Laves相NbCr2合金,Laves phase NbCr2 alloy
1)Laves phase NbCr2 alloyLaves相NbCr2合金
1.Laves phase NbCr2 alloys were prepared by mechanical alloying and hot pressing sintering technology.采用机械合金化+热压烧结工艺制备Laves相NbCr2合金,研究球磨时间对热压合金晶粒尺寸及致密度的影响,探讨了晶粒细化对其1100℃氧化行为影响的作用机制。
2)Laves phase NbCr2Laves相NbCr2
1.Laves phase NbCr2 alloys with a stoichiometric composition were prepared by mechanical alloying followed by hot pressing.采用机械合金化+热压工艺路线来制备化学配比成分的单相Laves相NbCr2合金。
2.The application of Laves phase NbCr2 at high temperaturs (over 1200℃) as high temperature structural materials in aeronautical and astronautical field is hindered by its poor high temperature oxidation resistance.Laves相NbCr2的高温抗氧化性能限制了其作为高温结构材料在1200℃以上的应用进程。
3.Laves phase NbCr2 reinforced Nb matrix composites were prepared by mechanical alloying followed by hot pressing.采用机械合金化+热压工艺制备了Laves相NbCr2增强的Nb基复合材料。
3)Laves phase alloyLaves相合金
1.For examining the effect of the additive elements on the AB2-type Laves phase alloys {Zr{0.比较系统地研究了 AB2 型 Laves相合金 Zr0 。
2.However, Zr-based Laves phase alloy electrodes exhibit in general very slow activation behavior, poor high-rate dischargeability and low-temperature electrochemical characteristics.锆基AB2型Laves相合金被认为是继目前商品化的AB5型稀土基贮氢合金后的第二代MH/Ni电池新型负极材料。
英文短句/例句

1.An Investigation on the Hydrogen-Storage Properties and Mechanism of Li-Based Metal Complex and Zr-Mn-Based Laves Phase Alloys;Zr-Mn基Laves相合金及Li系金属络合物的贮氢性能与机理研究
2.The Research of TiFe_2 Laves Phase Intermetallics;TiFe_2 laves相金属间化合物的研究
3.Study on Hydrogen Storage and Electrochemical Performances of C14 Laves Phase and BCC Phase Alloys;C14 Laves相与BCC相合金的储氢及电化学行为的研究
4.Phase Structures and Hydrogen Storage Properties of Ti-Zr-Cr-Mn Based Laves Phase Multiple Alloys;Ti-Zr-Mn-Cr基Laves相多元合金的相结构和储氢性能
5.Study on Electronic Structures of AB_2-type Laves Phase Zr-Mn Based Hydrogen Storage Alloys;AB_2型Laves相Zr-Mn基贮氢合金的电子结构研究
6.Defect structure in NbCr_2 Laves-phase intermetallics and its toughening effectLaves相NbCr_2金属间化合物的缺陷结构及其韧化效应
7.Effect of Rare Earth Element Yttrium on Oxidation Behavior of Laves Phase NbCr_2 Alloy at 1100℃稀土元素钇对Laves相NbCr_2合金在1100℃氧化行为的影响
8.Effects of Multi-component on the Phase Structure and Electrochemical Properties of Zr-based Laves Hydrogen Storage Alloy;多元合金化对Zr基Laves相贮氢合金相结构和电化学性能的影响
9.Effect of Mechanical Alloying on Oxidation Behavior at 1100 ℃ of Laves Phase NbCr_2 Alloys by Hot Pressing Synthesis机械合金化对热压合成Laves相NbCr_2合金1100℃氧化行为的影响
10.Study on the Properties of La-Mg Based Hydrogen Storage Compounds and the Laves Phase Structures of Binary Alloys;La-Mg基贮氢合金性能及二元合金Laves相结构的研究
11.Study on Absorb-Hydrogen Mechanism and Functions of Substitute Element in AB_2 Type Laves Phase Hydrogen Storage Alloys;AB_2型Laves相储氢合金吸氢机理及掺杂元素作用机制的研究
12.The Research on Electrochemical Performance of Zr-Cr-Ni AB_2 Laves Phase Hydrogen Storage Alloys;Zr-Cr-Ni系AB_2型Laves相贮氢电极合金的电化学特性研究
13.Study on Intrinsic Magnetostriction and Structure Properties of Rare Earth Intermetallic Laves Phase Compouds Containing Pr;含镨Laves相稀土金属间化合物的内禀磁致伸缩及结构性能的研究
14.Electronic Structure and Mechanical Properties of Mg-Al-Ca Laves Phase and Mg-Al-Sb AlloysMg-Al-Ca Laves相和Mg-Al-Sb合金的电子结构和力学性能
15.Effect of hot pressing parameters on microstructure and high temperature oxidation behavior of Laves phase NbCr_2 alloys热压烧结对Laves相NbCr_2合金组织及高温氧化行为的影响
16.Effects of Al on the Microstructure and Fracture Toughness of NbCr_2 Alloys合金元素Al对Laves相NbCr_2显微组织及断裂韧性的影响
17.Studies on Structure and Magnetostriction of Light Rare Earth Compounds with Laves Phase;含轻稀土的Laves相化合物的结构和磁致伸缩研究
18.INFLUENCE OF LAVESPHASE AND Z-PHASE UPON CREEP OF P92 STEELLaves相和Z相对P92钢蠕变的影响
相关短句/例句

Laves phase NbCr2Laves相NbCr2
1.Laves phase NbCr2 alloys with a stoichiometric composition were prepared by mechanical alloying followed by hot pressing.采用机械合金化+热压工艺路线来制备化学配比成分的单相Laves相NbCr2合金。
2.The application of Laves phase NbCr2 at high temperaturs (over 1200℃) as high temperature structural materials in aeronautical and astronautical field is hindered by its poor high temperature oxidation resistance.Laves相NbCr2的高温抗氧化性能限制了其作为高温结构材料在1200℃以上的应用进程。
3.Laves phase NbCr2 reinforced Nb matrix composites were prepared by mechanical alloying followed by hot pressing.采用机械合金化+热压工艺制备了Laves相NbCr2增强的Nb基复合材料。
3)Laves phase alloyLaves相合金
1.For examining the effect of the additive elements on the AB2-type Laves phase alloys {Zr{0.比较系统地研究了 AB2 型 Laves相合金 Zr0 。
2.However, Zr-based Laves phase alloy electrodes exhibit in general very slow activation behavior, poor high-rate dischargeability and low-temperature electrochemical characteristics.锆基AB2型Laves相合金被认为是继目前商品化的AB5型稀土基贮氢合金后的第二代MH/Ni电池新型负极材料。
4)Zr-based Laves phase alloyZr基Laves相合金
5)Laves phase hydrogen storage alloysLaves相贮氢合金
6)Zr-based Laves phase alloys锆基Laves相合金
延伸阅读

La元素名称:镧元素原子量:138.9元素类型:金属原子序数:57元素符号:la元素中文名称:镧元素英文名称:lanthanum核内质子数:57核外电子数:57核电核数:57质子质量:9.5361e-26质子相对质量:57.399所属周期:6所属族数:iiib摩尔质量:139密度:6.7熔点:920.0沸点:3469.0外围电子排布:5d1 6s2核外电子排布:2,8,18,18,9,2颜色和状态:银白色金属原子半径:2.74常见化合价:+3发现人:莫桑德尔发现时间和地点:1839 瑞典发现人:莫桑德尔(c.g.mosander) 发现年代:1839年发现过程:1839年由莫桑德尔(c.g.mosander)发现的。元素描述:银白色的软金属,有延展性?;灾驶钇?。能与水作用。易溶于稀酸。在空气中易氧化;加热能燃烧,生成氧化物和氮化物。在氢气中加热生成氢化物。它是稀土元素中第二个最丰富的元素,常与其他稀土元素一起存在于独居石中、氟碳锶镧矿中。它是铀、钍或钚裂变的放射性产物之一。它能赋予玻璃特殊的折光性能,使玻璃具有较高的折射率。元素来源:镧的制备一般由水合氯化镧经脱水后,用金属钙还原,或由无水氯化镧经熔融后电解而制得。在潮湿空气中迅速失去光泽,生成无色化合物,它存在于稀土矿中,通常把它归在稀土族内,是混合稀土的一种主要成分元素用途:可制合金,亦可做催化剂。因此,常用来制造昂贵的照相机镜头。138la是放射性的,半衰期为1.1×1011年,曾被试用来治疗癌症。元素辅助资料:铈和钇被发现后,虽然一些化学家们意识到,它们不是纯净的元素,但是直到它们被发现大约40年后,由于瑞典化学家莫桑德尔等人耐心的分析才把谜解开。莫桑德尔是贝齐里乌斯的学生和助手,他对发现和研究稀土元素作出较大贡献。1839年他将硝酸铈加热分解,发现只有一部分溶解在硝酸中。他把溶解的氧化物称为镧土(lanthana),元素称为lanthanum(镧),元素符号是la,来自希腊文lanthanō(“隐藏”)。镧以及接着发现的铒、铽打开了发现稀土元素的第二道大门,是发现稀土元素的第二阶段。他们的发现是继铈和钇两个元素后又找到稀土元素中的三个。元素符号: la 英文名: lanthanum 中文名: 镧相对原子质量: 138.905 常见化合价: +3 电负性: 1.1外围电子排布: 5d1 6s2 核外电子排布: 2,8,18,18,9,2同位素及放射线: la-134[6.5m] la-137[6000y] la-138(放 εβ[1.05e10y]) *la-139 la-140[1.67d] la-141[3.9h] la-142[1.54m]电子亲合和能: 53 kj·mol-1第一电离能: 538.1 kj·mol-1 第二电离能: 1067 kj·mol-1 第三电离能: 1850 kj·mol-1单质密度: 6.7 g/cm3 单质熔点: 920.0 ℃ 单质沸点: 3469.0 ℃原子半径: 2.74 埃 离子半径: 1.18(+3) 埃 共价半径: 1.69 埃常见化合物: la2o3 lacl3 laf3发现人: 莫桑德尔 时间: 1839 地点: 瑞典名称由来:希腊文:lanthanein(隐藏)。元素描述:柔韧有延展性的银白色金属。元素来源:与稀土共存于独居石和bastnasite矿中。独居石砂一般含有25%的镧。元素用途:用于制造强力焊条和碳弧灯,协助制造高等级铕金属。镧能增大玻璃的折射率,因此也用来制造高级照相机的镜头。
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