电极材料,并提出了现阶段 W- La 2 0 3 电极材料研究进展 与方向。 关键词:电极材料;W- La 2 0 3 阴极;稀土合金 中图分类号:TG146. 4 文献标识码:A 文章编号:1 4—244X(2 2) 4— 55— 4 电弧等离子体由于具有很高的热源温度、能量
镀液中La2O3含量对Ni-W-La2O3复合镀层组织和性能的影响
(a) Tungsten grains, (b) intragranular and (c) intergranular La2O3 particles. As a result of the ultrafine W grain and homogeneous dispersed structure, the as-prepared W–La2O3 alloy reaches a relative high level of flexural strength and Vickers hardness at room temperature, which have the...
In this work, a Ni-W-La2O3composite coating was prepared by electrodeposition method. Microhardness tester and environmental scanning electron microscope equipped energy dispersive spectroscopy were employed to investigate the microhardness and the surface morphology of the composite coatings respectively, an...
Carrier separation and Vth measurements of W-La2O3 gated MOSFET structures after electrical stress Using a W-La2O3 gated MOSFET structure, we report the effect of substrate and gate injection of electrons on the breakdown and electr...
采用真空热压烧结法制备La2O3-TiC/W复合材料,并对其组织结构和力学性能进行了研究。结果表明:在一定成分范围内,La2O3和TiC的加入提高了复合材料的力学性能,La2O3和TiC共同作用时的强化效果强于La2O3和TiC单独作用的强化效果,但La2O3-TiC/W复合材料的密度和相对密度随TiC含量的增加而下降,并进而影响硬度和弹性...
采用粉末冶金法制备La2O3和TiC协同增强钨基复合材料,研究La2O3-TiC/W复合材料的室温力学性能.结果表明:与纯钨相比,La2O3和TiC显著提高材料的硬度、弹性模量、抗弯强度和断裂韧性;La2O3-TiC/W复合材料抗弯强度在TiC的质量分数为5%时出现最大值898MPa,断裂韧性在TiC的质量分数为10%时出现最大值10.07MPa·m1...
学术范收录的Journal Microstructure and texture in W and W-1wt%La2O3 processed by high-pressure torsion,目前已有全文资源,进入学术范阅读全文,查看参考文献与引证文献,参与文献内容讨论。学术范是一个在线学术交流社区,收录论文、作者、研究机构等信息,是一个与
摘要 通过水热法制备粒度均匀的Al2O3/La2O3/(W,Mo)C纳米复合粉体,采用放电等离子烧结技术制备Al2O3/La2O3/(W,Mo)C无黏结相硬质合金刀具,利用激光加工技术在刀具表面制备不同沟槽参数的表面微织构,采...展开更多 Al2O3/La2O3/(W,Mo)C nanocomposite powders with uniform particle size were prepared...
采用粉末冶金法制备La2O3和TiC协同增强钨基复合材料,研究La2O3-TiC/W复合材料的室温力学性能.结果表明:与纯钨相比,La2O3和TiC显著提高材料的硬度、弹性模量、抗弯强度... 陈勇,吴玉程,于福文,... - 《兵器材料科学与工程》 被引量: 6发表: 2008年 La2O3-TiC/W复合材料组织结构与力学性能 采用真空热压...