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Cui H.,CAS Institute of Process Engineering | Cui H.,Research Institute of Synthetic Crystals | Wu X.,CAS Institute of Process Engineering | Chen Y.,CAS Institute of Process Engineering | Boughton R.I.,Bowling Green State University
Materials Research Bulletin | Year: 2014

Mesoporous MgO particles have been synthesized through a novel template-free hydrothermal co-precipitation method using a Mg(NO 3)2 solution as the magnesium source and NaCO3 as precipitant. The samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N2 adsorption-desorption analysis. The results indicate that the MgO samples have a disordered mesoporous structure, a large BET surface area, and a large pore volume. The effect of reaction temperature on the MgO product BET surface area was studied. A possible formation and crystal growth mechanism for mesoporous MgO is proposed. © 2013 Elsevier Ltd. All rights reserved. Source


Cui H.,CAS Institute of Process Engineering | Cui H.,Research Institute of Synthetic Crystals | Wu X.,CAS Institute of Process Engineering | Chen Y.,CAS Institute of Process Engineering | And 2 more authors.
Materials Research Bulletin | Year: 2015

Pure MgO and Cu-doped MgO nanopowders was obtained by a chemical co-precipitation process. The influence of copper doping on the crystal structure and particle morphology of MgO is discussed. The XPS results indicate that the Cu ion has been successfully incorporated into the MgO lattice. Adsorption tests show that the pseudo-second-order fitting equation is better for describing the adsorption kinetics of chlorine on MgO nanoparticles. The antibacterial properties of MgO nanopowders were investigated, as well as the influence of storage time on the adsorption and the antibacterial properties. © 2014 Elsevier Ltd. All rights reserved. Source


Yan H.,Zhengzhou Railway Vocational and Technical College | Chen B.,Zhengzhou Railway Vocational and Technical College | Huang C.-X.,Research Institute of Synthetic Crystals
Rengong Jingti Xuebao/Journal of Synthetic Crystals | Year: 2013

Fully transparent polycrystalline spinel has been prepared by combined vacuum sinteringcombined with hot-pressing and hot isostatic pressing using high purity, ultrafine spinel powder. The effects of sintering processing on microstructure and density of transparent polycrystalline spinel were studied. The results indicated that the density of spinel increased as the sintering temperature and sintering time increasing, higher sintering temperatures lead to a substantial grain. Source


Liu C.-H.,Southwest University of Science and Technology | Zhong L.,Southwest University of Science and Technology | Lei Y.-M.,Research Institute of Synthetic Crystals | Hou L.,Sichuan University
Rengong Jingti Xuebao/Journal of Synthetic Crystals | Year: 2014

Adding KReO4 to electroless, a smooth and compact Ni-P-Re alloy coating were obtained. The products were characterized by SEM, XRD and EDS. The results show that coating is an amorphous structure. But because of Re element's adding, it delayed the conversion time from amorphous structure to crystalline structure until 600 ℃. The coating oxidation weight increase is decreased obviously, the fretting friction coefficient of Ni-Re-P is inferior to Ni-P coating's. It shows excellent ablitity of anti-oxidation and anti-wear and tear, it is in favour of keeping excellent mechanical property under high temperature environment. Source


Li Y.-F.,Research Institute of Synthetic Crystals | Guo Z.-M.,Research Institute of Synthetic Crystals
Rengong Jingti Xuebao/Journal of Synthetic Crystals | Year: 2012

In this paper, the subjects, authors, quantity and citations of the published articles in Journal of Synthetic Crystals during 2002-2012 were statistically analyzed, and the main achievements in the field of synthetic crystals were reported. In these ten years, there were altogether 2643 papers with authors scattered in 211 or 985 project universities and CAS institutes and some of the articles are supported by research funds. This paper also demonstrated the characteristics of Journal of Synthetic Crystals in the hope of promoting academic exchange in the field of synthetic crystals and technological innovation in the field of synthetic crystals. Source

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