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| 1 | Influence of carbon on the giant magnetocaloric effect of LaFe_11.7Si_1.3显示文摘The influences of carbon on phase formation, Curie temperature, and magnetic entropy change of the NaZn13-type LaFe11.7Si1.3 were investigated. Seven carbon-containing alloys, LaFe11.7Si1.3Cx with x = 0, 0.03, 0.06, 0.10, 0.20, 0.30, and 0.50, respectively, were prepared for this investigation. Experimental results show that addition of a small amount of carbon in LaFe11.7Si1.3 is favorable for the formation of the NaZn13-type structure of LaFe11.7Si1.3Cx. The lattice constant increases with C addition and x increases in the alloy because of the introduction of C as interstitial atoms. The Cu- rie temperature of LaFe11.7Si1.3Cx increases from 194 K to 225 K as x increases from 0 to 0.5. Large magnetic entropy changes were observed in these carbon-containing alloys LaFe11.7Si1.3Cx because of their first-order structural/magnetic transition. The maximum magnetic entropy change of 27.5 J?kg?1?K?1 at 202 K for the 0-1.56 T magnetic field change was observed in the alloy with x = 0.06. The large magnetic-entropy changes corresponding to low magnetic field change, and the low cost of the material of LaFe11.7Si1.3Cx makes it a promising candidate to be used as magnetic refrigerants in the cor- responding temperature range. | LI Junqin LIU Fusheng AO Weiqin ZHUANG Yinghong ZHOU Kaiwen | 2006 | Rare Metals2006，25，5： | 5 |
| 2 | Magnetecaloric effect of alloys Gd(Al1-xCox)2 显示文摘 | Deng Jianqiu Zhu Jinming Yah Jialin Zhuang Yinghong Wang Richu | 2007 | Journal of Rare Earths2007，25，： | 1 |
| 3 | X-RAY POWDER DIFFRACTION STUDY FOR RE COMPOUND GdNiSn显示文摘The compound GdNiSn has been studied by X-ray powder diffraction technique.The crystal structure and the X-ray diffraction data for this compound at room temperature are reported.The compound GdNiSn is orthorhombic with lattice parameters a=7.2044(1)A,b=7.6895(6)A,c=4.4772(4)A,space group Pna2_(1) and 4 formula units of GdNiSn in unit cell.The Smith and Snyder figure of index F_(30) for this compound is 35(0.015,59). | Zeng Lingmin Zhuang Yinghong Li Junqin Zhang Liping Hao Jianmin | 1996 | Transactions of Nonferrous Metals Society of China1996，6，1： | 1 |
| 4 | CRYSTAL STRUCTURE AND X-RAY POWDER DIFFRACTION DATA FOR RE COMPOUND HoNiSb显示文摘CRYSTALSTRUCTUREANDX-RAYPOWDERDIFFRACTIONDATAFORRECOMPOUNDHoNiSb￥Zeng,Lingmin;Li,Jungqin;Zhang,Liping;Zhuang,Yinghong;Hao,Jia... | Zeng, Lingmin Li, Jungqin Zhang, Liping Zhuang, Yinghong Hao, Jianmin (Institute of Materials Science, Guangxi University, Nanning 530004)(Tianjin Electronic Materzals Research Institute) | 1995 | 中国有色金属学会会刊:英文版1995，5，3： | 1 |
| 5 | Crystal structural refinement for NdAlSi显示文摘The compound NdAlSi was studied using X-ray powder diffraction technique and refined by the Rietveld method. The compound NdAlSi has tetragonal α-ThSi2-type structure, space group I41/amd (No.141), Z = 4, and the lattice parameters a = 0.41991(1) nm, c = 1.44916(3) nm. The Smith and Snyder figure of merit FN is F30 = 103.1(36). The R-factors of Rietveld refinement are Rp = 0.113 and Rwp = 0.148, respectively. The X-ray powder diffraction data is pre-sented in this article. | HE Wei ZHANG Jiliang ZENG Lingmin ZHUANG Yinghong | 2006 | Rare Metals2006，25，4： | 1 |
| 6 | Influence of Sn substitution for Co in RCo_2 (R= Gd,Tb,Dy) alloys on the structure and magnetocaloric effect显示文摘The phases and the magnetocaloric effect in the alloys R(Co1-xSnx)2 with x=0, 0.025, 0.050, 0.075, and 0.100 were investigated by X-ray diffraction analysis and magnetization measurement. The substitution of Sn in RCo2 is limited. The cubic MgCu2-type structure for the alloys of RCo2 was confirmed by X-ray powder diffraction and the remaining alloys mainly consisted of the RCo2 phase, along with some RCo3 and R5Sn3 impurity phases. The impurity phases increase with the increase of Sn content. The Tc of the alloys is not very sensitive to the Sn substitution for Dy(Co1-xSnx)2 and Tb(Co1-xSnx)2, whereas in Gd(Co1-xSnx)2, the Curie temperatures significantly increase. The maximum magnetic entropy changes in the alloys Dy(Co1-xSnx)2 (x=0,0.025, 0.050, 0.075) are 5.78, 5.43, 3.88, and 2.98 J·kg-1·K-1, respectively, and those in the Tb(Co1-xSnx)2 (x =0,0.025) are 3.44, and 2.29 J·kg-1·K-1 respectively in the applied field change of 0-2.0 T. | ZHUANG Yinghong DENG Jianqiu LI Junqin ZHAN Yongzhong ZHU Qiming ZHOU Kaiwen | 2007 | Rare Metals2007，26，2： | 1 |
| 7 | Effect of gallium doping on the magnetocaloric effect of LaFe_(11.2)Co_(0.7)Si_(1.1)显示文摘The lattice parameter and magnetocaloric properties of three samples of LaFe11.2Co0.7Si1.1-xGax with x = 0, 0.03 and 0.05 have been investi-gated by X-ray powder diffraction and magnetization measurements. The lattice parameter increases slightly and the Curie temperature in-creases somewhat with increasing gallium content. However, a small amount of Ga doping into the sample decreases the magnetic entropy change of the sample. All the samples remain in the first-order magnetic phase transition. The most striking effect of the Ga doping is that the cooling capacity in the samples increases significantly. The maximum magnetic entropy change, -△SM, max, and the cooling capacity of the sample LaFe11.2Co0.7Si1.07Ga0.03 are 11.9 J·kg-1·K-1 and 254.8 J·kg-1, respectively. | DENG Jianqiu CHEN Xiang ZHUANG Yinghong | 2008 | Rare Metals2008，27，4： | 1 |
| 8 | Magnetocaloric effect of (Gd_(1-x)Nd_x)Co_2 alloys in low magnetic field显示文摘The phases and magnetocaloric effect in the alloys (Gd1-xNdx)Co2 with x = 0, 0.1, 0.2, 0.3, and 0.4 were investigated by X-ray diffraction analysis and magnetization measurement. The samples are single phase with a cubic MgCu2-type structure. The Tc decreases obviously with increasing Nd content from 404 K of the alloy with x = 0 to 272 K of the alloy with x = 0.4; for x = 0.3, the Tc is 296 K, which is near room temperature. In the samples (Gd1-xNdx)Co2 with x = 0.0, 0.1, 0.2, 0.3, and 0.4, the maximum magnetic entropy change is 1.471, 1.228, 1.280, 1.381 and 1.610 J·kg-1·K-1, respectively, in the applied field range of 0-2.0 T. The results of Arrott plots confirmed that the transition type were second order magnetic transition for x = 0, 0.3, and 0.4. | CHEN Xiang ZHUANG Yinghong YAN Jialin ZHOU Kaiwen LI Kefeng | 2008 | Rare Metals2008，27，4： | 1 |
| 9 | Intermetallics and phase transformations of the Zr-1.0Sn-0.3Nb-0.3Fe-0.1Cr alloy显示文摘Intermetallics and phase transformations of the zirconium-based alloy, Zr-1.0Sn-0.3Nb-0.3Fe-0.1Cr, were investigated by conventional X-ray diffraction (XRD), differential scanning calorimetry (DSC), and dilation measurement. Three types of precipitates, namely, (ZrNb)2Fe, Zr(CrFe)2, and Zr3Fe, were detected by XRD. The cubic Ti2Ni-type (ZrNb)2Fe was found to be the main precipitate in the alloy, and it was proposed to dissolve at 861°C, whereas Zr3Fe dissolved at 780°C and Zr(CrFe)2 at 814°C. No precipitates were observed at a temperature higher than 900°C. The transformation-start temperature of α-Zr →β-Zr was reconfirmed to be 780°C, and the end temperature of α-Zr →β-Zr was determined to be 955°C. The dilation result also revealed that the martensitic transformation-start temperature, Ms, and the finish temperature, Mf, of this alloy were 741°C and 645°C, respectively. | LIANG Jianlie TANG Yiyuan NONG Liangqin YAN Jialin ZHUANG Yinghong | 2008 | Rare Metals2008，27，5： | 1 |
| 10 | X-RAY RIETVELD STRUCTURE REFINEMENT OF ErNiSb显示文摘XRAYRIETVELDSTRUCTUREREFINEMENTOFErNiSb①ZengLingmin,YanJialin,OuXiangli,HeWeiandZhuangYinghongInstituteofMaterialsScience,G... | Zeng Lingmin, Yan Jialin, Ou Xiangli, He Wei* and Zhuang YinghongInstitute of Materials Science, Guangxi University, Nanning 530004, P. R. China* Center for Fundamental Physics,University of Science and Technology of China, Hefei 230026, P. | 1998 | 中国有色金属学会会刊:英文版1998，8，1： | 0 |
| 11 | Investigation on the 773 K isothermal section of La-Fe-Sn ternary systems by X-ray powder diffraction显示文摘The 773 K isothermal section of the La-Fe-Sn ternary system was investigated and constructed by X-ray powder diffraction(XRD).The existence of two reported ternary intermetallic compounds,La6Fe13Sn and La3FeSn6,is confirmed in this work.Compared with other R-Fe-Sn phase diagrams(R = Pr and Sm),the binary alloys Fe3Sn and Fe5Sn3 are not present.The compound Fe3Sn2 was observed from the XRD pattern of Fe3Sn2 samples,but it is not an equilibrium phase at 773 K and decomposes into Fe and FeSn phases completely for a longer heat treated time.Up to now,the crystal structure data of La2Sn3 has not been reported,so the X-ray pattern of La2Sn3 was only estimated.The phase relationship for this compound was drawn by a dotted line. | CHEN Xiang ZHUANG Yinghong CHEN Yungui | 2010 | Rare Metals2010，29，6： | 0 |
| 12 | Magnetocaloric effect of (Gd_(1-x)Ce_x)Co_2 compounds in low magnetic fields显示文摘The phases in the compounds (Gd1-xCex)Co2 with x = 0, 0.1, 0.2, 0.3, 0.4, and 0.5 were investigated by X-ray diffraction, and the magnetocaloric effect for x = 0-0.4 was studied by magnetization measurements. The samples are almost single phase with a cubic MgCu2-type structure for x = 0-0.5. The magnetization decreases with an increase in Ce content. There is almost no magnetic transition for x = 0.5 at 100-350 K. The Curie temperature (Tc) of the (Gd1-xCex)Co2 compounds with x from 0.1 to 0.4 are 350, 344, 340, and 338 K respectively. The maximum magnetic entropy change is 2.34 J·kg-1·K-1 when x = 0.3. The results of Arrott plots show that the magnetic phase transition is second-order magnetic phase transition in these compounds. | CHEN Xiang ZHUANG Yinghong FANG Fei YAN Jialin | 2009 | Rare Metals2009，28，5： | 0 |
| 13 | Phase Relationship in the Al-rich(Al+0.15at %V)-Mg-Zn System显示文摘Isothermal sections at room temperature and 450℃ for Al-rich(Al+0.15at%V)-Mg-Zn system have been determined bymeans of X-ray diffraction,microscopic observation and DTA methods.Comparing with Al-Mg-Zn system the α-phase regionof in isothermal sections room at temperature and 450℃ for the system with 0.15at%V is slightly narrowed and expandedrespectively.The solubilitiy limits of Zn and Mg in α-Al have been found to be 3.3at%(7.6wt%)and 5.5at%(5.0wt%)respectively at room temperature,and to be 6.0at%(13.4wt%)and 11.0at%(10.0wt%)at 450℃.The τ phase in this system is aternary intermetallic compound,which undergoes an allotropic transformation at about 427℃. | Tang, Junqi Li, Dexuan Lin, Weibo Zhuang, Yinghong | 1989 | Rare Metals1989，9，3： | 0 |
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