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Featured researches published by Junming Luo.


Materials Science and Engineering: C | 2015

Microstructure, mechanical properties and superelasticity of biomedical porous NiTi alloy prepared by microwave sintering.

J.L. Xu; L.Z. Bao; A.H. Liu; X.J. Jin; Y.X. Tong; Junming Luo; Z.C. Zhong; Y.F. Zheng

Porous NiTi alloys were prepared by microwave sintering using ammonium hydrogen carbonate (NH4HCO3) as the space holder agent to adjust the porosity in the range of 22-62%. The effects of porosities on the microstructure, hardness, compressive strength, bending strength, elastic modulus, phase transformation temperature and superelasticity of the porous NiTi alloys were investigated. The results showed that the porosities and average pore sizes of the porous NiTi alloys increased with increasing the contents of NH4HCO3. The porous NiTi alloys consisted of nearly single NiTi phase, with a very small amount of two secondary phases (Ni3Ti, NiTi2) when the porosities are lower than 50%. The amount of Ni3Ti and NiTi2 phases increased with further increasing of the porosity proportion. The porosities had few effects on the phase transformation temperatures of the porous NiTi alloys. By increasing the porosities, all of the hardness, compressive strength, elastic modulus, bending strength and superelasticity of the porous NiTi alloys decreased. However, the compressive strength and bending strength were higher or close to those of natural bone and the elastic modulus was close to the natural bone. The superelastic recovery strain of the trained porous NiTi alloys could reach between 3.1 and 4.7% at the pre-strain of 5%, even if the porosity was up to 62%. Moreover, partial shape memory effect was observed for all porosity levels under the experiment conditions. Therefore, the microwave sintered porous NiTi alloys could be a promising candidate for bone implant.


Materials Letters | 2014

Fabrication and properties of porous NiTi alloys by microwave sintering for biomedical applications

J.L. Xu; X.F. Jin; Junming Luo; Z.C. Zhong


Journal of Alloys and Compounds | 2015

Effect of pore sizes on the microstructure and properties of the biomedical porous NiTi alloys prepared by microwave sintering

J.L. Xu; L.Z. Bao; A.H. Liu; X.F. Jin; Junming Luo; Z.C. Zhong; Yufeng Zheng


Journal of Alloys and Compounds | 2013

Corrosion resistance of the titania particles enhanced acrylic resin composite coatings on sintered NdFeB permanent magnets

J.L. Xu; Z.C. Zhong; Z.X. Huang; Junming Luo


Materials Research Bulletin | 2012

Yttrium oxide transparent ceramics by low-temperature microwave sintering

Junming Luo; Z.C. Zhong; J.L. Xu


Journal of Magnetism and Magnetic Materials | 2014

Effect of titania particles on the microstructure and properties of the epoxy resin coatings on sintered NdFeB permanent magnets

J.L. Xu; Z.X. Huang; Junming Luo; Z.C. Zhong


Archive | 2012

Preparation method of particle-enhanced organic anticorrosive coating on surface of neodymium-iron-boron permanent magnet material

Z.C. Zhong; J.L. Xu; Junming Luo; S.C. Ma


Journal of Materials Science: Materials in Medicine | 2012

Effect of micro-arc oxidation surface modification on the properties of the NiTi shape memory alloy

J.L. Xu; Z.C. Zhong; D.Z. Yu; Fu Liu; Junming Luo


Materials Research Bulletin | 2014

Fabrication and characterization of GDC electrolyte/electrode integral SOFC with BaO/Ni-GDC anode

Xibao Li; Gangqin Shao; Junming Luo; Jinshan Lu; Mingshan Xue; Yuhua Hou; Liping Deng


Journal of Magnetism and Magnetic Materials | 2013

Differences of the magnetic hysteresis behaviors in the magnetostructural transformation Mn1−xVxCoGe alloys

S.C. Ma; Z.C. Zhong; D. H. Wang; H. Ke; Q. Q. Cao; Y.L. Huang; Junming Luo; J.L. Xu; Y.H. Hou; Y. W. Du

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J.L. Xu

Nanchang Hangkong University

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Z.C. Zhong

Nanchang Hangkong University

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Xibao Li

Nanchang Hangkong University

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Juntong Huang

Nanchang Hangkong University

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Zhijun Feng

Nanchang Hangkong University

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Jinshan Lu

Nanchang Hangkong University

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L.Z. Bao

Nanchang Hangkong University

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Mingshan Xue

Nanchang Hangkong University

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