scholarly journals X-ray CT observation of shear deformation generated by friction powder sintering process for fabricating porous aluminum

2014 ◽  
Vol 64 (11) ◽  
pp. 593-597
Author(s):  
Yoshihiko Hangai ◽  
Ayano Ishihara ◽  
Nobuhiro Yoshikawa
2016 ◽  
Vol 80 (6) ◽  
pp. 390-393 ◽  
Author(s):  
Yoshihiko Hangai ◽  
Ayano Ishihara ◽  
Takao Utsunomiya ◽  
Osamu Kuwazuru ◽  
Nobuhiro Yoshikawa

2014 ◽  
Vol 64 (12) ◽  
pp. 628-632 ◽  
Author(s):  
Yoshihiko Hangai ◽  
Ayano Ishihara ◽  
Osamu Kuwazuru ◽  
Nobuhiro Yoshikawa

2014 ◽  
Vol 2014 (0) ◽  
pp. _J0320103--_J0320103-
Author(s):  
Ayano ISHIHARA ◽  
Yoshihiko HANGAI ◽  
Kousuke ZUSHIDA ◽  
Osamu KUWAZURU ◽  
Nobuhiro YOSHIKAWA ◽  
...  

2015 ◽  
Vol 2015 (0) ◽  
pp. _J0330301--_J0330301-
Author(s):  
Tomoaki MORITA ◽  
Yoshihiko HANGAI ◽  
Osamu KUWAZURU ◽  
Nobuhiro YOSHIKAWA

2015 ◽  
Vol 81 (824) ◽  
pp. 14-00600-14-00600 ◽  
Author(s):  
Yoshihiko HANGAI ◽  
Kousuke ZUSHIDA ◽  
Osamu KUWAZURU ◽  
Nobuhiro YOSHIKAWA

2014 ◽  
Vol 64 (11) ◽  
pp. 582-586 ◽  
Author(s):  
Kousuke Zushida ◽  
Yoshihiko Hangai ◽  
Osamu Kuwazuru ◽  
Nobuhiro Yoshikawa

2013 ◽  
Vol 281 ◽  
pp. 475-479
Author(s):  
Bo Wang ◽  
Quan Xi Cao ◽  
Guang Xu ◽  
Sen Tian

1.0at% Nd:YAG polycrystalline ceramics were sintered at 1420°C, 1500°C, 1600°C and 1730°C respectively by different heating rate (1°C/min and 5°C/min). The crystal structures were indexed by X-ray diffractometer (XRD). The microstructure and the grain size of the samples were characterized by scanning electron microscope (SEM). The optical transmittance spectra of the samples were measured using V-570 UV spectrophotometer. The sintering process of Nd:YAG ceramics and the effect of heating rate on the microstructure of samples have been investigated.


2016 ◽  
Vol 881 ◽  
pp. 307-312
Author(s):  
Luis Antonio C. Ybarra ◽  
Afonso Chimanski ◽  
Sergio Gama ◽  
Ricardo A.G. da Silva ◽  
Izabel Fernanda Machado ◽  
...  

Tungsten carbide (WC) based composites are usually produced with cobalt, but this binder has the inconvenience of shortage, unstable price and potential carcinogenicity. The objective of this study was to develop WC composite with intermetallic Fe3Al matrix. Powders of WC, iron and aluminum, with composition WC-10 wt% Fe3Al, and 0.5 wt% zinc stearate were milled in a vibration mill for 6 h and sintered in a SPS (spark plasma sintering) furnace at 1150 °C for 8 min under pressure of 30 MPa. Measured density and microstructure analysis showed that the composite had significant densification during the (low-temperature, short time) sintering, and X-ray diffraction analysis showed the formation of intermetallic Fe3Al. Analysis by Vickers indentation resulted in hardness of 11.2 GPa and fracture toughness of 24.6 MPa.m1/2, showing the feasibility of producing dense WC-Fe3Al composite with high mechanical properties using the SPS technique.


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