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| 1 | Anisotropic NdFeB Magnet Fabricated by Single Stroke Hot Deformation显示文摘The general hot deformation process consists of two steps, hot pressing and die-upsetting in order to obtain the anisotropic NdFeB magnet. This is the first report that the high anisotropy NdFeB magnets can be fabricated by single stroke hot deforming the isotropic magnet. The magnetic properties of those materials are: coercivity _iH_c -11 kOe, remanence B_r-12 kG, and the maximum energy product (BH)_max-28 MG.Oe. | Y.Li (Chungnam National University, Taejon, Korea) Y.B.Kim (Korea Research Institute of Standards and Science, Taejon, Korea) M.J.Kim, M.S.Song, J.H.Yang, T.K.Kim and C.O.Kim (Chungnam National University, Taejon, Korea) | 2000 | Journal of Materials Science & Technology2000，16，2： | 7 |
| 2 | EXPERIMENTAL TESTING OF DRAW-BEAD RESTRAINING FORCE IN SHEET METAL FORMING显示文摘Due to complexities of draw-bead restraining force calculated according to theory anddepending on sheet metal forming properties experiment testing system, a simplifiedmethod to calculate draw-bead restraining force is put forward by experimental methodin cup-shaped drawing process. The experimental results were compared with numer-ical results and proved agreement. It shows the method is effective. | J.H.Yang J.Chen D.N.He X.Y.Ruan | 2003 | Acta Metallurgica Sinica(English Letters)2003，16，1： | 2 |
| 3 | The effects of doping and shell thickness on the optical and magnetic properties of Mn/Cu/Fe-doped and Codoped ZnS nanowires/ZnO quantum dots/SiO2 heterostructures显示文摘 | J.Cao J.H.Yang L.L.Yang | | 0，，： | 1 |
| 4 | Effect of Applied Pressure on the Joining of Combustion Synthesized Ni_3Al Intermetallics with Al Alloy显示文摘我们集中于与 Ni-Al 金属间化合的混合物扔合金由的 ligth 重量的表面加强在原处改进非铁的扔的表面性质的燃烧反应部件。在我们的以前的工作,元素的 Ni 和艾尔粉末紧缩的绿色被 SHS (自我繁殖的高温度合成) 反应到形式 Ni3Al 金属间化合的化合物有熔融的艾尔合金并且同时的热的反应与艾尔扔结合了合金。但是象微小的裂缝和孔那样的一些缺点在反应协议被仍然是。我们因此使用了压力阻止热裂缝并且与液体艾尔合金充满毛孔由压榨扔过程。压缩艾尔合金与 Ni3Al 金属间化合的混合物结合了是 sectioned 并且由光显微镜学和扫描电子显微镜学(SEM ) 观察了。在结合的接口附近并且在反应协议形成的 intermetallics 的 stoichiometric 作文被散光谱学(版本) 和电子探查的精力识别微分析(EPMA ).Si 富人层被艾尔的顺序的团结在结合的接口附近在艾尔合金方面上形成合金。在反应 Ni3Al 协议观察的孔与液体艾尔合金被充满。从熔融的艾尔合金的 Si 粒子在反应 Ni3Al 金属间化合的协议的毛孔被检测。扔合金和 Ni3Al 金属间化合的化合物的艾尔被把压力用于液体艾尔合金很很熟加入。 | G.S.Cho J.H.Yang K.H.Choe K.W.Lee A.Ikenaga | 2008 | Journal of Materials Science & Technology2008，24，1： | 0 |
| 5 | Study of the electric field and wall voltage in a high pressure ac-PDP cell by laser induced fluorescence spectroscopy显示文摘The electric field in a surface discharge type ac-PDP cell with He or He/Xe(0.1%) mixture has been measured over a wide range of pressure (5-50 kPa) using laser induced fluorescence detection. The wall voltage was estimated from the measured electric field, The Stark manifolds of triplet atomic helium Rydberg state (2s3S) with principal quantum numbers (n=8 and 9) have been used to measure the electric field, as the lifetime of 2s^3S is longer than the single atomic helium Rydberg state (2siS) in high pressure discharge. Comparison of the Stark manifolds between the n=9 and n=8 shows that the measurement accuracy of electric field can be increased by 10%, The maximum electric field strength during discharge and the wall voltage at the end of pulse decreases with the increase of pressure, The comparison of He and He/Xe(0.1%) discharge at 13 kPa showed that He/Xe gas mixture discharge can accumulate more wall charge on MgO surface and the electric field was somewhat higher than those of pure helium discharge during pulse off period under the same discharge conditions. | 周艳 K.W.Whang J.H.Yang D.C.Jeong C.H.Ha Y.W.Choi | 2004 | Chinese Physics B2004，13，6： | 0 |
| 6 | THE IMPROVEMENT IN FRICTION AND WEAR RESISTANCE FORTa and Ta+C IMPLANTED Cr12 STEEL显示文摘Ta and C ions extracted from a MEVVA ion source were implanted into Cr12 steel, with an implantation dose of (1-5)x1017cm-2, extraction acceleration 42kV, and average ion beam flux about 20-50μA·cm-2. Rutherford backscattering spectrum (RBS) was used to measure the surface composition after Ta and Ta+C implantation. Analysis of phase formed by Ta and C implantation was carried out by X-ray diffraction analysis (XRD). Experiment results showed that the wear rate of the implanted layer dropped 40% for Ta ion implantation and by a factor of 2.7 for Ta+C dual ion implantation. Ta+C dual ion implantation was found to reduce the friction coefficient of Cr12 steel. The wear mechanisms of the implanted layer were discussed. | J.H.Yang T.H.Zhang | 1998 | Acta Metallurgica Sinica(English Letters)1998，11，2： | 0 |
| 7 | Relationship between CO_2 Sensor Voltage Response and Phase Equilibrium of Solid Electrolyte Na,K-β/β″-Al_2O_3显示文摘A type of CO2 sensor based on oxygen concentration cell was designed as following: Cell I: Pt | Au, O2,CO2|Na2CO3(Au)|NKBA(Au)|YSZ|O2, CO2|Pt or Cell Ⅱ: Pt|Au, O2, CO2|K2CO3(Au)|NKBA(Au)|YSZ|O2, CO2|Pt.(Na,K-β/β″-Al2O3 is named by NKBA). The sensor signal is consistent with the Nernstian slope within the region ofphase equilibrium for Na, K-β/β'-Al2O3 material. The relationship between CO2 sensor voltage response and phaseequilibrium of solid electrolyte Na, K-β/β-Al2O3 is discussed in this paper. | J.H.YANG H.Nafe F.Aldinger D.S.YAN | 2003 | Journal of Materials Science & Technology2003，19，5： | 0 |
| 8 | 晶圆边缘缺陷的控制策略显示文摘在晶圆边缘芯片上的系统性工艺缺陷进入到晶圆内部芯片之前,如果发现并解决这些缺陷问题,可以防止产品成品率损失并加快成品率的提升速度。 | M.F.Hsu J.H.Yang E.Yang H.Chen M.Ng M.Li C.Perry-Sullivan | 2009 | 集成电路应用2009，26，9： | 0 |
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