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| 1 | Improving the hard magnetic properties by intragrain pinning for Ta doped nanocrystalline Ce-Fe-B alloys显示文摘To develop Ce based permanent magnets with high performance/cost ratio, Ta doping is was employed to enhance the magnetic performance of Ce-Fe-B alloys. For melt spun Cei7Fe78-xTaxB6 (x = 0-1) alloys, the coercivity Hc increases from 439 to 553 kA/m with increasing x value from 0 to 0.75. Microstructure characterizations indicate that Ta doping is helpful for grain refinement. A second phase of TaB2 is observed in Ce17Fe77.25Tao.75B6 alloy, which acts as the pinning center of the magnetic domains, resulting in the change of coercivity mechanism from nucleation type to nucleation +pinning type. The micromagnetic simulation confirms that non-magnetic particles within hard magnetic phase can increase the demagnetization field around them and it is crucial for preventing the further magnetization reverse by pinning effect. Take the advantage of Ta doping for enhancing the coercivity, Ce content of Ce-Fe-B alloy can be further cut down to increase the remanence Jr due to the reduced volume fraction of CeFe2 phase and increased Fe/Ce ratio. As a result, a good combination of magnetic properties with Hc = 514 kA/m, Jr = 0.49 T, and the maximum energy product (BH)max = 36 kJ/m^3 have been obtained in Ce15Fe79.25Tao.75B6 alloy. It is expected that the present work can serve as a useful reference for designing new permanent magnetic materials with low-cost. | J.S.Zhang W. Li X.F. Liao H.Y. Yu L.Z. Zhao H.X. Zeng D.R. Peng Z.W. Liu | 2019 | Journal of Materials Science & Technology2019，35，9： | 2 |
| 2 | Advanced Reproductive Age and Fertility显示文摘 | Kimberly Liu Allison Case Anthony P. Cheung Sony Sierra Saleh AlAsiri Belina Carranza-Mamane Allison Case Cathie Dwyer James Graham Jon Havelock Robert Hemmings Francis Lee Kimberly Liu Ward Murdock Vyta Senikas Tannys D.R. Vause Benjamin Chee-Man Wong | 2011 | International Journal of Gynecology and Obstetrics2011，，1： | 1 |
| 3 | Measurement and computations for temperature dependences of self-broadened carbon dioxide transitions in the 30012←00001 and 30013←00001 bands显示文摘 | A. Predoi-Cross W. Liu R. Murphy C. Povey R.R. Gamache A.L. Laraia A.R.W. McKellar D.R. Hurtmans V. Malathy Devi | 2010 | Journal of Quantitative Spectroscopy and Radiative Transfer2010，，9： | 1 |
| 4 | 查看详情显示文摘 | Du N Zhang H Chen B.D Wu J.B. Ma X.Y. Liu Z.H. Zhang Y.Q. Yang D.R. Huang X.H. Tu J P | | 0，，： | 1 |
| 5 | Modification of membrane surface for anti-biofouling performance: Effect of anti-adhesion and anti-bacteria approaches显示文摘 | C.X. Liu D.R. Zhang Yi He X.S. Zhao Renbi Bai | 2009 | Journal of Membrane Science2009，，1： | 1 |
| 6 | Aluminum-doped lithium nickel cobalt oxide electrodes for high-power lithium-ion batteries显示文摘 | C.H. Chen J. Liu M.E. Stoll G. Henriksen D.R. Vissers K. Amine | 2003 | Journal of Power Sources2003，，2： | 1 |
| 7 | Outcomes of Liver Transplantation for Nonalcoholic Steatohepatitis: A Systematic Review and Meta-analysis显示文摘 | Xiaofei Wang Jingdong Li D.R. Riaz Gang Shi Chongqing Liu Yi Dai | 2014 | Clinical Gastroenterology and Hepatology2014，，3： | 1 |
| 8 | MODELING OF 'BANDING' MICROSTRUCTURE FORMATION IN CENTRIFUGALLY SOLIDIFIED Ti-6Al-4V ALLOY显示文摘Numerical investigations of the 'banding' microstructure formation during solidification of Ti-6Al-4V alloy in the centrifugal casting are conducted using a multi-scale model, which combines the finite difference method (FDM) at the macroscale with a cellular automaton (CA) model at the microscale. The macro model is used to simu- late the fluid flow and heat transfer throughout the casting. The micro model is used to predict the nucleation and growth of microstructures. With the proposed model, numerical simulations are performed to study the influences of the nucleation density, mould rotation speed, and casting size upon the 'banding' microstructure formation. It is noted that changing the nucleation density has a minor effect on the microstructure formation. The rotation speed promotes the formation of 'banding' microstructure, which is more noticeable for larger size castings. The major mechanism responsible for this 'banding' phenomenon is the spatial variation in cooling rates created by centrifugal force. | D.R. Liu E:J. Guo L.P. Wang | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，6： | 0 |
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