均降低11.5mV),电流效率提高(平均提高1.48%);涂层在电解槽内存在的时间可达到44个月以上;常温固化涂层同样可以起到改善电解槽工作状态、节能降耗、延长槽寿命的作用。
-
Functional coating: Flame-retardant coating, ultra-violet ray resistant coating,"Three-Prevention" finishing, anti-bacteria foul-proof coating, base coating, cotton cloth highly
功能性涂层:阻燃涂层,抗紫外线涂层、"三防"整理,抗菌防臭涂层,皮膜涂层,及棉布的高弹涂层、隐纹涂层等等。
-
Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80~100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100~300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).
将Ti6Al4V合金在1000℃下进行真空热处理会降低其力学性能,且合金内的V元素会向表面富集,因此,钛合金真空热处理和表面涂层的烧结温度不能过高,即应低于其相转变点;通过对生物活性梯度涂层的组成和结构的设计,分析和计算了梯度涂层内的应力大小和分布,结果表明:对于本研究,当成分分布系数n=1.5时,可以获得较合理的涂层力学性能,即在沉积开始时,采用富含BG颗粒的悬浮液,以便在钛合金侧获得同底层BG有良好过渡的富BG涂层;梯度涂层界面和表面的应力大小、性质由材料组成本身的性质决定,改变成分分布系数,只能改变涂层内应力变化的趋势;涂层的厚薄不影响涂层内的应力分布规律,但涂层越薄,涂层内的应力变化越快,但这并不意味着涂层越厚越好,因为涂层越厚,涂层允许的变形越小,对于应用于弯曲受力部位的涂层而言,涂层应薄一点为好(50μm);而对于仅纯受剪切应力的部位,如牙根种植体,涂层可适当加厚(80~100μm);通过对HA和BG颗粒在水溶液体系和非水溶液体系中的带电特性和电泳沉积的研究发现,它们在水溶液体系中很难发生电沉积;在无水乙醇溶液中,HA颗粒带正电,可在阴极钛合金片上发生均匀的电泳沉积,而BG颗粒则带负电荷;利用复分解反应法,可以制得100~300nm的HA,通过诱导HA在BG颗粒表面结晶,可对BG颗粒进行表面包覆,获得了被HA包覆的BG颗粒,改变了BG颗粒表面的带电特性,使BG和HA颗粒在无水乙醇中均带上正电荷,从而实现了HA和BG颗粒在阴极上的共沉积。
-
Through above numerical analysis of the TiN coating/substrate system, some typical rules about the fatigue failure are found:(1) the fatigue damage of a coating/substrate system appears first on the interface, then expands along the interface and to the substrate, and finally causes the coatings broken and spalled;(2) under the cyclic loadings of tangential sliding and radial extrusion, the equivalent plastic damage on the interface is mainly generated by the shear stress and the accumulated plastic contributed by the increments of shear stress. Thus the change of the shear stress is the main factor for the contact fatigue damages of coating/substrate system;(3) the frictional coefficient, external loading and coating thickness have some influence on the carrying capacity and contact fatigue life for a coating/substrate system.
通过对TiN涂层/基体系统的数值模拟分析,得到了涂层/基体系统疲劳失效的一些典型规律:(1)、涂层基体的初始损伤首先出现在交界面处,然后沿界面并向基体中扩展,最后导致涂层断裂而发生剥落失效;(2)、在切向滑动和径向挤压循环载荷作用下,交界面处的塑性损伤主要是由剪应力τ产生,塑性累积也是由于△τ的变化引起,说明循环过程中剪应力变化是影响涂层接触疲劳破坏的主要因素;(3)、材料摩擦系数、外界载荷大小以及涂层厚度都对涂层/基体系统的承载能力以及疲劳寿命都有一定影响。
-
The results showed that when PA1010 was filled with 1.5% n- SiO2, the properties of the coating was best .The coating-substrate adhesion stress was 28.9 MPa . The self-strength of the coating was 69.8 MPa. DSC analysis shown that n- SiO2 could increase the crystallization speed of PA1010 coatings obviously.
结果表明:当复合涂层配比为m(PA1010):m(n- SiO2)=100.0: 1.5时,复合涂层综合性能较佳,涂层自拉伸强度为69.8 MPa,涂层与基体结合强度为28.9 MPa;纳米SiO2有明显的异质成核作用,使复合涂层的过冷度由27.0 ℃下降为24.0 ℃;纳米SiO2能够显著提高涂层的力学性能,有助于提高复合涂层的结晶速率,具有明显的成核作用。
- 更多网络解释与涂层相关的网络解释 [注:此内容来源于网络,仅供参考]
-
antirust coating:防锈涂层
antirust coating 防腐涂层 | antirust coating 防锈涂层 | antirust composition 防锈混合
-
antirust coating:防腐涂层
antirumble 减声器 | antirust coating 防腐涂层 | antirust coating 防锈涂层
-
BREATHABLE COATING:透气涂层
涂层----COATING | 防水涂层---WATERPROOF COATING | 透气涂层---BREATHABLE COATING
-
Brittle coating:脆性涂层
Brinell hardness test|布氏硬度试验 | Brittle coating|脆性涂层 | Bulk coat|整体涂层
-
coat:涂层
(2)涂层(Coat) 经一次施涂所得到的连续的膜. (4)底涂层(Priming coat) 在底材上涂底漆所形成的徐层. (5)中间涂层(Intermediate coat) 介于底涂层与面涂层之间的涂层. (7)湿膜(Film) 液态涂料施工到被涂物件表固后形成的可流动的液态薄层.
-
overcoating:外敷层,保护涂层
overcoat 涂层 | overcoating 外敷层,保护涂层 | overcompensation 补偿过度
-
brush applied coating:电刷用涂层,刷涂层
brush application ==> 涂刷 | brush applied coating ==> 电刷用涂层,刷涂层 | brush arbor seal ==> 毛刷轴密封垫
-
Organic coatings:有机涂层
现行无铅可焊性表面处理技术概分为金属涂层(Metallic coatings)及有机涂层(Organic coatings)两大类. 金属涂层主要包含化镍金(ENIG)、化学银(ImAg)、化学锡(ImSn)等;而有机涂层则主要为有机保焊剂(OSP). 此四种无铅表面焊接技术为现阶段较为成熟者,
-
Arc-spraying Cast Iron Surface Pretreatment Grit-blasting Coatings Coating Properties:电弧喷涂 铸铁 表面预处理 喷砂 涂层 涂层性能
镀层:coatings | 电弧喷涂 铸铁 表面预处理 喷砂 涂层 涂层性能:Arc-spraying Cast Iron Surface Pretreatment Grit-blasting Coatings Coating Properties | 多层膜:Multilayer coatings
-
thermal barrier coating:热障涂层
热障涂层(Thermal Barrier Coating)是一层陶瓷涂层,它沉积在耐高温金属或超合金的表面,热障涂层对于基底材料起到隔热作用,降低基底温度,使得用其制成的器件(如发动机涡轮叶片) 能在高温下运行,并且可以提高器件(发动机等)热效率达到60%以上.