scholarly journals Preparation and characterization of porous NiTi alloys synthesized by microwave sintering using Mg space holder

2021 ◽  
Vol 31 (2) ◽  
pp. 485-498
Author(s):  
Tao LAI ◽  
Ji-lin XU ◽  
Qi-fei XIAO ◽  
Yun-xiang TONG ◽  
Jun HUANG ◽  
...  
Keyword(s):  
Microwave Sintering ◽  
Space Holder ◽  
Niti Alloys ◽  
Porous Niti

Effect of NH4HCO3 Contents on the Microstructure of the Microwave Sintered Porous NiTi Alloys

2014 ◽  
Vol 496-500 ◽  
pp. 264-267
Author(s):  
Ji Lin Xu ◽  
Xiao Fei Jin ◽  
Jun Ming Luo ◽  
Ai Hui Liu
Keyword(s):  
Surface Roughness ◽  
Pore Size ◽  
Optical Microscopy ◽  
Microwave Sintering ◽  
X Ray Diffraction ◽  
X Ray ◽  
Niti Alloys ◽  
Porous Niti ◽  
Diffraction Peaks

In this paper, the porous NiTi alloys were prepared by microwave sintering, and the effects of NH4HCO3contents on the microstructure of the porous NiTi alloys were studied. The microstructure of the porous NiTi alloys was investigated by optical microscopy, Archimedes drainage method, surface roughmeter and X-ray diffraction. The results showed that the porous NiTi alloys were mainly composed of NiTi, Ni3Ti, Ti2Ni and Ni, and the diffraction peaks of the non-equiatomic phases (Ni3Ti, Ti2Ni and Ni) increased with increasing the NH4HCO3contents. At the same time, the porosity, pore size and surface roughness of the porous NiTi alloys increased with the increase of the NH4HCO3contents.

Preparation and characterization of porous titanium using space-holder technique

Rare Metals ◽  
2009 ◽  
Vol 28 (4) ◽  
pp. 338-342 ◽  
Author(s):  
Wenjuan Niu ◽  
Chenguang Bai ◽  
Guibao Qiu ◽  
Qiang Wang ◽  
Liangying Wen ◽  
...  
Keyword(s):  
Porous Titanium ◽  
Space Holder

Study on Effect of Sintering Temperature on Microstructure and Compressive Property of Porous NiTi Alloys

2011 ◽  
Vol 299-300 ◽  
pp. 480-483 ◽  
Author(s):  
Jing Yuan Yu ◽  
Qiang Li
Keyword(s):  
Compressive Strength ◽  
Phase Composition ◽  
Sintering Temperature ◽  
Testing Machine ◽  
Compressive Property ◽  
Powder Metallurgy Method ◽  
Niti Alloys ◽  
Porous Niti ◽  
Universal Testing ◽  
Niti Phase

Porous NiTi alloys were prepared by powder metallurgy method using NH4HCO3as space-holder. The effect of sintering temperature on pore characteristic, phase composition and compressive property of porous NiTi alloys was studied by XRD, SEM, EDS and a universal testing machine. The results show with the increase of sintering temperature the porosity of porous NiTi alloys first increases and then decreases, but the content of NiTi phase, compressive strength and modulous of sintered products continuously increase. When sintered at 980°C for 2h, the porous NiTi alloys have higher porosity of 53.6%, better compressive strength of 173.7MPa and elastic modulous of 4.2GPa. The phases of sinter products are mainly composed by TiNi, Ti2Ni, and TiNi3phases.

Investigation and characterization of Pb(Zr0.52Ti0.48)O3 nanocrystalline ferroelectric ceramics: By conventional and microwave sintering methods

2011 ◽  
Vol 126 (1-2) ◽  
pp. 295-300 ◽  
Author(s):  
M. Venkata Ramana ◽  
S. Roopas Kiran ◽  
N. Ramamanohar Reddy ◽  
K.V. Siva Kumar ◽  
V.R.K. Murthy ◽  
...  
Keyword(s):  
Microwave Sintering ◽  
Ferroelectric Ceramics
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