Yuanjun Ma

ORCID: 0000-0003-0634-2274
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About
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Research Areas
  • High Temperature Alloys and Creep
  • Metallurgy and Material Forming
  • Microstructure and mechanical properties
  • Aluminum Alloy Microstructure Properties
  • Additive Manufacturing Materials and Processes
  • Metal Alloys Wear and Properties
  • High-Temperature Coating Behaviors
  • Surface Treatment and Residual Stress
  • Solar Thermal and Photovoltaic Systems
  • Solar-Powered Water Purification Methods
  • Advanced materials and composites
  • Metallurgical Processes and Thermodynamics
  • Hydrogen embrittlement and corrosion behaviors in metals
  • Metal and Thin Film Mechanics
  • Titanium Alloys Microstructure and Properties
  • Semiconductor materials and devices
  • Nuclear Materials and Properties
  • Membrane Separation Technologies
  • Powder Metallurgy Techniques and Materials
  • Advanced Memory and Neural Computing
  • MXene and MAX Phase Materials
  • High Entropy Alloys Studies
  • Welding Techniques and Residual Stresses
  • Advanced Welding Techniques Analysis
  • Diamond and Carbon-based Materials Research

University of California, Merced
2023

Lanzhou Petrochemical Polytechnic
2023

Lanzhou University of Technology
2018-2022

Chinese Academy of Sciences
2022

Beijing Institute of Technology
2018-2020

Beijing Institute of Optoelectronic Technology
2018

Institute of Microelectronics
2018

This research employs rGO-coated fabric for desalination, harnesses solar heat power generation via TEG modules, and produces emission-free hydrogen through seawater electrolysis, showcasing an in situ solution desalination waste remediation.

10.1039/d3ta04715f article EN Journal of Materials Chemistry A 2023-11-29

With ER2319 and B4C powder as feedstocks additives, respectively, a wire arc additive manufacturing (WAAM) system based on double-pulse melting electrode inert gas shielded welding (DP-MIG) was used to fabricate single-pass multilayer 2319 aluminum alloy. The results showed that, compared with component without B4C, the addition of which can effectively reduce grain size (from 43 μm 25 μm) tissue in deposited layer area improve its mechanical properties 231 MPa 286 MPa). Meanwhile, are...

10.3390/ma16010436 article EN Materials 2023-01-03

The formation mechanism and wear behavior of a gradient nanostructured (GNS) Inconel 625 alloy were investigated using SEM, TEM ball-on-disc sliding tester. results show that surface mechanical grinding treatment (SMGT) induced an approximately 800 μm-deep microstructure, consisting nano-grained, nano-laminated, nano-twined, severely deformed layers, which resulted in reduced micro-hardness from 6.95 GPa (topmost surface) to 2.77 (coarse-grained matrix). nano-grained layer the high-density...

10.1016/s1003-6326(22)65918-1 article EN Transactions of Nonferrous Metals Society of China 2022-06-01

MoS2, a transition metal dichalcogenide (TMDC) material, possesses great potential in biomedical applications such as chemical/biological sensing, drug/gene delivery, bioimaging, phototherapy, and so on. Particularly, monolayer MoS2 has more extensive due to its fantastic physical chemical properties ultra-high surface area, easy modified high biodegradability. It is of significance prepare advanced with enhanced energy exchange efficiency (EEE) for development MoS2-based nanodevices...

10.3389/fchem.2020.00741 article EN cc-by Frontiers in Chemistry 2020-10-06

Graphene is the first separated 2-dimensional material which has extremely high carrier mobility. The mobility puts forward stricter requirement on contact resistance of graphene devices. In this paper, treated by oxygen plasma with varied time to form different type between and metal, especially edge enhances graphene/metal bond strength improves resistance. To investigate effect thermal annealing resistance, devices treatment were annealed rapid annealing. With optimized treatment, average...

10.1149/2.0251802jss article EN ECS Journal of Solid State Science and Technology 2018-01-01
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