Hewen Zheng

ORCID: 0000-0002-3317-159X
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Research Areas
  • Advanced materials and composites
  • Microwave-Assisted Synthesis and Applications
  • Advanced ceramic materials synthesis
  • Metal Extraction and Bioleaching
  • Iron and Steelmaking Processes
  • Microwave Dielectric Ceramics Synthesis
  • Food Drying and Modeling
  • Metallurgical Processes and Thermodynamics
  • Semiconductor Lasers and Optical Devices
  • Induction Heating and Inverter Technology
  • Nuclear materials and radiation effects
  • Thermal and Kinetic Analysis
  • Advanced Photonic Communication Systems
  • Magnetism in coordination complexes
  • Optical Network Technologies
  • Glass properties and applications
  • Pigment Synthesis and Properties
  • Crystal Structures and Properties
  • MXene and MAX Phase Materials
  • Titanium Alloys Microstructure and Properties
  • Organometallic Compounds Synthesis and Characterization
  • Catalytic Processes in Materials Science
  • Recycling and Waste Management Techniques

Yunnan University
2020-2022

Kunming University of Science and Technology
2020-2022

Minzu University of China
2020

Huawei Technologies (China)
2019

Applying microwave heating, in substitution for conventional industrial process renders energy-saving and clean efficient mineral reduction. In this work, the behavior of low-grade pyrolusite during microwave-assisted heating was systematically investigated, phase transformation reduction characterized by TG-DTG-DSC XRD; meanwhile, a model mechanism proposed, with three-stage identified. Results indicated that manganese oxide (MnO) powder can be efficiently prepared, ratio presented positive...

10.1016/j.jmrt.2020.05.097 article EN cc-by-nc-nd Journal of Materials Research and Technology 2020-06-05

Because of the shortage natural rutile, synthetic rutile is a widely used substitute welding materials for owing to its excellent mechanical and thermal properties. In this work, TiO2 was prepared from oxidation roasting titanium slag, which can be as special materials. The phase microstructure characteristics raw roasted samples were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) Fourier-transform infrared (FT-IR) spectroscopic analysis. Results indicated...

10.1016/j.jmrt.2020.05.044 article EN cc-by-nc-nd Journal of Materials Research and Technology 2020-06-04

Vanadium pentoxide (V2O5) is one of the fundamental materials applied in productions batteries, vanadium-aluminium alloys, biomedicine, catalysis, etc. High purity V2O5 can be prepared from an intermediate product, namely ammonium polyvanadate (APV), using roasting after a drying process. In this paper, microwave heating was used as alternative option for APV, which has advantages including selective heating, high efficiency, energy-saving, and environmental protection. The authors...

10.1016/j.jmrt.2021.05.056 article EN cc-by-nc-nd Journal of Materials Research and Technology 2021-05-26

Over 200m OM4 fiber transmission of 850nm 112Gbps/lane using advanced partial response and noise whitening (PRNW) algorithm only commercial components was firstly experimentally demonstrated, with -3.5dBm receiver sensitivity @ 7% overhead HD-FEC.

10.23919/ps.2019.8817831 article EN 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC) 2019-07-01

Manganese ore is an important metallurgical raw material that holds strategic position in the national economy of China. However, grade manganese country mostly low, and utilization efficiency low-grade resources which seriously restricts healthy stable development China’s industry. As a new green heating method, microwave expected to address problems conventional methods realize effective ore. In this paper, research status composite reduction pyrolusite recent years reviewed. Microwave...

10.2174/2213335607999201222095248 article EN Current Microwave Chemistry 2020-12-23
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