Improvement of Hydriding Property in ZrNi Alloy by Means of Implantation

1997 ◽  
Vol 504 ◽  
Author(s):  
T. Suda ◽  
T. Yonezawa ◽  
H. Arashima ◽  
S. Ohnuki ◽  
T. Kabutomori
Keyword(s):  
Surface Modification ◽  
High Temperature ◽  
Low Temperature ◽  
Ion Implantation ◽  
Surface Film ◽  
Hydrogen Ion ◽  
Surface Activation ◽  
Micro Cracks ◽  
Radiation Induced ◽  
Hydrogen Ion Implantation

ABSTRACTIon-implantation was applied to the surface modification of ZrNi for improving the surface activation of hydrogen absorbing alloys. At the condition of low temperature, only implanted areas showed micro-cracks and pulverization. At high temperature, the reaction was very rapid and both implanted and shielded areas showed the pulverization. The results indicate hydrogen ion-implantation can enhance the activation of this alloy, and the roles of radiation-induced implanted hydrogen and surface film are discussed.

Effects of Hydrogen Ion Implantation and Thermal Annealing on Structural and Optical Properties of Single-crystal Sapphire.

2011 ◽  
Vol 1354 ◽  
Author(s):  
William T. Spratt ◽  
Mengbing Huang ◽  
Chuanlei Jia ◽  
Lei Wang ◽  
Vimal K. Kamineni ◽  
...  
Keyword(s):  
Optical Properties ◽  
High Temperature ◽  
Ion Implantation ◽  
Single Crystal ◽  
Crystal Defects ◽  
Hydrogen Ion ◽  
Sensing Applications ◽  
Prism Coupling ◽  
Single Crystal Sapphire ◽  
Hydrogen Ion Implantation

ABSTRACTDue to its outstanding thermal and chemical stability, single-crystal sapphire is a crucial material for high-temperature optical sensing applications. The potential for using hydrogen ion implantation to fabricate stable, high temperature optical waveguides in single crystal sapphire is investigated in this work. Hydrogen ions were implanted in c-plane sapphire with energies of 35 keV and 1 MeV and fluences 1016-1017/cm2. Subsequent annealing was carried out in air at temperatures ranging from 500˚C to 1200˚C. Complementary techniques were used to characterize the samples, including ellipsometry and prism coupling to examine optical properties, Rutherford backscattering/ion channeling for crystal defects, and nuclear reaction analysis for hydrogen profiling. Several guiding modes were observed in H-implanted (1 MeV) samples annealed above 800˚C through prism coupling, and a maximum index modification of 3% was observed in the 35 keV samples and 1% in the 1 MeV samples through ellipsometry, with the 1 MeV index variation being confirmed through prism coupling. The possible causes of the index modifications, such as H related defects, as well as implications for tailoring the refractive index of sapphire are discussed.

The Influence Of Silicon Orientation On Surface Blistering Behaviors for Molecular Hydrogen Ion Implantation

2019 ◽  
Vol 34 (1) ◽  
pp. 1159-1164
Author(s):  
Yu Cheng Hsiao ◽  
Jenq-Horng Liang ◽  
Chih-Ming Lin
Keyword(s):  
Ion Implantation ◽  
Molecular Hydrogen ◽  
Hydrogen Ion ◽  
Hydrogen Ion Implantation

X-ray-emission study of the structure of Si:H layers formed by low-energy hydrogen-ion implantation

2002 ◽  
Vol 36 (5) ◽  
pp. 568-573 ◽  
Author(s):  
V. R. Galakhov ◽  
I. V. Antonova ◽  
S. N. Shamin ◽  
V. I. Aksenova ◽  
V. I. Obodnikov ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Low Energy ◽  
Hydrogen Ion ◽  
X Ray ◽  
Emission Study ◽  
Hydrogen Ion Implantation

scholarly journals Effects of hydrogen ion implantation dose on physical and electrical properties of Ge-on-insulator layers fabricated by the smart-cut process

AIP Advances ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 015045
Author(s):  
C.-M. Lim ◽  
Z. Zhao ◽  
K. Sumita ◽  
K. Toprasertpong ◽  
M. Takenaka ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Ion Implantation ◽  
Implantation Dose ◽  
Hydrogen Ion ◽  
Insulator Layers ◽  
Hydrogen Ion Implantation

scholarly journals Research on the Properties of Low Temperature and Anti-UV of Asphalt with Nano-ZnO/Nano-TiO2/Copolymer SBS Composite Modified in High-Altitude Areas

2020 ◽  
Vol 2020 ◽  
pp. 1-15 ◽  
Author(s):  
Xiangbing Xie ◽  
Tao Hui ◽  
Yaofei Luo ◽  
Han Li ◽  
Guanghui Li ◽  
...  
Keyword(s):  
Surface Modification ◽  
High Temperature ◽  
Low Temperature ◽  
Orthogonal Test ◽  
Nano Zno ◽  
Carbonyl Index ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Before And After ◽  
Sbs Modified Asphalt

Strong ultraviolet light and low-temperature are the typical environmental characteristics in high-altitude areas. The performance of SBS-modified asphalt in the above environmental characteristics needs further study. To improve the resistance ultraviolet (UV) ageing and low-temperature performance of copolymer- (SBS-) modified asphalt, an SBS-modified asphalt containing nano-ZnO and nano-TiO2 is proposed. In this paper, nano-ZnO, nano-TiO2, and SBS were used as modifiers with the silane coupling agent (KH-560) as the nanomaterial surface modification. The orthogonal test table was used to analyse the effects of the three modifiers on the physical properties of modified asphalt at different dosages. On this basis, the physical properties, low-temperature properties, and ageing indices (carbonyl index and sulfoxide index) were studied for base asphalt, SBS-modified asphalt, nano-ZnO/SBS-modified asphalt, and nano-ZnO/nano-TiO2/SBS composite-modified asphalt before and after photoaging. The content changes of characteristic elements (Zn and Ti) in the nano-ZnO/nano-TiO2/SBS composite-modified asphalt before and after ageing were studied by scanning electron microscopy with energy dispersive spectroscopy (SEM/EDS), and the UV ageing mechanism was revealed. The results indicate that two nanoparticles show the best compatibility with asphalt after surface modification and can improve the binding ability between SBS and base asphalt. The orthogonal test analysis shows that nano-ZnO has a highly significant effect on the low- and high-temperature performance of the nano-ZnO/nano-TiO2/SBS composite-modified asphalt, and nano-TiO2 has a significant effect on the high-temperature performance. Three optimal composite-modified systems for base asphalt including 4% nano-ZnO/1.5% nano-TiO2/3.2% SBS were proposed and had the best antiaging ability. Compared with the sulfoxide index, the carbonyl index changed most obviously before and after ageing. Additionally, the results reveal that nano-TiO2 has a good absorption effect at a wavelength of 365 nm (ultraviolet light), while nano-ZnO is liable to photolysis, and its activity decreases at this wavelength.

A model for trapping and re-emission at hydrogen ion implantation

1994 ◽  
Vol 211 (2) ◽  
pp. 127-134 ◽  
Author(s):  
A.A. Pisarev ◽  
S.K. Zhdanov ◽  
O.V. Ogorodnikova
Keyword(s):  
Ion Implantation ◽  
Hydrogen Ion ◽  
Hydrogen Ion Implantation

Modification of electrical conductivity in RF magnetron sputtered ZnO films by low-energy hydrogen ion implantation

2006 ◽  
Vol 6 (3) ◽  
pp. 495-498 ◽  
Author(s):  
J. Kennedy ◽  
A. Markwitz ◽  
Z. Li ◽  
W. Gao ◽  
C. Kendrick ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Ion Implantation ◽  
Low Energy ◽  
Hydrogen Ion ◽  
Zno Films ◽  
Hydrogen Ion Implantation
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