Vacuum
IF
3.63
Papers
19.7k
Papers 10,000
1 page of 1,000 pages (10k results)
#1Gengyi Dong (DUT: Dalian University of Technology)
#2Xiaogang You (DUT: Dalian University of Technology)H-Index: 9
Last. Yi Tan (DUT: Dalian University of Technology)H-Index: 18
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Abstract null null As a new refining technology, the electron beam smelting has been widely used for alloy purification due to its advantages in removing volatile impurities and non-metallic inclusions. However, the evaporation of alloy elements during the smelting process leads to uncontrollable alloy composition. In order to predict the volatilization behavior of the alloy elements, various theoretical models have been proposed. These models can be well applied to binary or ternary alloys, but...
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#1Zhu Jianming (Chang'an University)H-Index: 1
#2Peng Zhao (Chang'an University)H-Index: 10
Last. Li Jiangjiang (Chang'an University)H-Index: 1
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Abstract null null Vanadium-nitrogen alloy was prepared at 900 °C by a coupled electric and thermal field using vanadium pentoxide and carbon black powder as raw materials. The effect of different alternating current densities and reaction time on the material phase and chemical composition of nitridation products was investigated. It was demonstrated that the current densities had a great influence on the formation of vanadium nitride (VN) phase and the content of nitrogen in the final products...
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#1Wangjian Zhai (SCNU: South China Normal University)H-Index: 2
#2Junfeng He (SCNU: South China Normal University)H-Index: 3
Last. Qinyu He (SCNU: South China Normal University)H-Index: 18
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Abstract null null Fe3O4 nanoparticles as a magnetic adsorbent were prepared and used to effectively remove tetracycline (TC) from neutral aqueous solution. Several characterizations show that the as-prepared Fe3O4 nanoparticles possess a saturation magnetization of 79.4 emu/g, a specific surface area of 58.8 m2/g and an average particle size of 25 nm. Batch experiments were carried out to investigate the adsorption behavior and mechanisms. For a 100 ml TC solution with an initial concentration ...
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#1Yubin Kang (CUST: Changchun University of Science and Technology)H-Index: 2
#2Jilong Tang (CUST: Changchun University of Science and Technology)H-Index: 13
Last. Fengyuan Lin (CUST: Changchun University of Science and Technology)H-Index: 5
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Abstract null null We realized the control on the crystal structure of GaAs nanowires (NWs) by silicon (Si) doping and V/III ratio. This viewpoint has been clearly evidenced by Raman spectrum combined with high-resolution transmission electron microscopy (HRTEM). Undoped GaAs NWs generally show a mixture of zinc blende (ZB) and wurtzite (WZ) phases; the addition of Si dopant and high V/III ratio are beneficial for the nucleation of ZB structure. Field effect transistor (FET) devices were fabrica...
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#1Sławomir Jodzis (WUT: Warsaw University of Technology)H-Index: 16
#2Klaudia Baran (WUT: Warsaw University of Technology)
Abstract null null The ozone synthesis and decomposition processes in a heated ozone generator (10–70 °C) in a pulse discharge was investigated. Concentrated ozone (up to 200 g/Nm−3) was also decomposed at temperatures of 10–90 °C without discharges for comparison. It was found that for residence times up to approx. 4 s, the gas temperature in the gap has no significant effect on the ozone concentration drop. However, the appearance of electrical discharges in the gap causes that even at low tem...
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#1Fangyuan YanH-Index: 2
#2Bailing JiangH-Index: 2
Last. Xu WangH-Index: 2
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Abstract null null An investigation on the corrosion protection and electrical conductivity films on metal bipolar plates can be achieved through magnetron sputtering. This work characterized the microstructures of TiN–Ag nanocomposite deposited at different temperatures with thermal stabilization. All the TiN–Ag films show adequate electrical conductivity with the interfacial contact resistance (ICR) of 4.81, 4.78, 4.52, 4.18 mΩ cm2 at the deposition temperature of 200 °C–350 °C on SS substrate...
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#1Ievgen Solodkyi (National Technical University)H-Index: 8
#2S. Teslia (National Technical University)
Last. P. I. Loboda (National Technical University)H-Index: 8
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Abstract null null AlCrFeCoNiV high entropy alloy (HEA) was used as a binder for the densification of WC-W2C eutectic particles by spark plasma sintering (SPS) at different sintering temperatures (1000–1400 °C). The relationship between phase composition and microstructure of (WC–W2C) – 10 wt% AlCrFeCoNiV metal-matrix composites depending on the sintering temperature was investigated and mechanical properties were determined. The bcc solid solution of HEA binder formed during mixing with WC-W2C ...
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#1Duanzhi Wang (CSU: Central South University)
#2Zhengbing Xiao (CSU: Central South University)H-Index: 8
Abstract null null To uncover the mechanical performance and micro-structure of Al/L12-Al3Zr interface through density functional theory, four interface models are investigated considering two different terminations of L12-Al3Zr surfaces along the [001] direction. Results indicated stacking sequence and atom type between two phases influences the mechanical performance of the interface quite well. The interface consisting of four Al atom-terminated Al(001) slab as well as one Al and four Zr atom...
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#1Cao Yupeng (Nantong University)
#2Pengfei Zhu (Nantong University)
Last. Qiu Ming
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Abstract null null To examine the relationship between the X-ray Diffraction (XRD) pattern and microstructure of the surface of E690 high-strength steel induced by laser shocks, X-ray diffractometry and transmission electron microscopy (TEM) were used to detect the laser-impact zone on the steel surface to obtain its diffraction pattern and microstructural morphology, followed by the establishment of a surface microstructure response model of the E690 high-strength steel under laser shock. The g...
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#1Kui Ling (GXU: Guangxi University)H-Index: 3
#2Qiufeng Mo (GXU: Guangxi University)H-Index: 3
Last. Weizhou Li (GXU: Guangxi University)H-Index: 18
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Abstract null null To investigate the growth characteristics and corrosion resistance of Micro-arc oxidation (MAO) coatings prepared from Al–Mg composite plates under sodium silicate electrolyte, comparative experiments were performed using single plate Al and Mg. The results showed that the breakdown of the Mg plate (P–Mg) in the Al–Mg composite plate occurred first than the Al plate (P–Al). The coating thickness of P–Al and P–Mg gradually converged with time. Because after the Al and Mg plates...
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