THE JAPAN INSTITUTE OF METALS

PROCEEDINGS VOLUME 14

(REMXVI2000)

**Rare-Earth Magnets and
Their Applications**

Edited by

M. Homma

M. Okada

Copyright © 2000, | The Japan Institute of Metals All right reserved |

Published by | The Japan Institute of Metals Aramaki Aoba, Aoba-ku, Sendai 980-0845, Japan Tel: +81-22-223-3685, Fax: +81-22-223-6312 |

Vol. 1

Preface H. Kaneko, M. Homma and M. Okada

Karl Strnat Memorial Lecture

*Y. Tawara* ······· 1

*F. G. Jones, C. H. Chen, M. H. Walmer, A. E. Ray and M. G. Benz* ······· 5

Development of Rare Earth Iron Permanent Magnets

*M. Sagawa* ······· 17

*J. Yan and J. Xiong* ······· 25

*Y. Luo* ······· 31

Magnetic Hardening, Thermal Stability, and Microstructures for a New Class of Sm-TM High Temperature Magnets

*M. S. Walmer, C. H. Chen, M. H. Walmer, S. Liu and E. Kuhl* ······· 41

*D. Goll, W. Sigle, G. C. Hadjipanayis and H. Kronm* üller ······· 61

*S. Liu, E. Kuhl, C. H. Chen, M. H. Walmer, W. Gong and P. Liu* ······· 71

Rare-Earth Magnets with High Energy Products

*Y. Kaneko* ······· 83

*M. G. Benz, J. C. Shei, C. H. Chen, M. S. Walmer and F. M. Doyle* ······· 99

*S. Sasaki, J. Fidler and M. Sagawa* ······· 109

*W. Rodewald, R. Blank, B. Wall, G. W. Reppel and H. D. Zilg* ······· 119

*R. Hamada, K. Tamura, M. Shimao and T. Minowa* ······· 127

Study of the Process of Didymium-Iron Double Alloy Calcium-Thermal Obtaining (Dd-Fe)

*Y. Putilov, M. Kotsar, A. Mukchachev, M. Morozova and Y. Shestak* ·······139

*F. Beneduce, D. Rodrigues, P. F. Nogueira, F. J. G. Landgraf and S. Marques* ······· 149

*S. Liu, E. Kuhl, C. H. Chen, M. S. Walmer, M. H. Walmer and W. Gong* ······· 159

*Y. Zhang, W. Tang, G. C. Hadjipanayis, D. Goll,H. Kronmüller, C. H. Chen, C. Nelson and K. Krishnan* ······· 169

*W. Tang, Y. Zhang, J. F. Liu, C. H. Chen and G. C. Hadjipanayis* ······· 179

*W. Pan, W. Li, L. Y. Cui, Z. H. Guo and S. Z. Dong* ·······189

*M. Gjoka, O. Kalogirou, D. Niarchos and G. C. Hadjipanayis* ·······195

*K. Sakaki, K. Sato, T. Hashimoto, H. Nakamura and T. Minowa* ·······205

*Y. Putilov, M. Morozova, Y. Shestak, S. Ustinova and N. Yanchik* ·······215

*A. Kianvash and I. R. Harris* ·······223

*H. R. Madaah-Hosseini, A. Kianvash, M. Seyyed-Reihaniand H. Yoozbashi-Zadeh* ······· 229

*C. Ishizaka, H. Nishio, E. Kato and A. Fukuno* ······· 237

*R. S. Mottram, B. E. Davies, M. G. Taylor and I. R. Harris* ······· 247

*K. T. Park, K. Hiraga and M. Sagawa* ······· 257

*K. Mitake, N. Kataoka, S. Hashimoto and K. Yajima* ······· 265

*L. Xianglian, Z. Shouzeng and D. Qingfei* ······· 275

*D. Rodrigues, M. Emura, S. R. Janasi, F. J. G. Landgraf and F. Beneduce Neto* ······· 283

*A. Luedtke, B. Stahl, I. R. Harrisand G. S. Schneider* ······· 291

*M. F. de Campos and F. J. G. Landgraf* ······· 297

*Y. Hu, M. Aindow, I. P. Jones and I. R. Harris* ······· 307

*A. Walton, J. D. Speight, A. J. Williams and I. R. Harris* ······· 315

*P. B. Gwan, S. J. Collocott and J. B. Dunlop* ······· 325

*A. Bovda, V. Finkel, D. Kutniy, L. Onishenko, O. Utva and V. Bovda* ······· 331

S. Rivoirard, P. de Rango, D. Fruchart,R. Perrier de la Bâthie and D. Chateigner ······· 337

Anisotropic and Coercive NdFeB Powder for Bonded Magnets*S. Rivoirard, J. G. Noudem, P. de Rango, D. Fruchart, S. Liesertand J. L. Soubeyroux* ······· 347

*V. S. J. Burns, A. J. Williams and I. R. Harris* ······· 355

*S. Prakash Narayan, J. Prasad and D. K. Hsu* ······· 365

*R. Hermann, O. Filip, N. Mattern and L. Schultz* ······· 375

*M. A. Parry, I. R. Harris and P. J. Grundy* ······· 385

*K. Terazawa, L. Serrona, T. Okuda, N. Adachi, I. Sakamoto and A. Nakanishi* ······· 393

*S. K. Chen, G. Y. Wu and T. S. Chin* ······· 403

*T. Shima, E. Aoyagi and H. Fujimori* ······· 411

*St. Alexandru, W. Kappel, N. Stancu, M. Codescu,I. Ivan and M. Mihaescu* ······· 419

Current Status in Bonded Nd-Fe-B Magnets

*V. Panchanathan* ······· 431

*Z. Chen, Y. Zhang, M. Daniil, H. Okumura,G. C. Hadjipanayis and Q. Chen* ······· 449

*J. B. Yang, A. Handstein, O. Gutfleisch, A. Kirchner,D. Eckert and K.-H. Müller* ······· 465

*A. S. O'Connor, L. H. Lewis, R. W. McCallum, K. W. Dennis,M. J. Kramer, D. T. Kim Anh, N. H. Dan, N. H. Luong and N. X. Phuc* ······· 475

Nanophase Pr and Nd/Pr-Based Rare Earth-Iron-Boron Alloys

*H. A. Davies, J. I. Betancourt R. and C. L. Harland* ······· 485

*T. Miyoshi, H. Kanekiyo and S. Hirosawa* ······· 495

*D. H. Ping, Y. Q. Wu, H. Kanekiyo, S. Hirosawa and K. Hono* ······· 505

*M. Yamasaki, H. Mizuguchi, M. Hamano, T. Kobayashi, K. Hono,H. Yamamoto and A. Inoue* ······· 513

High Performance Hard Magnetic Nanocomposite Films

*J. P. Liu, Y. Liu, R. Skomski and D. J. Sellmyer* ······· 523

*J. L. Tsai, T. S. Chin and H. Kronmüller* ······· 537

*H. Kato, M. Ishizone, T. Miyazaki, K. Koyama, H. Nojiri and M. Motokawa* ······· 547

*C. J. Yang and S. W. Kim* ······· 557

*S. Rivoirard, P. de Rango, D. Fruchart, Y. Chastel and C. L. Martin* ······· 565

*S. Prakash Narayan* ······· 575

Effect of Pr Substitution on the Magnetic Properties of Nd-Fe-Co-Cu-Nb-B System Exchange Spring Magnets

*H. Yamamoto, S. Koumo and K. Kawamata* ······· 585

*J. I. Betancourt R. and H. A. Davies* ······· 595

*W. C. Chang, S. H. Wang, S. J. Chang and H. W. Chang* ······· 605

*W. C. Chang, I. A Chen, S. J. Chang and C. H. Yu* ······· 613

*A. G. Popov, A. S. Ermolenko, V. S. Gaviko, N. N. Schegoleva,V. V. Stolyarov and D. V. Gynderov* ······· 621

*H. Ono, M. Shimada, A. Fujiki, H. Yamamoto, M. Sonoda and M. Tani* ······· 631

*D. Goll, I. Kleinschroth and H. Kronmüller* ······· 641

*A. Barra-Barrera, R. K. Murakami and V. Villas-Boas* ······· 651

*S. Ozawa, J. Yoshizawa, T. Saito and T. Motegi* ······· 661

*W. Kaszuwara, M. Leonowicz, M. Psoda, C. Harland and H. A. Davies* ······· 669

*A. M. Gabay, Z. M. Chen, Y. Zhang and G. C. Hadjipanayis* ······· 677

*W. Zuocheng, Z. Shouzeng, Z. Maocai and Q. Yi* ······· 687

*F. Yamashita, T. Terada, H. Onishi and H. Fukunaga* ······· 695

*S. Dong, X. Li, W. Li and W. Pan* ······· 703

*W. Kaszuwara, M. Leonowicz and J. Kozubowski* ······· 711

*S. Sakurada, K. Nakagawa, F. Kawashima, T. Sawa, T. Arai and M. Sahashi* ······· 719

*H. Fukunaga, T. Matsuo and F. Yamashita* ······· 727

*R. Omatsuzawa, N. Okochi, Y. Fujita, T. Nishio and T. Iriyama* ······· 735

*T. Ishikawa, T. Iseki, K. Yokosawa, A. Kawamoto,I. Kaneko and K. Ohmori* ······· 745

*X. Liu, Y. F. Xiao, M. Yue, A. Sun and R. Wang* ······· 751

*N. Cannesan, D. N. Brown, A. J. Williams and I. R. Harris* ······· 757

*Z. Liu, T. Ohsuna, K. Hiraga and M. Tobise* ······· 767

*M. Itakura, T. Ishimi, N. Kuwano, K. Oki,R. Nakayama, K. Igarashi, K. Mori and K. Morimoto* ······· 777

*H. Mitarai, Y. Sugiura, H. Matsuoka and Y. Honkura* ······· 787

*M. Tobise, Z. Liu, M. Shindoh, S. Tanigawa and K. Hiraga* ······· 793

*P. J. McGuiness, K. Zu´zek, G. Dra´zic and S. Kobe* ······· 803

*N. Hamada, C. Mishima, H. Mitarai and Y. Honkura* ······· 813

*F. D. Saccone, F. H. Sánchez, C. Rodríguez Torres,B. Gebel and O. Gutfleisch* ······· 821

*M. Kubis, K.-H. Müller, A. Kirchner, L. Schultz and I. R. Harris* ······· 827

*K. Machida, K. Noguchi, M. Nishimura, M. Hamaguchi and G. Adachi* ······· 835

*K. Noguchi, K. Machida and G. Adachi* ······· 845

*M. Matsuura, A. Ashfaq, K. Konno and M. Sakurai* ······· 855

Production of Anisotropic Nd-Fe-B HDDR Powder with High Coercivity

*K. Igarashi, K. Mori, K. Morimoto, R. Nakayama, M. Itakura,N. Kuwano, K. Oki*
······· 865

*C. Mishima, N. Hamada, H. Mitarai and Y. Honkura* ······· 873

*O. Gutfleisch, A. Bollero, D. Eckert, B. Gebel,M. Kubis, K.-H. Müller and L. Schultz* ······· 883

*P. de Rango, F. N. Genin, D. Fruchart,A. Traverse, S. Rivoirard and I. Popa* ······· 893

Application of Halbach Cylinders to Electrical Machines

*D. Howe and Z. Q. Zhu* ······· 903

*R. E. Hanitsch* ······· 923

RE Bonded Magnet for High Performance Motors

*F. Yamashita* ······· 937

*P. Campbell, D. Miller, J. Simkin and Y. Zhilichev* ······· 955

*M. Berkouk, V. Lemarquand and G. Lemarquand* ······· 963

*A. F. Flores Filho, A. A. Susin and M. A. da Silveira* ······· 973

Preparation of TbFe_{2} Thin Film by Ion Plating Process

*Y. Matsumura, H. Uchida, M. Ono and H. Kaneko* ······· 985

*S.-Z. Zhou, X. Gao, M. Zhang and Z. Shi* ······· 995

*T. Higuchi, J. Oyama and E. Yamada* ······· 1001

*D. Hinz, P. O'Beirne, A. Kirchner, W. Stass, O. Gutfleisch,V. Panchanathan, K.-H. Müller and L. Schultz* ······· 1011

*R. E. Clark, G. W. Jewell and D. Howe* ······· 1021

*K. Miyata and K. Ohashi* ······· 1031

*K. Atallah and D. Howe* ······· 1039

*J. D. Ede, Z. Q. Zhu and D. Howe* ······· 1049

*K. Ishiyama, M. Sendoh, A. Yamazaki, K. I. Arai and M. Inoue* ······· 1059

*Y. Matsuyama, H.-Y. Zhao and D.-Y. Ju* ······· 1067

*K. Kakuno and K. Ohashi* ······· 1075

*Y. Honkura, H. Toki and M. Yamamoto* ······· 1083

*S. Kobe, G. Drazi´c and P. J. McGuiness* ······· 1093

*C. S. Zhao and D. L. Dong* ······· 1103

*L. Tian, A. Watarai, K. Arai and Y. Honkura* ······· 1107

*T. Maeda, S. Sugimoto, T. Kagotani, D. Book, M. Homma,H. Ota and Y. Houjou* 1113

*H. Kobayashi, K. Kakuno, N. Hirota and K. Ohashi* ·······1121

*R. Grössinger, M. Küpferling, A. Wimmer, M. Taraba, W. Scholz,J. Dudding, P. Lethuillier, B. Enzberg-Mahlke,W. Fernengel and G. Reyne* ······· 1129

*Y. Matsuyama, D.-Y. Ju and H.-Y. Zhao* ·······1139

*J. González, A. Zhukov and M. Vazquez* ······· 1149

*J.-P. Yonnet, M. Tur and J.-Y. Voyant* ······· 1155

*A. Fonseca, C. Chillet, J.-P. Yonnet, P. Langry and A.-L. Bui-Van* ······· 1163

······· 1173

······· 1176