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Volume 44 , Issue 01 | 25 Mar 2024

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Volume 44 , Issue 01 | 31 Mar 2024

Scopus Indexed(2024)

Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology

Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology (ISSN:0253-9748) and (E-ISSN:1672-7126) is a scopus indexed journal since 1996. The journal is published by Zhongguo Zhenkong Xuehul. The main scope of the journal is Materials Science: Surfaces, Coatings and Films ,Metals and Alloys,Materials Chemistry,Electronic, Optical and Magnetic Materials,Condensed Matter Physics and all sort of Engineering subjects. The journal welcomes all kind of original paper around the world.
Lizi Jiaohuan Yu Xifu/Ion Exchange and Adsorption Fa yi xue za zhi Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology Research Journal of Chemistry and Environment Consultant (ISSN:0010-7069) Jiaotong Yunshu Xitong Gongcheng Yu Xinxi/ Journal Of Transportation Systems Engineering And Information Technology


Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology


Aim and Scopes

-> Materials Science:

1. Surfaces, Coatings and Films, 2. Metals and Alloys, 3. Materials Chemistry, 4. Electronic, Optical and Magnetic Materials, 5. ceramics, glasses, polymers, energy materials,, 6. composite materials, fibers, nanostructured materials, 7. nanocomposites, and biological and biomedical materials,

-> Earth Science

-> Physics

-> Astronomy


Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology


Range of intestinal microflora in patients with allergic rhinitis, atopic bronchial asthma and urticaria

Paper ID- JVST-11-05-2023-1633

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The epidemic and prevention of plagues in modern Shanghai

Paper ID- JVST-10-05-2023-1632

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Influence of Negative Bias and Magnetic Field on Structure of Microarc Oxidation Coating

Paper ID- JVST-10-05-2023-1631

Humid air is a very important service environment, in which metal friction parts should be enhanced to offer excellent corrosion resistance and wear resistance. The B4C coating is an excellent candidate material to enhance the corrosion resistance and tribological behaviors. The purpose is to investigate the effect of negative bias voltages on the tribological properties of B4C coatings under a high relative humidity environment. Amorphous B4C coatings were successfully prepared by closed field unbalanced magnetron sputtering technology and its microstructure, hardness, elastic modulus, adhesive force and tribological properties were systematically studied. Results demonstrate that the B4C coatings deposited at each negative bias voltage have a columnar structure and the surface roughness remained unchanged (about 1.0 nm), while the thickness, hardness, elastic modulus and adhesion force increase first and then decrease with the negative bias voltage increasing. Among them, the B4C (−50 V) coating showed the best mechanical properties. It should be noted that the B4C (−50 V) coating with an excellent corrosion resistance also exhibits the lowest friction coefficient (~0.15) and wear resistance (7.2 × 10−7 mm3·N−1·m−1) under humid air (85% RH). This is mainly due to the tribochemical reaction of B4C during a sliding process to produce boric acid at the sliding interface. B4C coatings can provide an excellent corrosion resistance and high wear resistance due to their high chemical stability and high hardness.

Experimental and Numerical Study on Relative Sensitivity of Hot Cathode Ionization Vacuum Gauge

Paper ID- JVST-07-05-2023-1630

In this study, a cylindrical triode ultrahigh vacuum ionization gauge with a screen-printed carbon nanotube (CNT) electron source was developed, and its metrological performance in different gases was systematically investigated using an ultrahigh vacuum system. The resulting ionization gauge with a CNT cathode responded linearly to nitrogen, argon, and air pressures in the range from ~4.0 ± 1.0 × 10−7 to 6 × 10−4 Pa, which is the first reported CNT emitter-based ionization gauge whose lower limit of pressure measurement is lower than its hot cathode counterpart. In addition, the sensitivities of this novel gauge were ~0.05 Pa−1 for nitrogen, ~0.06 Pa−1 for argon, and ~0.04 Pa−1 for air, respectively. The trend of sensitivity with anode voltage, obtained by the experimental method, was roughly consistent with that gained through theoretical simulation. The advantages of the present sensor (including low power consumption for electron emissions, invisible to infrared light radiation and thermal radiation, high stability, etc.) mean that it has potential applications in space exploration

Design of the Main Vacuum System of Hefei Medical Medium Energy Superconducting Proton Cyclotron

Paper ID- JVST-07-05-2023-1629

Currently, international nuclear fission reactors producing medical isotopes face the problem of shutdown and maintenance, decommissioning, or dismantling, while the production capacity of domestic research reactors for medical radioisotopes is inadequate, and the supply capacity for medical radioisotopes faces major challenges in the future. Fusion reactors are characterized by high neutron energy, high flux density, and the absence of highly radioactive fission fragments. Additionally, compared to fission reactors, the reactivity of the fusion reactor core is not significantly affected by the target material. By building a preliminary model of the China Fusion Engineering Test Reactor (CFETR), a Monte Carlo simulation was performed for particle transport between different target materials at a fusion power of 2 GW. The yields (specific activity) of six medical radioisotopes (14C, 89Sr, 32P, 64Cu, 67Cu, and 99Mo) with various irradiation positions, different target materials, and different irradiation times were studied, and compared with those of other high-flux engineering test reactors (HFETR) and the China Experimental Fast Reactor (CEFR). The results show that this approach not only provides competitive medical isotope yield, but also contributes to the performance of the fusion reactor itself, e.g., tritium self-sustainability and shielding performance.