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Effect of Different Hot-Pressing Pressure and Temperature on the Performance of Titanium Mesh-Based MEA for DMFC

open access: yesMembranes, 2022
The hot-pressing process of the membrane electrode assembly (MEA) is one of the research hotspots in the field of the fuel cell. To obtain suitable titanium mesh-based MEA hot pressing process parameters, titanium mesh was used as electrode substrate ...
Xingxing Wang   +6 more
doaj   +2 more sources

Effects of Hot Pressing Temperature and Pressure on Dielectric Properties of Aramid Insulating Paper

open access: yesEnergies, 2022
The hot pressing parameters and fiber ratio have an important influence on the dielectric properties of aramid insulating paper. In order to deeply explore its influence and the mechanism behind it, aramid insulating papers were made with different hot ...
Yuanxin Yao   +5 more
doaj   +2 more sources

The effect of cold and hot pressing on mechanical properties and tribological behavior of Mg-Al2O3 nanocomposites

open access: yesMaterials Research Express, 2020
In this research, pure powder of Mg was mixed with 0, 1.5, 3, 5%vol. of Aluminium oxide in a planetary mill. Next, the powder mixture was poured in a mold and pressed in two diverse conditions of (1) hot pressing at 600 MPa pressure and 450 °C ...
Kaveh Rahmani   +2 more
doaj   +2 more sources

Enhancing the Quality of the Characteristic Transmittance Curve in the Infrared Region of Range 2.5–7 µm of the Optical Magnesium Fluoride (MgF2) Ceramic Using the Hot-Pressing Technique in a Vacuum Environment

open access: yesAdvances in Materials Science and Engineering, 2020
This paper carries out an experimental study to enhance the quality of the characteristic transmittance curve in the infrared range of 2.5–7 µm of the optical magnesium fluoride (MgF2) ceramic.
Nguyen Tuan Hieu   +4 more
doaj   +2 more sources

Impact of Hot Pressing Temperature on Medium Density Fiberboard (MDF) Performance

open access: yesAdvances in Materials Science and Engineering, 2017
Hot pressing temperature is determined according to the performance of boards, type of glue, and production efficiency of hot press. During hot pressing, the thermal energy has enhanced the plasticity of the fiber and created conditions for the ...
W. Gul, A. Khan, A. Shakoor
doaj   +2 more sources

ACTIVATED HOT PRESSING BEHAVIOR OF WC NANOPOWDERS [PDF]

open access: yesFiabilitate şi Durabilitate, 2010
The questions of consolidation of nanopowders concerning hot compaction by pressing activated by electric current action are considered. Mechanisms of grain boundary creep-sliding which are sequentially prevalent in a forming of compacted structures ...
Edwin GEVORKYAN, Yury GUTSALENKO
doaj   +2 more sources

Study on the Influence of the New Type of Powder Metallurgy Ti-Al-Nb Alloy Hot Press Sintering Process on the Microstructure [PDF]

open access: yesE3S Web of Conferences, 2021
Based on the hot-pressing sintering process, the kinetics of hot-pressing sintering crystal grain growth and the hot-pressing sintering densification kinetics, the mixing ratio of the raw material powder and the hot-pressing sintering system are designed.
Fang Shuang   +3 more
doaj   +1 more source

Effect of carbides on fracture mechanism of powder metallurgy tool steels

open access: yesFenmo yejin jishu, 2023
The microstructure and tensile fracture behavior of M390 powder metallurgy tool steels were investigated by scanning electron microscopy, X-ray diffraction analysis, and in-situ tensile test, and the effect of the carbides on the fracture process of the ...
SHEN Yi   +5 more
doaj   +1 more source

Hot pressing process of PBO fiber wet-laid nonwoven materials

open access: yesXi'an Gongcheng Daxue xuebao, 2023
In order to improve the mechanical properties of PBO fiber wet-laid forming mesh, the hot pressing process was used to strengthen it, and the Box-Behnken response surface method was used to establish a response surface model by taking three factors of ...
LI Zhigang, ZHANG Xing, ZHU Jiahui
doaj   +1 more source

Application research progress of hot isostatic pressing technology in nickel-based single crystal superalloy [PDF]

open access: yesE3S Web of Conferences, 2020
Since the introduction of hot isostatic pressing (HIP) technology, it has been widely used in powder metallurgy forming and improving the densification of castings. With the increasing demand for the performance of nickel-based single crystal superalloy,
Wang Jun, Jiang Zhaojun
doaj   +1 more source

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