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Journal of Rare Earths 1999年第2期17卷 40-42页

作者： Liu, Ying Tu, Mingjing Sichuan univ Chengdu China

The effect of particle size and distribution of rapidly quenching NdFeB magnetic powder on the magnetic properties of polymerbonded NdFeB permanent magnet was studied. The results show that the particle size and the distribution of rapidly quenching NdFeB magnetic powder have significant effects on the magnetic properties of polymerbonded NdFeB permanent magnet. As long as the size and the distribution of rapidly quenching NdFeB powder are within the right range, high magnetic properties of polymerbonded NdFeB permanent magnet can be obtained. This is mainly because the rapidly quenching NdFeB magnetic powder has high hardness and is scaleshaped. The larger the size of rapidly quenching NdFeB particles is, the more difficult it is to obtain high density of bonded NdFeB magnet. However the structure will be destroyed if the size is too small. It results in the deterioration of magnetic properties. The mechanism is also discussed.

关键词： Rare earths NdFeB powder Particle size Particle distribution Magnetic properties

THE　RELATIONSHIPS　BETWEEN　GLOBAL　AND　EVERY　LAYER　DEFORMATION　TEXTURES　OF　70－30　BRASS　ROLLED　BY　CROSS　SHEAR　ROLLING

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中国有色金属学会会刊：英文版 1995年第2期5卷 98-100页

作者： Zhao, Xiang Zuo, Liang Zhao, Hong Liang, Zhide(Deptartment of Material Science and Engineering,Northeastern university, Shenyang 110006) Northeastern univ Shenyang China

ＴＨＥＲＥＬＡＴＩＯＮＳＨＩＰＳＢＥＴＷＥＥＮＧＬＯＢＡＬＡＮＤＥＶＥＲＹＬＡＹＥＲＤＥＦＯＲＭＡＴＩＯＮＴＥＸＴＵＲＥＳＯＦ７０－３０ＢＲＡＳＳＲＯＬＬＥＤＢＹＣＲＯＳＳＳＨＥＡＲＲＯＬＬＩＮＧ￥Ｚｈａｏ，Ｘｉａｎ... 详细信息

ＴＨＥＲＥＬＡＴＩＯＮＳＨＩＰＳＢＥＴＷＥＥＮＧＬＯＢＡＬＡＮＤＥＶＥＲＹＬＡＹＥＲＤＥＦＯＲＭＡＴＩＯＮＴＥＸＴＵＲＥＳＯＦ７０－３０ＢＲＡＳＳＲＯＬＬＥＤＢＹＣＲＯＳＳＳＨＥＡＲＲＯＬＬＩＮＧ￥Ｚｈａｏ，Ｘｉａｎｇ；Ｚｕｏ，Ｌｉａｎｇ；Ｚｈａｏ，...

关键词： cross shear rolling macroscopic statistical unsymmetry texture three dimensional orientation distribution function (ODF)

ROOM TEMPERATURE CLEANER FLOTATION TECHNIQUE FOR SCHEELITE ROUGH CONCENTRATE

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中国有色金属学会会刊：英文版 1997年第2期7卷 21-25页

作者： Tian, Xueda Zhang, Xiaoyun Li, Longfeng Wang, Dianzuo Xiangtan univ Xiangtan China

ＲＯＯＭＴＥＭＰＥＲＡＴＵＲＥＣＬＥＡＮＥＲＦＬＯＴＡＴＩＯＮＴＥＣＨＮＩＱＵＥＦＯＲＳＣＨＥＥＬＩＴＥＲＯＵＧＨＣＯＮＣＥＮＴＲＡＴＥ①ＴｉａｎＸｕｅｄａＣｈｅｍｉｓｔｒｙ＆ＣｈｅｍｉｃａｌＥｎｇｉｎｅｒｉｎｇＣｏ... 详细信息

ＲＯＯＭＴＥＭＰＥＲＡＴＵＲＥＣＬＥＡＮＥＲＦＬＯＴＡＴＩＯＮＴＥＣＨＮＩＱＵＥＦＯＲＳＣＨＥＥＬＩＴＥＲＯＵＧＨＣＯＮＣＥＮＴＲＡＴＥ①ＴｉａｎＸｕｅｄａＣｈｅｍｉｓｔｒｙ＆ＣｈｅｍｉｃａｌＥｎｇｉｎｅｒｉｎｇＣｏｌｅｇｅ，ＸｉａｎｇｔａｎＵｎｉｖ...

关键词： scheelite flotation technique depressant

INFLUENCE OF NITROGEN ON THERMAL WARPAGE IN CZOCHRALSKI SILICON WAFERS

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中国有色金属学会会刊：英文版 1999年第2期9卷 148-150页

作者： Lu, Huanming Zhejiang univ Hangzhou China

１ＩＮＴＲＯＤＵＣＴＩＯＮＦｏｒｍａｎｙｙｅａｒｓ，ｗａｒｐａｇｅｏｆｓｉｌｉｃｏｎｗａｆｅｒｓｈａｓｂｅｅｎｃｏｎｃｅｒｎｅｄｉｎｖｅｒｙｌａｒｇｅｓｃａｌｅｉｎｔｅｇｒａｔｅｄｃｉｒｃｕｉｔ（ＶＬＳＩ）ｍａｎｕ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＦｏｒｍａｎｙｙｅａｒｓ，ｗａｒｐａｇｅｏｆｓｉｌｉｃｏｎｗａｆｅｒｓｈａｓｂｅｅｎｃｏｎｃｅｒｎｅｄｉｎｖｅｒｙｌａｒｇｅｓｃａｌｅｉｎｔｅｇｒａｔｅｄｃｉｒｃｕｉｔ（ＶＬＳＩ）ｍａｎｕｆａｃｔｕｒｉｎｇ［１－４］．Ｕｓ...

关键词： nitrogenthermal warpagemechanical strengthsilicon wafers

Calculation of the Quasiternary Systems:Si_3N_4-Y_2O_3-SiO_2,Y_2O_3-SiO_2-BeO and Y_2O_3-Al_2O_3-BeO

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Journal of Materials Science & Technology 1995年第4期11卷 276-280页

作者： Lin LI(Dept. Materials Science and Engineering, Shanghai university, Shanghai, 200072, China)Qing AO (Dept. of Materials Engineering, Shandong Polytechnic university, Jinan, 250014, China)O. Van Der Biest P Wollants and L.Delaey (Dept. MTM, Katholieke Un Shanghai univ Shanghai China

Based on the thermodynamic model of Kaufman for the calculation of quasibinary and quasiternary system, numerical method for the calculation of stable equilibrium is developed and thermodynamic data of undefined phases are discussed in this work for several ceramic *** calculated isothermal sections in Si3N4-Y2O3-SiO2 system meet well with other previous calculated phase diagrams and experimental results. The diagrams in Y2O3-SiO2-BeO and Y2O3-Al2O3-BeO systems are calculated for the approach of prediction.

关键词： SiO AO Calculation of the Quasiternary Systems Al