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hydride at temperature range of 100-900 ℃ in mixture gases of helium and oxygen was studied by gas phase analysis(GPA). Meanwhile, the morphologies of the oxide scale formed on the surface of zirconium...; oxide scale 1 Introduction Zirconium and its alloys have been found their main applications in nuclear engineering for its excellent corrosion resistance, good mechanical properties and  ......
Trans. Nonferrous Met. Soc. China 30(2020) 90-98 Evaluation of nanometer-sized zirconium oxide incorporated Al-Mg-Ga-Sn alloy as anode for alkaline aluminum batteries Mortaza AFSHARI1, Robab ABBASI2..., Malek Ashtar University of Technology, Tehran 15875-1774, Iran Received 1 April 2019; accepted 11 November 2019 Abstract: Zirconium oxide nanoparticles with 0.4 wt.% and 0.8 wt.% are incorporated......
, while those of the (100)m and (110)m are weak. The higher DO content in super-heated steam accelerates the growth of oxide films, thus decreasing the corrosion resistance of zirconium alloys. Key words: zirconium alloy; dissolved oxygen; corrosion; microstructure; oxide film; super-heated steam 1 Introduction Zirconium alloys are widely used as nuclear fuel cladding in water cooled nuclear......
the corrosion resistance of Zr-4 alloy, while the coarse SPPs of Zr2(Pd,Fe) are harmful to the corrosion resistance. Key words: zirconium alloy; Zr-4 alloy; corrosion resistance; oxide film Zr具有优异的核性能,它的热中子..., LI Qiang, LIU Wen-qing, YAO Mei-yi, CHU Yu-liang. The effects of water chemistry and composition on the microstructure evolution of oxide films on zirconium alloys during autoclave tests[J]. Rare......
Zirconium oxide is an insulator, and as its main valence state is four, it is difficult to introduce electron into the oxide structure. FRAY and CHEN[9] found that reduction started at the point adjacent to the lead wire,and then propagated quickly on the surface of the pallet leading to the formation of a porous zirconium metal surface layer, by further reduction of the oxide, gradually......
氧化膜中四方氧化锆对Zr-Sn-Nb合金耐腐蚀性影响的研究 耿迅1,刘文庆1,周邦新1,刘庆冬1,姚美意1 (1.上海大学,上海,200444) 摘要:将经过不同条件处理的Zr-Sn-Nb合金样品放在装有0.01 mol/L的LiOH溶液,350℃,16.8 MPa的高压釜中腐蚀,用椭圆偏振法研究氧化膜中四方氧化锆对Zr-Sn-Nb合金耐腐蚀性的影响.研究发现,经过42和190 d腐蚀后,580℃/冷轧/500℃样品中的四方氧化锆比其它样品多,但是腐蚀速率却相反.说明了少量的四方氧化锆是影响Zr-Sn-Nb合金耐腐蚀性的主要因素之一,四方氧化锆的形成提高了合金的耐腐蚀性. 关键词:锆合金; 氧化膜; 耐腐蚀性; 椭圆偏振法; zirconium alloy; oxide film; corrosion resistance; Spectroscopy Ellipsometry......
Confocal Laser Scanning Microscope Evaluation of Early Bacterial Colonization on Zirconium Oxide and Titanium Surfaces:An in vivo Study王敏1,白轶2,YANG Hui3,ZOU Haixiao1,夏海斌2,王贻宁41. Key Laboratory... colonization on zirconium oxide and titanium surfaces in vivo quantitatively using a confocal laser scanning microscope (CLSM). Ten samples of zirconium oxide ceramic and commercially pure titanium were......
in terms of asperity contacts, crack formation, propagation and final fracture. Key words: zirconium; thermal oxidation; zirconium oxide; surface finish; friction; wear 1 Introduction Zirconium and its.... In particular, thermal oxidation is a simple process carried out in air furnaces at 550-800 °C to produce a relatively thick (a few microns) zirconium oxide (ZrO2) layer at the surface......
Structure and properties of cerium zirconium mixed oxide prepared under different precipitate aging processes王琦1,岳梅1,钟强1,崔梅生1,黄小卫1,侯永可1,王磊1,杨宇轩2,龙志奇1,冯宗玉11. National Engineering Research Center..., the effects of different aging process on the structure and properties of cerium zirconium mixed oxides were investigated. The results indicated that the mixed structure of 11.48% CeO2 phase and 88.52......
Structure and properties of cerium zirconium mixed oxide prepared under different precipitate aging processes王琦1,岳梅1,钟强1,崔梅生1,黄小卫1,侯永可1,王磊1,杨宇轩2,龙志奇1,冯宗玉11. National Engineering Research Center..., the effects of different aging process on the structure and properties of cerium zirconium mixed oxides were investigated. The results indicated that the mixed structure of 11.48% CeO2 phase and 88.52......