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43 Newest Publications about the topic vacuum systems

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Pneumatic transport of explosive and hot bulk materials

05-Dec-2011 | S. Ya. Davydov, I. D. Kashcheev, Refractories and Industrial Ceramics, 2011

Detailed descriptions are given of the design, characteristics, and operation of a vacuum system for the pneumatic transport of explosive powders. Results are also presented from the design of a forced-air system for transporting converter dust and pulverized coal fuel.

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Investigations of a method for determining pumping speed and sorption capacity of nonevaporable getters based on in situ calibrated throughput

26-Aug-2011 | Bojan Erjavec and Janez Setina, Journal of Vacuum Science & Technology B, 2011

This paper presents a gas-sorption method, based on an in situ calibrated throughput, for characterizing nonevaporable getters (NEGs) of Ti- and Zr-based alloys. The main characteristics of the method are the adjustment of a constant injected gas flow, the prompt calibration of a throughput, and ...

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High throughput identification of components from traditional Chinese medicine herbs by utilizing graphene or graphene oxide as MALDI‐TOF‐MS matrix

01-Aug-2011 | Yang Liu; Junyan Liu; Peng Yin; Mingxia Gao; Chunhui Deng; Xiangmin Zhang, Journal of Mass Spectrometry, 2011

Abstract In this work, graphene or graphene oxide was utilized, for the first time, to identify small molecular components from traditional Chinese medicine (TCM) herbs, by acting as matrix of matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐TOF‐MS). Due to ...

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Ultraviolet curing adhesive-based optical fiber feedthrough for ultrahigh vacuum systems

29-Jul-2011 | J.-F. Clement, D. Bacquet, and P. Szriftgiser, Journal of Vacuum Science & Technology B, 2011

J.-F. Clement, D. Bacquet, and P. Szriftgiser Abstract not available. [J. Vac. Sci. Technol. A 28, 627 (2010)] published Thu Jun 24, 2010.

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Permeation studies on transparent multiple hybrid SiO2-PMMA coatings-Al2O3 barriers on PEN substrates

24-Jun-2011 | Journal of Sol-Gel Science and Technology, 2011

Abstract In this work we report the performance of permeation barriers based on organic/inorganic multilayer stacks. We have used PMMA-SiO2 (poly methyl methacrylate-silica) hybrid films synthesized through a sol–gel route as organic–inorganic components, whereas Al2O3 thin films were used as ...

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Vacuum electrothermal equipment: achievements and prospects

24-May-2011 | I. I. Vatulin, V. V. Miklushevskii, O. B. Minkov, A. V. Sukharev, V. A. Sukharev, Metallurgist, 2011

This article examines design features of modern vacuum electrothermal equipment used for melting and for heat treatments administered without changes in the state of aggregation of the material being treated, as well as furnaces used for recycling and furnaces built for research purposes. It is ...

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Enzymatic synthesis of lysophosphatidylcholine containing CLA from sn-glycero-3-phosphatidylcholine (GPC) under vacuum

21-Apr-2011 | Seung In, Hong , Yangha, Kim , Chong-Tae, Kim , In-Hwan, Kim, Food Chemistry, 2011

Lysophosphatidylcholine (LPC) was successfully synthesized by enzyme-catalyzed esterification of sn-glycero-3-phosphatidylcholine (GPC) with the acid form of conjugated linoleic acid (CLA), using a vacuum system. GPC was prepared from phosphatidylcholine (PC) by alkaline deacylation using a ...

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Comprehensive upgrade of the high‐resolution small‐angle neutron scattering instrument KWS‐3 at FRM II

01-Apr-2011 | Guenter Goerigk; Zoltan Varga, Journal of Applied Crystallography, 2011

After the KWS‐3 instrument was moved from Jülich to Munich (in the first half of 2007), it underwent a fundamental evaluation, with the final result that a major upgrade for the whole instrument became necessary. The main subject of the upgrade project was a general mirror refurbishment, i.e. a ...

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Growth of ultrathin Nb2O5 films on quartz substrates

29-Mar-2011 | S. V. Zaitsev, Yu. V. Gerasimenko, S. N. Saltykov, D. A. Khoviv, A. M. Khoviv, Inorganic Materials, 2011

Niobium oxide films have been grown by reactive rf sputtering in a vacuum system and characterized by absorption spectroscopy and X-ray diffraction. The thickness of the (optically transparent) films has been determined as a function of sputtering time by examining interference effects in a ...

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Formation of Gallium-induced nanostructures on single crystal HOPG surface

11-Feb-2011 | Jaspreet Sandhu, Amit Kumar Singh Chauhan, Govind, Journal of Nanoparticle Research, 2011

The room temperature growth of gallium atoms on the highly oriented pyrolytic graphite (HOPG) surface has been performed. The gallium atoms were deposited by thermal evaporation method in an ultra high vacuum system at a base pressure 5 × 10−10 torr. The X-ray photo electron spectroscopy (XPS) ...

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