Assessment of Superheater Tube s Residual Life by Pipes Inside Oxide Layer Thickness;
由内壁氧化层厚度测评过热器管道的剩余寿命
Oxidation behaviors of zirconium hydride in pure oxygen at 350～600 ℃ were investigated by isothermal oxidation and the influences of temperature and oxidation time on mass increment of the oxide layer were studied.
通过恒温氧化实验研究了氢化锆在350~600℃纯氧中的氧化行为,分析了温度和时间对氧化层质量增重的影响规律,并借助XRD,SEM等分析测试手段对氧化层的物相组成和截面形貌进行分析。
The influences of temperature on oxide layer were investigated.
采用原位氧化法在氢化锆表面制备了氢渗透阻挡层,分析了工艺参数对氧化层生长的影响,借助XRD,XPS,SEM等分析测试手段对氧化层的物相组成和截面形貌进行分析,并对氧化层的阻氢效果进行检测。
1at% Y enhances the oxidation resistance of the alloy greatly and promotes the formation of continuous and compact Al2O3 oxide scale.
1%(原子分数,下同)的Y使合金的抗氧化性有所提高,促进合金形成了以Al2O3为主的连续致密氧化层;在高铌含Y合金中添加W,B2种合金元素则导致基体发生了严重的内氧化,使合金的抗氧化性能降低。
The phase composition and microstructure of the oxide scale are analyzed and observed by XRD and SEM.
检测了该合金在上述氧化条件下循环氧化总计1 080 ks(300 h,15次循环)的氧化增重情况,并对其氧化层的组成和结构用X射线衍射仪(XRD)和扫描电子显微镜(SEM)进行了分析和观测。
The change of substrate of the oxidized alloy and the oxide scale was examined by means of SEM,X-ray diffraction and etc.
Fe) 2 O3 的复杂结构 ,高温下氧元素扩散导致氧化层为岛状结构 ,在一定氧化时间 ,氧化层深度与温度是对数函数关系 ,氧化反应激活能为 14 3 5 2kJ/mol。
The results indicate that below 100 ℃ in the initial period,the relationship between oxidation layer thickness and time is parabolic.
采用椭偏技术研究了45~95℃和5 kPa纯氧气氛中金属铀的氧化,通过不同温度下金属铀表面氧化层厚度随时间的变化规律,得到贫铀在初始氧化阶段的表面氧化层厚度与时间的关系均呈现抛物线规律;绘制出了在不同温度下金属铀表面的氧化动力学曲线,由此得到在低于100℃,5 kPa的纯氧气氛下贫铀表面形成氧化物的反应活化能为87。
The experimental result show that mechanical strength of MnZn ferrite can be increased to a much higher extent in the following way: adding suitable additives, fining particle size, forming a oxidation layer on the surface of core at temperature 1200-1050℃, avoiding the formation of crazing on the core surface.
提出了提高锰锌软磁铁氧体磁芯抗折强度的措施和工艺方法,即通过加入合适的添加剂,细化晶粒,抑制晶粒异常长大;1200~1050℃快速在磁芯表面形成氧化层;工艺方法抑制或物理去除磁芯表面“龟纹”等。
A physical model of dielectric breakdown was presented in IC silicon dioxide films.
提出了芯片门电路硅氧化层静电放电介质击穿的物理模型。
This paper presents a physical model of ESD dielectric breakdown in IC silicon dioxide films, discusses the dependence between dielectric breakdown field strength and dielectric thickness by using this model, and analyzes the size effect of the dielectric breakdown voltage and ESD pulses.
提出了电子器件门电路硅氧化层介质击穿的物理模型。
A physical model of dielectric breakdown was presented in IC silicon dioxide films.
提出了芯片门电路硅氧化层静电放电介质击穿的物理模型。
Preparation of alumina coating on stainless steel surface by cathodic plasma liquid deposition;
不锈钢表面阴极等离子体液相沉积氧化铝层
charge in the oxide layer and surface state
氧化层电荷与界面态
gate oxide integrity
栅极氧化层的完整性
Applications of the Wavelet Transform to Characterize the Oxide Layer,Interlayer and Thickness Fluctuation in Multilayer Structures
小波变换表征多层膜氧化层、界面层和膜厚漂移
Studies of Microstructure and Properties of Oxidized Layer Formed on Aluminium Alloy by Plasma Oxidation;
铝合金的等离子体氧化及其氧化层性能的研究
polysilicon on oxide region
氧化物层上多晶硅区
The barrier-layer alumina films and porous-layer alumina make up of nanometer alumina membrane.
其中阻挡层氧化铝和多孔层氧化铝构成纳米氧化铝模板。
There is a protective coating of silicon dioxide on the silicon carbide.
在棒的表面有一层二氧化硅保护涂层。
DEOXYGENATION CHARACTERISTIC OF SULFIDE OXIDATION IN THE PROCESS OF OXYGEN-BEARING COAL MINE METHANE
含氧煤层气脱氧过程中硫化物的脱氧特性
Synthesis and Catalytic Oxidation Preporties of Titania Pillared Zirconium Phosphonate
氧化钛层柱磷酸锆的合成及催化氧化性能
Study on Properties of ZrO_2-Al_2O_3 Laminated Ceramics;
氧化锆—氧化铝层状复合陶瓷的性能研究
Study on Metal/Oxide、Semiconductor/Oxide Multilayers;
金属/氧化物、半导体/氧化物多层膜的研究
Metal/Oxide、Semiconductor/Oxide and Photovoltaic System;
金属/氧化物与半导体/氧化物多层膜及光伏系统
Microstructural Characterization and Oxidation Performance of a Novel Rare Earth Elements-Modified Chromizing Coating;
稀土氧化物改性的渗铬涂层及氧化性能的研究
Preparation and Application of Oxide Anodes with Iridium-Titanium Oxide Interlayer
含铱钛氧化物中间层的氧化物阳极制备及应用
Effect of Nanometer ZrO_2 Addition on High-temperature Oxidation Resistance of ZnO_2 Ceramics
纳米氧化锆基陶瓷涂层抗高温氧化性能的研究
Properties of APS alumina coating with different alumina particle distributions as feedstock
不同氧化铝粉末等离子喷涂氧化铝涂层的性能
Study on coatings formed on the pre-oxidized NiTi wires by micro-arc oxidation
表面预氧化镍钛丝微弧氧化涂层的研究
Effects of Hydrogen Peroxide on Performance of Anodic Films on AZ 31 Magnesium Alloy
过氧化氢对AZ31镁合金阳极氧化膜层性能的影响