molybdenum substrate
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2021 ◽  
pp. 81-86
Author(s):  
Sharifa Utamuradova ◽  
Sultanposha Muzafarova ◽  
Abdulla Abdugafurov ◽  
Kakhramon Fayzullaev ◽  
Elmira Naurzalieva ◽  
...  

Based on CdTe and CdZnTe detectors a number of promising devices were created, which found their application in metallurgy, in solving the problems of customs control and control of nuclear materials, as well as matrix detectors created for the manufacture of medical devices and devices for space research. Detectors, created on the basis of polycrystalline semiconductor CdTe and CdZnTe films with a columnar structure on a molybdenum substrate with a thickness d = 30150 μm, had a specific resistance p > 10^5 10^8 W-cm. The energy resolution of the CdTe and CdZnTe detectors at room temperature reached ~ 5 keV on the 59.6 keV 241Am line.


Coatings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 275
Author(s):  
Chong Zhang ◽  
Enze Liu ◽  
Zhi Zheng ◽  
Likui Ning ◽  
Jian Tong ◽  
...  

This work designs a silica (SiO2) layer on a molybdenum metal core to provide new insights on the corrosion resistance of the silica/silicide coating in the Ni-based superalloy. The molybdenum substrate coated with MoSi2 by pack cementation was pre-oxidized to fabricate a cristobalite scale on the surface and the preoxidation specimens were chosen to examine the corrosion-resistant property by using a DSM11 superalloy at 1550 °C. In order to prepare a cristobalite layer, the microstructure evolution of a 40- µm MoSi2 coating with the different oxidation parameters (temperature and time) was investigated. After casting test, the different casting results showed that the silicide layer was dissolved in the molten superalloy. However, the molybdenum matrix was found to be protected by the cristobalite layer, as well as accompanied by the cristobalite layer partially destroyed at the core/superalloy interfaces. Furthermore, the reason for the destruction of cristobalite layer was analyzed. The failure mechanism of the cristobalite layer was proposed during the cast process.


2020 ◽  
Vol 10 (10) ◽  
pp. 2447
Author(s):  
Qing Wang ◽  
Zhiwen Liang ◽  
Qi Wang ◽  
Guoyi Zhang

2019 ◽  
Vol 7 (31) ◽  
pp. 18373-18379 ◽  
Author(s):  
Yuan Cheng ◽  
Hui Bi ◽  
Xiangli Che ◽  
Wei Zhao ◽  
Dezeng Li ◽  
...  

Single-crystal graphene film growth by the seamless stitching of highly oriented single-crystal graphene domains on a resolidified Cu (111) surface.


Coatings ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 442 ◽  
Author(s):  
Anton Dubrovskiy ◽  
Olga Makarova ◽  
Sergey Kuznetsov

By electrochemical synthesis in the NaCl-KCl-Li2CO3 (1.5 wt.%)-Na2MoO4 (8.0 wt.%) melt on molybdenum, substrates with different configuration Mo2C coatings with the hexagonal lattice were obtained. The influence of the substrate form on the structure of Mo2C cathodic deposits was studied. The molybdenum carbide coatings on a molybdenum substrate (Mo2C/Mo) show a catalytic activity in the water–gas shift (WGS) reaction by at least three orders of magnitude higher than that of the bulk Mo2C phase. The catalytic activity remained constant during 500 h for the water–gas shift reaction.


2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Vijayshankar Asokan ◽  
Dancheng Zhu ◽  
Wei Huang ◽  
Hulian Wang ◽  
Wandong Gao ◽  
...  

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